November 3rd, 2014 A Study of Muon Flux in Relation to Altitude Madison West High School - Returning Team SL 2015 Preliminary Design Review Madison West High School Returning Team SL 2015 PDR Contents School Information........................................................................................................ 4 Student Participants ..................................................... Error! Bookmark not defined. Facilities and Equipment .................................................. Error! Bookmark not defined. Facilities for Rocket Design and Testing ...................... Error! Bookmark not defined. Personnel ..................................................................... Error! Bookmark not defined. Equipment and Supplies .............................................. Error! Bookmark not defined. Section 508 Compliance .............................................. Error! Bookmark not defined. Safety ........................................................................................................................... 43 Written Safety Plan .................................................................................................... 43 I. NAR Safety Requirements ...................................................................................... 43 II. Hazardous Materials .............................................................................................. 44 III. Compliance with Laws and Environmental Regulations ........................................ 44 IV. Education, Safety Briefings and Supervision ........................................................ 45 V. Procedures and Documentation ............................................................................ 45 Physical Risks ............................................................................................................ 46 Toxicity Risks ............................................................................................................. 46 Scheduling and Facilities Risks.................................................................................. 46 Rocket/Payload Risks ................................................................................................ 47 Technical Design ........................................................................................................... 5 Vehicle Dimensions ..................................................................................................... 7 Entire Vehicle ........................................................................................................... 7 Vehicle Parameters .................................................................................................. 7 Motors ........................................................................................................................ 10 Primary Motor Selection ......................................................................................... 10 Performance Predictions ........................................................................................ 10 Wind Speed vs. Altitude ......................................................................................... 11 Thrust Profile .......................................................................................................... 12 Velocity Profile ....................................................................................................... 12 Acceleration Profile ................................................................................................ 13 Vehicle Flight Sequence ........................................................................................ 14 Deployment and Recovery ......................................................................................... 16 Parachutes ............................................................................................................. 18 Drift ........................................................................................................................ 18 Universal Avionics Platform – Hermes ................................................................... 20 Performance Targets that Apply to Vehicle .................. Error! Bookmark not defined. Payload ...................................................................................................................... 23 Scientific Background............................................................................................. 24 Muon Detector Design and Operation .................................................................... 26 Experimental Flight ................................................................................................ 32 Data and Correlations ............................................................................................ 33 -2- Madison West High School Returning Team SL 2015 PDR Hypotheses ............................................................................................................ 34 Performance Targets Compliance............................ Error! Bookmark not defined. Challenges and Solutions .......................................................................................... 35 Major Vehicle Challenges ...................................................................................... 35 Major Payload Challenges and Solutions ............................................................... 35 Performance Targets Compliance ................................... Error! Bookmark not defined. Educational Engagement ........................................................................................... 48 Community Support ................................................................................................... 48 Outreach Programs.................................................................................................... 50 Project Plan ................................................................................................................. 39 Schedule .................................................................................................................... 39 Budget ....................................................................................................................... 40 Educational Standards ................................................. Error! Bookmark not defined. Sustainability .............................................................................................................. 41 Appendices ........................................................................ Error! Bookmark not defined. Appendix A - Resume for Ben...................................... Error! Bookmark not defined. Appendix B - Resume for Carl ..................................... Error! Bookmark not defined. Appendix C - Resume for Ethan .................................. Error! Bookmark not defined. Appendix D - Resume for Grace .................................. Error! Bookmark not defined. Appendix E - Resume for Mathilda .............................. Error! Bookmark not defined. Appendix F - Resume for Matthew............................... Error! Bookmark not defined. Appendix G - Resume for Meghan............................... Error! Bookmark not defined. Appendix H - Resume for Sebastian ............................ Error! Bookmark not defined. Appendix I - Resume for Winor .................................... Error! Bookmark not defined. Appendix J: Model Rocket Safety Code ....................... Error! Bookmark not defined. Appendix L: Section 508 .............................................. Error! Bookmark not defined. Appendix M: Material Safety Data Sheets ................................................................. 42 -3- Madison West High School Returning Team School Information School Name Madison West High School Title of Project A Study of Muon Flux in Relation to Altitude Administrative Staff Member West High School Principal Beth Thompson Madison West High School, 30 Ash St., Madison, WI, 53726 Phone: (608) 204-4104 E-Mail: [email protected] Team Official Ms. Christine Hager, Biology Instructor Madison West High School, 30 Ash St., Madison, WI 53726 Phone: (608) 204-3181 E-Mail: [email protected] Educators and Mentors Pavel Pinkas, Ph.D., Senior Software Engineer for DNASTAR, Inc. 1763 Norman Way, Madison, WI, 53705 Phone: (608) 957-2595 Fax: (608) 258-3749 E-Mail: [email protected] Brent Lillesand 4809 Jade Lane, Madison, WI 53714 Phone: (608) 241-9282 E-mail: [email protected] Michael Westphall, Ph. D., UW Madison Phone: 608-520-3306 E-mail: [email protected] Jim Guither Phone: 608-239-5268 E-mail: [email protected] Prof. Mutlu Özdoğan, Ph. D., SAGE UW Madison Phone: 608-262-0873 E-mail: [email protected] -4- SL 2015 PDR Madison West High School Returning Team SL 2015 PDR Section 508 Consultant: Ms. Ronda Solberg DNASTAR, Inc. (senior software designer) 3801 Regent St, Madison, WI 53705 E-Mail: [email protected] Associated NAR Chartered Section #558 President: Mr. Mark Hackler E-Mail: [email protected] WOOSH http://www.wooshrocketry.org Wisconsin Organization Of Spacemodeling Hobbyists (WOOSH) is a chartered section (#558) of the National Association of Rocketry. They assist Madison West Rocketry with launches, mentoring, and reviewing. -5- Madison West High School Returning Team SL 2015 PDR Changes Made Since Proposal Changes to vehicle Added dimensioned drawing of the vehicle Updated drift table Added vehicle verification section Added payload-vehicle integration picture and discussion Changes to Payload Updated drift table and added discussion of payload deployment altitude Added payload verification section Added Payload Concept Features and Definition Changes to Project Plan No changes to Project Plan -6- Madison West High School Returning Team SL 2015 PDR Technical Design We will use a single stage, K-class vehicle to deliver our payload to the target altitude of 5,280ft. We will be measuring muon flux at different altitudes. The rocket will be constructed from Giant Leap’s Dynawind tubing, using 3/32” G10 fiberglass sheets for fins. The rocket will be robust enough to endure 25+g of acceleration and high power rocket flight and deployment stresses. To have a successful mission the rocket must reach (but not exceed) altitude of one mile AGL and the payload must record all data necessary for our experiment. The rocket will be 156 inches long, with a 4.0 inch diameter. It has estimated liftoff mass of 22 pounds. The proposed vehicle and propulsion options are discussed in detail below. The primary propulsion choice is a K-class motor (AT K440WT, 54mm) with total impulse of 2368Ns. The vehicle can launch from a standard size, 10ft launch rail. The rocket will use dual deployment to minimize drift. Vehicle Dimensions Entire Vehicle Figure 1: A two dimensional schematic of the entire rocket. Stability margin for the entire vehicle is 6.87 calibers. Vehicle Parameters Length [in] 156 Mass [lbs] 22.2 Diameter [in] 4.0 Motor Selection AT K1440WT Stability Margin [calibers] 6.87 Table 1: The rocket’s dimensions, stability, and primary propulsion -7- Thrust to weight ratio 14.3 Madison West High School Returning Team Total Length: 156” Total Span: 10” SL 2015 PDR Liftoff Weight: 22.2lbs The figure below shows all compartments and section of our rocket. The rocket separates into four tethered parts (payload, drogue parachute compartment, bottom e-bay and solid motor booster). We will use standard dual deployment triggered by two fully redundant PerfectFlite StratoLogger altimeters. Payload separation and deployment is controlled by another two fully redundant Perfectflite StratoLogger SL100 altimeters. Figure 2: A three dimensional schematic of the entire rocket Letter A Nosecone Part -8- Madison West High School Letter B C D E F G H I Returning Team Part Payload (separates from vehicle) Deployment Electronics (Payload) Payload Parachute Rocket Drogue Parachute Deployment Electronics (Rocket) Rocket Main Parachute Motor Mount (54mm/75mm capable) Fins (3, 3/32” G10) Table 2: Rocket sections and parts -9- SL 2015 PDR Madison West High School Returning Team SL 2015 PDR Motors Primary Motor Selection Based on the results of computer simulations we have selected Aerotech K1440WT (54mm) motor as our primary propulsion choice. Our backup choice is Aerotech K1050W, 54mm motor. Characteristic parameters for each motor are shown in the table below. Motor Diameter [mm] AT K1440WT AT K1050W 54 54 Total Impulse [Ns] 2368 2522 Burn Time [s] 1.64 2.37 Stability Margin [calibers] 6.87 6.34 Thrust to weight ratio 14.3 10.1 Table 3: Motor alternatives Performance Predictions All performance predictions were calculated using OpenRocket version 14.09. The graph below shows the simulated flight profile for the AT K1440WT motor. The vehicle reaches the apogee of 5456ft in less than eighteen seconds (17.5s) after the ignition. For the purpose of this preliminary simulation the coefficient of drag is set to CD = 0.7 (we have flown this type of vehicle during our prior SLI projects and the collected flight data indicate that CD = 0.7 is a reasonable estimate of overall drag coefficient for a single diameter vehicle). The entire flight duration is estimated at 150s and the drift under 15mph wind conditions is 2800ft. Figure 3: Altitude vs. time graph for AT K1440WT motor. The rocket reaches 5456ft at 17.5s after ignition and the entire flight duration is estimated at 150s. -10- Madison West High School Returning Team SL 2015 PDR The simulations indicate a small (3.3%) overshoot of the target altitude (5,280ft AGL) however at this stage of the project we do not have enough information to decide whether this is a real issue or just a simulation artifact (in our experience, RockSIM and OpenRocket tend to provide rather optimistic apogee estimates). We will revise our simulations and make ballast decisions after we carry out both scale model and full scale vehicle test flights. Our final test flight before the SLI launch will use the same motor as we will use for our flight in Hunstsville to make sure that the rocket will not exceed the target altitude. Wind Speed vs. Altitude The effect of the wind speed on the apogee of the entire flight is investigated in the table below. Even under the worst possible conditions (wind speeds of 20mph, the NAR limit) the flight apogee will differ by less than 6% from the apogee reached in windless conditions. Wind Speed [mph] 0 5 10 15 20 Altitude [ft] 5456 5434 5371 5274 5157 Percent Change in Apogee 0.00 -0.40 -1.56 -3.30 -5.48 Table 4: Flight apogee vs. wind speed -11- Madison West High School Returning Team SL 2015 PDR Thrust Profile The graph below shows the thrust profile for the AT K1440WT motor. The AT K1440WT motor reaches its maximum thrust of 2168Ns after 0.02s and burns at approximately constant thrust level for about 1.0s (the average thrust-to-weight ratio is 14.3). The rocket requires a standard ten-foot rail for sufficient stability on the pad and leaves the 10ft rail at about 108fps (73.9mph). Figure 4: Thrust vs. time graph. The motor delivers maximum thrust of just over 2100N and burns for 1.64s. Velocity Profile According to the velocity profile (next graph), the rocket will reach maximum velocity of 496mph shortly before the burnout (1.6s). The rocket remains subsonic for the entire duration of its flight. Figure 5: Velocity vs. time graph. The motor burns out at 1.64s and the rocket reaches its maximum velocity of 496mph shortly before burnout. The rocket remains within subsonic speed range for entire duration of its flight. -12- Madison West High School Returning Team SL 2015 PDR Acceleration Profile The graph below shows that the rocket will experience maximum acceleration of about 21g. Our rocket will be robust enough to endure the 25g+ acceleration shocks. Figure 6: Acceleration [g] vs. time [s] graph. The rocket experiences maximum acceleration of 21g (206 m/s2). -13- Madison West High School Returning Team SL 2015 PDR Vehicle Flight Sequence The vehicle flight sequence is shown on the figure below. Figure 7: Vehicle flight sequence - 1. Ready; 2.Ignition; 3.Burnout at 1.64s at 715ft AGL; 4. Coast to apogee; 5. Vehicle drogue deployment at 17.5s at 5,456ft AGL; 6. Vehicle Descent on Drogue; 7. Payload Main Deployment (tentatively configured for 1,700ft and 79s); 8. Vehicle Main Deployment at 97s at 700ft; 9. Vehicle Descent on Main; 10. Vehicle Landing at 157s; 11. Payload Descent on Main; 12. Payload Landing at t = 195s The table below summarizes the flight events for the entire mission. # Event 1 2 3 4 5 6 7 8 9 10 Ready Ignition/Boost Burnout Coast Vehicle Drogue Deployment Vehicle Descent on Drogue Payload Main Deployment Vehicle Main Deployment Vehicle Descent on Main Vehicle Landing Time Altitude [s] [ft] 0 0 1.64 1.64 17.5 17.5 79 97 97 157 -14- 0 0 715 715 5,456 5,456 1700 700 700 0 Trigger Launch Controller Altimeter Altimeter Altimeter Altimeter Altimeter Madison West High School # Returning Team Event 11 Payload Descent on Main 12 Payload Landing SL 2015 PDR Time [s] Altitude [ft] 79-195 195 1700 0 Trigger Table 5: Flight events, triggers and conditions The mission is configured to satisfy all applicable performance targets. The payload due to its slow descent rate will be deployed at 1,250ft in order to remain within the confines of the launch site (2,600ft from the launch pad) even under 15mph wind speed conditions. The vehicle will also not drift more than 2,500ft from the launch pad under same conditions. The payload deployment altitude can be easily reconfigured at any time prior the launch and if required by NASA, the payload may remain tethered to the main vehicle (this may impair the quality of recorded data, however the experiment will still remain valid). Because of the known constraints of the SL official launch site, we are also planning on launching additional flights at other locations (Richard Bong Recreation Area in Wisconsin, and Black Rock, NV) where we can deploy the payload at any altitude with no constraints. At Black Rock launch the payload will travel onboard of a different vehicle, with altitude reach of 40,000ft. Our PLAR will discuss data from both the official SL launch in Huntsville and our additional flight in Bong Recreation Area (the flight at Black Rock will occur later, in June 2015). -15- Madison West High School Returning Team SL 2015 PDR Deployment and Recovery The rocket will use standard dual deployment technique for recovery. Two fully independent PerfectFlite StratoLogger altimeters will be used to fire the ejection charges. Each altimeter will have its own power source, external arming switch and set of ejection charges. The primary drogue charge will be fired at apogee (5,456ft) and the backup apogee charge will fire 1s after apogee. The main parachute will be deployed as field conditions require to prevent excessive drift, most likely at 700ft with backup charge following 200ft lower. The backup charges are 25% larger than primary charges. If the primary charge succeeds, the backup charge fires harmlessly into open air. The payload will be deployed by its own altimeters (two fully redundant PerfectFlite Stratologger SL100 altimeters) at 1250ft (official SL launch). There will be an additional electronic lock on the payload deployment charge (altimeter will only succeed in firing the charge if this lock is unlocked). The lock can be only unlocked by a radio signal from ground and will be unlocked only after RSO gives the permission to separate payload from vehicle. This is to satisfy the requirements 3.3 and 3.4. To satisfy the constraint of 4 separate sections (requirement 1.3), the vehicle is configured as shown on following illustrations. -16- Madison West High School Returning Team SL 2015 PDR 1 mile: Drogue Parachute Deployment Drogue Main Parachute Payload Parachute Bulkhead Payload Bay E-bays = Ejection Charge Deployment Figure 8: Apogee event: drogue parachute is deployed. 1775ft (Tentative): Payload Separation Payload Drogue Main Parachute Bulkhead Payload Bay E-bays = Ejection Charge Deployment Figure 9: Payload deployment altitude – payload separates from the rest of the vehicle and deploys its main parachute. The booster portion of the vehicle remains in drogue descent. 700ft: Main Parachute Deployment Main Parachute Drogue Main Parachute Bulkhead Payload E-bay = Ejection Charge Deployment Figure 10: Main parachute deploys at preset altitude (700ft primary charge, 500ft backup charge) -17- Madison West High School Returning Team SL 2015 PDR Parachutes The table below shows the estimated parachute sizes, descent rates and landing impact energy. As required, the rocket separates in no more than four tethered/independent sections (three tethered sections and a separate payload in our case) and the impact energy is no more than 75 ft-lbf for any of the parts or even entire rocket. Table 6: Parachute sizes, ejection charges and descent rates Drift We originally planned to deploy the payload at the one-mile apogee; however, given the restrictions of the launch site and how far the payload was drifting, we have calculate deployment altitude of 1,700ft AGL to prevent the payload from drifting off-site at 15mph winds. The following tables show the estimated drift of the rocket considering the descent rates in the table above, at both original and revised deployments. With our original plan, even a 10mph wind would let the payload drift outside the site. With our revised plan, we can fly in up to 15mph wind and payload will still remain within the allowed ½ mile radius. If deployed at apogee, the payload would descend for 386s. If deployed at 1,700ft, the payload will descend for 115s. -18- Madison West High School Returning Team Deploy at 5,456ft SL 2015 PDR Deploy at 1700ft Windspeed Drift Drift Windspeed Drift Drift [mph] [ft] [mi] [mph] [ft] [mi] 0 0 0 0 0 0 5 1818 0.34 5 877 0.17 10 3633 0.69 10 1755 0.33 15 5450 1.03 15 2631 0.50 20 7266 1.37 20 5308 1.01 Table 7: Payload drift calculated for deployment altitudes of 5,456ft (apogee) and 1,775ft (maximum deployment altitude that would not result inf payload drifting outside the launch site under 15mph wind speed conditions). -19- Madison West High School Returning Team SL 2015 PDR Universal Avionics Platform – Hermes In order to speed-up development of our vehicles and payloads and to allow students to spend more time on the experiments, during past few years students from Madison West Rocketry have developed a universal and extensible payload-vehicle avionics platform named Hermes. Beginning with 2013 school year, the original central processing unit of system Hermes was replaced by a smaller and more capable Mach 1.5 unit (also developed by our students). The Hermes system has been flight-tested during Rockets For Schools projects and successfully used by several one of our SLI 2013 projects. Mach 1.5 unit was successfully premiered during our SLI 2013 project, team Sound. The system will not be used for deployment purposes (we will continue to rely on proven PerfectFlite StratoLogger altimeters). System Hermes provides the following functionality out-of-box: Altitude and 3D acceleration data (100Hz, 8x oversampling, 12 or 16bit) Flight phases analysis (detects takeoff, burnout, staging, apogee, landing) Full duplex serial communication between rocket and ground (900MHz XBee) 96KB of built-in memory for experimental data (expandable as needed) GPS location (transmitted to the ground station over wireless link) Telemetry link (for experimental data transmissions) Extension ports for payload controllers or other devices Regulated DC voltage to power other components (+3.3V) In this season we intent to use the Hermes system with Mach 1.5 central unit to drive the payload operations. The 900MHz telemetry will reinforced with our new CAT System (Cloud Aided Telemetry) that relies on cellular networks and datacloud for data transmission. -20- Madison West High School Returning Team SL 2015 PDR Cloud Aided Telemetry (CAT) The Cloud Aided Telemetry system (CAT) uses an on-board Android device and app to transmit flight, tracking and payload data from an airborne rocket using any available cellular network. CAT is an 'opportunistic uploader' and can store gigabytes of data onboard while searching for available connection. CAT system has been successfully tested during our two stage flight to 8,050ft at LDRS 2014. CAT is also extensively tested on ground and shown to work reliable across distances that cannot be covered by 900MHz system. Figure 11: CAT (Cloud Aided Telemetry) system schematics: the data travels along the orange route to our data cloud (originally located in Houston, TX, now hosted by AgroGraph Inc., in Madison, WI) from where they can be retrieved via blue route by any connected device (such as a cell phone, laptop or tablet) and aid the search for the rocket and payload. CAT can transmit all experimental data as well and thus mitigate the potential loss of the payload. Payload Vehicle Integration Payload - vehicle integration is shown in the following picture: -21- Madison West High School Returning Team SL 2015 PDR Payload Parachute Nosecone E-Bay Payload E-Bay The payload resides in the top section of the rocket, directly below the nosecone and above its deployment electronics. The payload can be easily inserted and removed on the ground. During descent, the top section of the rocket containing the payload descends separately from the rest of the rocket in a horizontal orientation using y-yoke deployment. Vehicle Verification Verification Tests V1 Integrity Test: V2 Parachute Drop Test: V3 Tension Test: V4 Prototype Flight: V5 Functionality Test: V6 Altimeter Ground Test: V7 Deployment Test: V8 Ejection Test: V9 Computer Simulation: V10 Integration Test: applying force to verify durability. testing parachute functionality. applying force to the parachute shock cords to test durability testing the feasibility of the vehicle with a scale model. test of basic functionality of a device on the ground pressure chamber test test to determine if the electronics can ignite the deployment charges. ejection charge size verification use RockSim/OpenRocket to predict the behavior of the launch vehicle. ensure that the payload fits smoothly into the vehicle, and is robust enough to withstand flight stresses. Tested Components C1: Body (including construction techniques) -22- Madison West High School Returning Team SL 2015 PDR C2: Altimeter C3: Parachutes C4: Fins C5: Payload C6: Ejection charges C7: Launch system C8: Motor mount C9: Beacons C10: Shock cords and anchors C11: Rocket stability Verification Matrix Key: P: Planned C: Completed V1 V2 V3 C1 P C2 C3 P P P C4 P C5 P C6 C7 P C8 P C9 P C10 P C11 V4 P P P P P P P P P P V5 V6 P P V7 V8 P V9 V10 P P P P P P P P P P P P Status: the verification will start after the PDR teleconference. Vehicle Launch Procedures Vehicle launch procedures will be developed after the rocket design is finalized in the CDR cycle. Vehicle Safety Safety officer for the vehicle is Matthew Westphall. The detail description of the vehicle safety is included in our written Safety Plan at the end of this document. -23- Madison West High School Returning Team SL 2015 PDR Payload The objective of our project is to measure the muon flux at different altitudes. Scientific Background Muons are generated when high-energy protons enter the atmosphere. When a highenergy proton impacts an atomic nucleus in the upper atmosphere the nucleus is shattered and pions are created. Pions are unstable particles composed of a quark and an antiquark bound by the strong force. They decay in approximately 26 nanoseconds, producing muons in a matter of meters of distance travelled. Pions are significantly more massive than muons and when they decay that extra mass is converted into the kinetic energy of the muon. Resulting muons travel in the same direction as the proton that created them. P+ High velocity proton impacts nitrogen nuclei. Quarks and antiquarks form a pion. π Pion decays into a muon. µ -24- Madison West High School Returning Team SL 2015 PDR Figure 12: A high velocity proton shatters a nitrogen atom generating a muon. Muons travel very fast, approximately 98% the speed of light (0.98c). They have a charge of -1 and a mass of about 200 times that of an electron. They decay via the weak interaction. Because lepton numbers must be conserved, when muons decay they most commonly produce an electron, an electron antineutrino, and a muon neutrino. Figure 13: A muon (𝝁-) decays into an electron (𝒆− ), electron antineutrino (𝝂̅e), and muon neutrino (𝝂μ) via the weak interaction. Without relativistic effects muons would decay within 660 meters in atmosphere. Because of the time dilation and length contraction effects of special relativity, muons can reach Earth’s surface. In the muons time frame the Earth seems much closer because they are moving so close to the speed of light. Muon decay is important to our experiement. Because muons decay, our payload will see a higher rate of muon strikes at higher altitudes. Figure 14: Graph of muon strikes vs. altitude -25- Madison West High School Returning Team SL 2015 PDR Our team will be using a scintillator to detect muons as they pass through our payload. When a muon passes by a molecule of scintillator material, it excites that molecule’s electrons, providing them with energy that will force them to a higher energetic state. After the muon passes, the electron eventually returns to its original lower energy state, releasing the extra energy in the form of light (photons). The increase in photon flux can be measured using photomultiplier tubes. We will be using Hamamatsu HC124 photomultiplier tubes in our payload. Muon Detector Design and Operation Overview Our payload is comprised of two layers of fiber optic, scintillator fiber that feed into two separate photomultiplier tubes. When a muon strikes the scintillator it produces a small amount of light that then is turned into an electrical signal by the photomultiplier tubes. The individual layers are completely sealed off from each other as well as the outside world to prevent light contamination. Muon, unlike numerous other particles, has enough energy to pass through the scintillator fiber and continue on its journey (other particles may decay completely when they encounter an obstacle). Our payload uses two independent scintillator layers and only when both layers indicate a particle passage at almost same time (muons move very fast, 0.98c), we increment the detected muons count. This method is called coincidence counting and is widely used in experiments dealing with muon detection. The figure below shows illustrates the coincidence counting method. -26- Madison West High School Returning Team SL 2015 PDR Figure 15: Coincidence counter method – to increment the detected muons count, we require that both scintillator layers in our payload detect a passage of particle at the same time (PMT1 and PMT2 both register a signal). Design The physical structure of the muon detector is comprised of a combination of commercially available materials as well as three dimensionally printed parts. Three different sizes of thin walled ABS plastic tubing are used to create walls separating the two layers of scintillator fibers. Custom three dimensionally printed parts are then used to position the fibers and hold the photomultiplier tubes in place. When assembled the detector is comprised of two layers, one bigger and one smaller, that fit together concentrically allowing for simplicity in assembly. The payload is designed to be as light as possible, safe, and reliable. We had to find materials that have enough strength to withstand the stresses of flight and still be light enough to maintain sufficient performance of our rocket within the allowed impulse range. Materials and components 200, 4ft long, fiber optic plastic scintillator fibers 2 Hamamatsu HC124 series multiplier setups 1 2.5in diameter, 25in long, thin walled ABS tube 1 3.00in diameter, 25in long, thin walled ABS tube 1 3.7in diameter, 25in long, thin walled ABS tube 1 4in diameter, 40in long, coupler custom three dimensionally printed parts custom printed circuit boards -27- Madison West High School Returning Team SL 2015 PDR Figure 16: Sensor part of Hamamatsu HC124 photomultiplier tube. We will use HC124 PMTs in our payload. Assembly and Configuration The payload is comprised of two, completely separated layers of scintillator fibers encircling the detector electronics, all enclosed in a 4 inch black fiberglass tube coupler. The layers are separated by ABS plastic tubing with the photomultiplier tubes positioned at either end. Figure 17: Muon detector overall assembly. The scintillator fibers are divided into two independent layers (outer and inner), each layer being monitor by its own photomultiplier tube (PMT). -28- Madison West High School Returning Team SL 2015 PDR Figure 18: Payload cross-section – all payload electronics is housed inside two layers of scintillator fibers. Due to the nature of how high velocity particles decay in the upper atmosphere, muons primary enter the atmosphere perpendicular to the Earth’s surface. This dictates the orientation of muon detector, in order to maximize the detection rate of muons. To increase detector’s active area we are going orient the payload parallel to the Earth’s surface. This will be achieved by using Y-yoke attachment of the payload parachute, as illustrated below. Figure 19: Payload descending horizontally to maximize the rate of payload detection. -29- Madison West High School Returning Team SL 2015 PDR Parachute Rest of Rocket Tether points E-Bay Payload Bay Nosecone Y-Yoke Deployment Figure 20: Y-yoke parachute attachment. We have successfully used the Y-yoke parachute attachment in our previous SLI project, in 2006 (the payload section housed two DSLR cameras looking through the side of the payload bay). Below is a picture of 2006 project in flight. Figure 21: A practical implementation of Y-yoke parachute attachment in SLI 2006 project (infrared aerial photography). -30- Madison West High School Returning Team SL 2015 PDR Payload Block Scheme Muons are detected by scintillator based detector. The signals from photomultiplier tubes are evaluated for coincidence of events by detection electronic and the results are fed to the central processing unit (Mach 1.5 payload computer). The computer also monitors and stores information from altimeters, accelerometers and GPS sensors. CAT (Cloud Aided Telemetry) device (an Android phone with custom app) transmits all collected data (including the location of the rocket and payload) via cellular network to our data cloud. FLIGHT & DEPLOYMENT MUON DETECTOR Figure 22: Block scheme of the payload. -31- Madison West High School Returning Team SL 2015 PDR Data Usage The table below describes the predicted data usage of the payload and the calculations that led to those predictions. Condition Expected Event Rate Payload Area Data Writing Rate Payload Deployment Altitude Payload Descent Rate Altitude data per second Total Flight Time Bytes(count) Expected Capture Rate And data per second Xor data per second Data Per Second Total Data Usage Calculation Given Given Given Given Value 1 muon / cm2 / min 900 cm2 1 / sec 1700 ft Given Given Altitude * Flight time ⌈𝑙𝑜𝑔2 (𝑐𝑜𝑢𝑛𝑡)⌉ Event Rate * Payload Area 14 ft/sec 2 Bytes / sec 122 sec N/A 900 muons / min (15 / sec) 2 Bytes / sec (Bytes(Capture Rate)+1) * Writing Rate 2 * (Bytes(4 * Capture Rate) +1) * Writing Rate Altitude + And + Xor Data per Second * Flight Time 4 Bytes / sec 8 Bytes / sec 970 Bytes Table n: Data Usage Calculations Experimental Flight The rocket delivers the payload to the desired probe deployment altitude. The rocket then separates into two sections: the booster and the payload bay. At separation, the payload bay deploys its main parachute. The booster utilizes a dual deployment system with its drogue parachute deploying at apogee and its main parachute deploying at 700ft. During its descent, the payload measures the amount of muons in relation to altitude. In addition, our payload sends its position to our datacloud via a smartphone running our Cloud Aided Telemetry (CAT) app. Note that the separation of payload and drogue parachute deployment are two separate events and we can separate the payload at any preset altitude (not just apogee). We will fully comply with launch site restrictions and separate payload at altitude that will guarantee that the payload will land inside the launch site. -32- Madison West High School Returning Team SL 2015 PDR Figure 23: Flight sequence – payload separates from the rocket at preset altitude (not necessarily at apogee) and descends horizontally to maximize the detection rate of muons. Payload and vehicle land separately. Data and Correlations The following quantities will be measured and recorded: Independent Variables a A X Acceleration Altitude Location (GPS) Dependent Variables µ Muon Flux Primary Correlations µ = f(A) Muon Flux in relation to Altitude -33- Madison West High School Returning Team SL 2015 PDR Hypotheses Muon Count We make the following hypothesis: As altitude decreases, muon flux will decrease at an exponentially proportional rate. Altitude -34- Madison West High School Returning Team SL 2015 PDR Challenges and Solutions Major Vehicle Challenges 1. Performance: Our payload is 4ft long and adds significant weight to the vehicle. We will exercise care and proper techniques when building the delivery vehicle to maximize the rocket’s performance. Additionally, payload position in the front of the rocket increases the stability of the vehicle to 6.87 calibers and we may experience significant weathercocking. We are considering using canted fins or spin-tabs to induce spin around axial axis of rocket to minimize the weathercocking. 2. Deployment Scheme: our payload section must descend separately from our vehicle in a horizontal orientation. To achieve this, we will use a Y-yoke deployment scheme for the payload section. Y-yoke scheme has been previously tested during our SLI 2006 project. Our deployment scheme will meet the requirement of a maximum of four (4) tethered or separate sections. 3. Launch Site Dimensions: the launch site in Huntsville allows for only 2,500ft drift during recovery. We will have to carefully select the drogue and main parachute sizes to ensure that the vehicle will not drift outside the launch site yet it will have enough time to deploy main parachute and land safely with no section of the vehicle exceeding the maximum impact energy of 75ft-lbf. We will closely monitor the descent rates during our test flights and make adjustments to parachutes and deployment schedule as necessary. Major Payload Challenges and Solutions 1. Complex payload: Our payload requires custom electronics, precise structural subsystem and detailed knowledge of methods of muon detection. We will use 3D printers to produce the structural subsystem, we will work UW electrical engineers and our mentors to design and manufacture the custom printed circuit boards and we are working with two experts on muon detection (Prof. Dan McCammon from UW Dept. of Physics and Dr. Michael Westphall). 2. Tracking and recovery: if the payload is deployed at high altitude, it may drift for long time. We will use our newly developed CAT (Cloud Aided Telemetry) system to track and recover both the payload and the rocket. For the official SLI launch the probe deployment altitude will be set according to NASA instruction and to meet to limitations of the launch site. 3. Light Contamination: Our payload detects muons by measuring the small amount of light emitted by scintillating materials when muons pass through them. Any amount of light contamination would result in false detection of -35- Madison West High School Returning Team SL 2015 PDR muons. To get accurate measurements, we require zero photon darkness. We plan to achieve this by surrounding the payload with a single piece of black fiberglass to reduce seams, and coating that fiberglass in a zero photon emitting material. 4. Counting Rate: Muons enter the atmosphere at a relatively low rate, 1 muon per square centimeter per steradian per minute. (60-1sr-1cm-2s-1). Our payload will need to have a large surface area and remain airborne for a sufficient period in order to get sufficient muon readings. Our payload will descend horizontally to create a large surface area, and will descend under a large parachute to increase time aloft. 5. Payload Durability: Our payload will use photomultiplier tubes to measure the light emitted by scintillating materials when light passes through them. Photomultiplier tubes contain fragile components that might be damaged by high g forces. We will need to select a robust variety of photomultiplier tubes capable of withstanding at least 25g of acceleration. Additionally, the scintillating material must be light and robust enough to be able to be flown effectively and to withstand the stresses of rocket flight. We have selected scintillating optic fibers, which are light and durable, for this task. Payload Concept Features and Definition Creativity and Originality There has not been significant research done on the effects of altitude on muon flux. Our new research will allow us to analyze muon flux and we can draw conclusions about muon flux based on altitude. The 3D printed aspects of the payload and complexity of our analysis makes our project new and innovative. Uniqueness or Significance We chose to study muon flux at different altitudes because by studying this, we can learn more about the manner in which muons decay. Muons are worth studying because they enable us to trace their origins, helping us learn more about how the universe began. Level of Challenge Given the complexity of our electronics and the precise structural subsystem and detailed knowledge of methods of muon detection needed, our experiment and report will be extraordinarily challenging. In addition the counting rate and payload durability will provide a challenge. The tracking and recovery of the payload given its long period -36- Madison West High School Returning Team SL 2015 PDR of descent will also make data collection very challenging. We will use our newly developed CAT (Cloud Aided Telemetry) system to track and recover both the payload and the rocket in order to ensure accurate collection of data. Although the challenges are many, our experiences with rocketry have given us the knowledge and ability to deal with the complicated experiments and design required by our SLI project. Our mentors and UW electrical engineers (Prof. Dan McCammon from UW Dept. of Physics and Dr. Michael Westphall) are also a source of advice and their support will be critical for the project’s success. Payload Verification Verification Tests V1 Functionality Test: V2 Integrity Test: V3 Calibration Test: V4 Battery Test: V5 Connection Test: Test of basic functionality of a device on the ground Applying force to verify durability Calibration and test of accurateness and preciseness Test for sufficient amount of battery power Test of proper connection of components Tested Components C1: C2: C3: C4: C5: C6: C7: C8: C9: C10: Photomultiplier Tubes Scintillator Optic Fibers Detection Electronics Central Processing Unit Accelerometer Altimeter GPS Cloud Aided Telemetry Transmitter Parachutes -37- Madison West High School Returning Team SL 2015 PDR Verification Matrix Key P: Planned C: Completed C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 V1 P P P P P P P P P V2 P P V3 P V4 P P P P P P P P P P P P P P P V5 P P P P P P P P P P Status: the verification will start after the PDR teleconference. Payload Safety The payload safety officer is Carl Cortright. The detailed discussion of payload safety is include in the written Safety Plan section at the end of this document. -38- Madison West High School Returning Team SL 2015 PDR Project Plan Schedule Table 8: Timeline of SL 2015 The schedule is subject to changes as the launch windows for 2015 are not confirmed yet (the schedule shows our best estimate based on the launch site schedule from previous years). -39- Madison West High School Returning Team SL 2015 PDR Budget Vehicle Tubing, nosecone, bulkheads, rings $400.00 Fin Material (G10 Fiberglass) $150.00 Paint and Primer $100.00 PerfectFlite Stratologger Altimeter (x4) $300.00 Motor Retention $50.00 Motor Casing $450.00 Parachutes, recovery gear $200.00 Epoxy $200.00 CAT Enabled Smart Phones (x2) $80.00 Walston Beacon (x2) $300.00 Miscellaneous Supplies (tools, batteries, wires, hardware) $300.00 Scale Model Tubing $150.00 Parachutes and Shock Cord $100.00 Fin Material (G10 Fiberglass) $50.00 Motors Scale Model Motors $200.00 Full Scale Test Flight Motors $20.00 Payload Main Computer $200.00 ABS Tubing $100.00 Scintillator Fibers $600.00 Photomultiplier Tube (x2) $200.00 Fiberglass Coupler Tubing $50.00 Total $4,200.00 Table 9 : Budget for 2012-13 SLI Program (* - already in possession) -40- Madison West High School Returning Team SL 2015 PDR Flight $400/Person * 11 People $4,400.00 Rooms $119/Room * 6 Rooms * 5 Nights $2,975.00 Car Rental (Ground Support Vehicle) $500 rental+ $600 gas $1100.00 Total $8,475.00 Cost per Team Member $ 941.67 Table 10: Budget for the travel to Huntsville, AL Madison West Rocket Club has sufficient money earning opportunities (raking leaves/yardwork, donations from families or mentors) to cover for possible discrepancies between the estimated budget and actual project expenses. Additionally, it is our policy to provide necessary economic help to all SLI students who cannot afford the travel expenses associated with the program. Every year we award several full expense travel scholarships both to our SLI and TARC students. The monetary amounts and the names of recipients are not disclosed. -41- Madison West High School Returning Team SL 2015 PDR Appendix M: Material Safety Data Sheets All MSDS sheets are available on our website http://westrocketry.com/sli2015/safety/safety2015m.php Propulsion and Deployment Ammonium Perchlorate Aerotech Reloadable Motors Aerotech Igniters M-Tek E-matches Pyrodex Pellets Black Powder Nomex (thermal protector) Glues Elmer’s White Glue Two Ton Epoxy Resin Two Ton Epoxy Hardener Bob Smith Cyanoacrylate Glue (superglue) Superglue Accelerator (kicker) Superglue Debonder Soldering Flux Solder Painting and Finishing Automotive Primer Automotive Spray Paint Clear Coat Construction Supplies Carbon Fiber Kevlar Fiberglass Cloth Fiberglass Resin Fiberglass Hardener Self-expanding Foam Solvents Ethyl Alcohol 70% Payload Materials Aluminum Acrylic Polycarbonate -42- Madison West High School Returning Team SL 2015 PDR Safety Written Safety Plan I. NAR Safety Requirements a. Certification and Operating Clearances: Mr. Lillesand holds a Level 3 HPR certification. Dr. Pinkas has a Level 1 HPR certification and plans on having a Level 2 HPR certification by the end of February 2015. Mr. Guither holds a level 1 HPR certification. He plans to complete his Level 2 by April 2015 and is our back-up launch supervisor. Mr. Lillesand has Low Explosives User Permit (LEUP). If necessary, the team can store propellant with Mr. Goebel, who owns a BATFE approved magazine for storage of solid motor grains containing over 62.5 grams of propellant. Mr. Lillesand is the designated individual rocket owner for liability purposes and he will accompany the team to Huntsville. Upon their successful L2 certification, Mr. Guither and Dr. Pinkas will become a backup mentors for this role. All HPR flights will be conducted only at launches covered by an HPR waiver (mostly the WOOSH/NAR Section #558 10,000ft waiver for Richard Bong Recreation Area launch site and 15,000ft waiver for Princeton, IL, TRA QCRS site). All LMR flights will be conducted only at the launches with the FAA notification phoned in at least 24 hours prior to the launch. NAR and NFPA Safety Codes for model rockets and high power rockets will be observed at all launches. Mentors will be present at all launches to supervise the proceedings. b. Motors: We will purchase and use in our vehicle only NAR-certified rocket motors and will do so through our NAR mentors. Mentors will handle all motors and ejection charges. c. Construction of Rocket: In the construction of our vehicle, we will use only proven, reliable materials made by established manufacturers, under the supervision of our NAR mentors. We will comply with all NAR standards regarding the materials and construction methods. Reliable, verified methods of recovery will be exercised during the retrieval of our vehicle. Motors will be used that fall within the NAR HPR Level 2 power limits as well as the restrictions outlined by the SL program. Lightweight materials such as fiberglass tubing and carbon fiber will be used in the construction of the rocket to ensure that the vehicle is under the engine’s maximum liftoff weight. The computer programs RockSim and Open Rocket will be utilized to help design and pre-test the stability of our rocket so that no unexpected and potentially dangerous problems with the vehicle occur. Scale model of the rocket will be built and flown to prove the rocket stability. d. Payload: As our payload does not contain hazardous materials, it does not present danger to the environment. However, our NAR mentors will check the payload prior to launch in order to verify that there will be no problems. -43- Madison West High School Returning Team SL 2015 PDR e. Launch Conditions: Test launches will be performed at Richard I. Bong Recreation Area or Princeton, IL, with our mentors present to oversee all proceedings. All launches will be carried out in accordance with FAA, NFPA and NAR/TRA safety regulations regarding model and HPR rocket safety, launch angles, and weather conditions. Caution will be exercised by all team members when recovering the vehicle components after flight. No rocket will be launched under conditions of limited visibility, low cloud cover, winds over 20mph or increased fire hazards (drought). II. Hazardous Materials All hazardous materials will be purchased, handled, used, and stored by our NAR mentors. The use of hazardous chemicals in the construction of the rocket, such as epoxy resin, will be carefully supervised by our NAR mentors. When handling such materials, we will make sure to carefully scrutinize and use all MSDS sheets and necessary protection (gloves, goggles, proper ventilation etc.). All MSDS sheets and federal/state/local regulation applicable to our project are available online at http://westrocketry.com/sli2015/safety/safety2015m.php III. Compliance with Laws and Environmental Regulations All team members and mentors will conduct themselves responsibly and construct the vehicle and payload with regard to all applicable laws and environmental regulations. We will make sure to minimize the effects of the launch process on the environment. All recoverable waste will be disposed properly. We will spare no efforts when recovering the parts of the rocket that drifted away. Properly inspected, filled and primed fire extinguishers will be on hand at the launch site. Cognizance of federal, state, and local laws regarding unmanned rocket launches and motor handling The team is cognizant and will abide with the following federal, state and local laws regarding unmanned rocket launches and motor handling: Use of airspace: Federal Aviation Regulations 14 CFR, Subchapter F, Part 101, Subpart C Handling and use of low explosives: Code of Federal Regulation Part 55 Fire Prevention: NFPA1127 Code for High Power Rocket Motors All of the publications mentioned above are available to the team members and mentors via links to the online versions of the documents. -44- Madison West High School Returning Team SL 2015 PDR http://westrocketry.com/sli2015/safety/safety2015m.php WRITTEN STATEMENT OF SAFETY REGULATIONS COMPLIANCE All team members understand and will abide by the following safety regulations: a. Range safety inspections of each rocket before it is flown. Each team shall comply with the determination of the safety inspection. b. The Range Safety Officer has the final say on all rocket safety issues. Therefore, the Range Safety Officer has the right to deny the launch of any rocket for safety reasons. c. Any team that does not comply with the safety requirements will not be allowed to launch their rocket. IV. Education, Safety Briefings and Supervision Mentors and experienced rocketry team members will take time to teach new members the basics of rocket safety. All team members will be taught about the hazards of rocketry and how to respond to them; for example, fires, errant trajectories, and environmental hazards. Students will attend mandatory meetings and pay attention to pertinent emails prior participation in any of our launches to ensure their safety. A mandatory safety briefing will be held prior each launch. During the launch, adult supervisors will make sure the launch area is clear and that all students are observing the launch. Our NAR mentors will ensure that any electronics included in the vehicle are disarmed until all essential prelaunch preparations are finished. All hazardous and flammable materials, such as ejection charges and motors, will be assembled and installed by our NAR-certified mentor, complying with NAR regulations. Each launch will be announced and preceded by a countdown (in accordance with NAR safety codes). V. Procedures and Documentation In all working documents, all sections describing the use of dangerous chemicals will be highlighted. Proper working procedure for such substances will be consistently applied, such as using protective goggles and gloves while working with chemicals such as epoxy. MSDS sheets will be on hand at all times to refer to for safety and emergency procedures. All work done on the building of the vehicle will be closely supervised by adult mentors, who will make sure that students use proper protection and technique when handling dangerous materials and tools necessary for rocket construction. -45- Madison West High School Returning Team SL 2015 PDR Physical Risks Risks Saws, knives, Dremel tools, band saws Sandpaper, fiberglass Drill press Consequences Laceration Mitigation All members will follow safety procedures and use protective devices to minimize risk Abrasion Soldering iron Burns Computer, printer Workshop risks Electric shock All members will follow safety procedures and use protective devices to minimize risk All members will follow safety procedures and use protective devices to minimize risk All members will follow safety procedures to minimize risk All members will follow safety procedures to minimize risk All work in the workshop will be supervised by one or more adults. The working area will be well lit and strict discipline will be required Puncture wound Personal injury, material damage Table 11: Risks that would cause physical harm to an individual Toxicity Risks Risks Epoxy, enamel paints, primer, superglue Superglue, epoxy, enamel paints, primer Consequences Toxic fumes Toxic substance consumption Mitigation Area will be well ventilated and there will be minimal use of possibly toxic-fume emitting substances All members will follow safety procedures to minimize risk. Emergency procedure will be followed in case of accidental digestion. Table 12: Risks that would cause toxic harm to an individual Scheduling and Facilities Risks Risks Workshop space unavailable Design facilities unavailable Consequences Unable to complete construction of rocket and/or payload Unable to complete project Team members Unable to complete unavailable project Mitigation We will insure the availability of our workshop space for the times that we need it. We will also work at team members’ homes if necessary. We will insure the availability of our design facilities and work at team members’ homes if needed. We will plan meetings in advance and insure that enough team members will be present to allow sufficient progress. Table 13: Scheduling risks that would inhibit our progress on our project -46- Madison West High School Returning Team SL 2015 PDR Rocket/Payload Risks Risks Consequences Unstable rocket Errant flight Improper motor mounting Damage or destruction of rocket. Weak rocket structure Propellant malfunction Rocket structural failure Engine explosion Parachute Parachute failure Payload Payload failure/malfunction Errant flight Launch rail failure Separation failure Parachutes fail to deploy Ejection falsely triggered Unexpected or premature ignition/personal injury/property damage Rocket is lost Recovery failure Transportation damage Possible aberrations in launch, flight and recovery. Mitigation Rocket stability will be verified by computer and scale model flight. Engine system will be integrated into the rocket under proper supervision and used in the accordance with the manufactures’ recommendations. Rocket will be constructed with durable products to minimize risk. All members will follow NAR Safety Code for High Powered Rocketry, especially the safe distance requirement. Attention of all launch participants will be required. Mentors will assemble the motors in accordance with manufacturer's instructions. Parachute Packaging will be double checked by team members. Deployment of parachutes will be verified during static testing. Team members will double-check all possible failure points on payload. NAR Safety code will be observed to protect all member and spectators. Launch rail will be inspected prior each launch. Separation joints will be properly lubricated and inspected before launch. All other joints will be fastened securely. Proper arming and disarming procedures will be followed. External switches will control all rocket electronics. The rocket will be equipped with radio and sonic tracking beacons. Rocket will be properly packaged for transportation and inspected carefully prior to launch Table 14: Risks associated with the rocket launch -47- Madison West High School Returning Team SL 2015 PDR Educational Engagement Community Support After twelve years of the club’s existence, we are well known at various departments of the UW and many researchers are eager to work with us. During our nine years of participation in SLI we have met with a number of people from various departments within the University of Wisconsin-Madison, including Professor McCammon from the department of Physics, Professor Eloranta from the department of Atmospheric Sciences, Professor Pawley from the department of Zoology, and Professors Anderson and Bonazza from the department of Mechanical Engineering. Last year we have added Prof. Fernandez and Prof. Gilroy from the department of Botany, and Prof. Masson from the department of genetics. This year Prof. Özdoğan from Nelson Institute for Sustainability and Global Environment will serve as an expert on remote sensing and image analysis.These contacts have been incredibly helpful in designing and refining our original experimental ideas and creating an experiment that will return meaningful data. We have finally achieved official affiliation with UW Madison and our research meetings are now held in Chamberlin Hall, Dept. of Physics. This provides us with state of art classroom, including projection technology and document camera that we can use during our meeting. We are also participating in UW outreach activities, such as Physics Open House, Super Science Saturdays (in summer) and most importantly Wisconsin Science Festival, where we can reach over 2,000 people. Every year we raise funds by raking leaves during autumn in local neighborhoods. We find this is an excellent way to earn the support of the community and increase our visibility. The club also provides a steady stream of volunteers for public television and public radio fundraising drives. While this is not a direct display of our work or interests, it gives us the opportunity to provide public service in the name of our club. In 2009 many club members gave back to the community by helping build a fence in the local soccer park where we also happen to launch our TARC practice flights in the winter. We are currently discussing other soccer park improvements with their management. In 2012 we have won TARC national contest for second time in our club history. This has brought our club into spotlight and we have received communications from senators, mayor, Dane County board and others. NBC channel broadcasted a 4 minute documentary about our club and Wisconsin State Journal printed a full length article. We are also scheduled for an hour long show at local community radio station (WORT 89.9FM). -48- Madison West High School Returning Team SL 2015 PDR We have established our Twitter and Facebook presence and at peak times our postings reach over 2,000 people. -49- Madison West High School Returning Team SL 2015 PDR Outreach Programs Each year we participate in many educational engagement opportunities, such as helping sizeable groups of young children at the local middle schools to build and fly Alka-Seltzer powered rockets. We launched about 300 rockets for an audience of about 150 kids during this program, as well as displaying some of our TARC, SLI and R4S rockets. We are currently participating in our annual “Raking for Rockets” program, where we rake community lawns in order to simultaneously bring about an increased awareness in rocketry, and raise the funds necessary for our TARC and SLI programs. For a second year in a row we are invited to present our projects at Wisconsin Science Festival, where we reach estimated 2,000 people. In addition to displaying several recent and current SLI and R4S payloads, we will be offering ability to build and launch pneumatic and Alka Seltzer rocket (including the ever popular Seltzurn V and Alkollo 13). Besides these programs, we also recruited new members for our club at Madison West High School (our current membership is above 50 students mark) in a number of recruitment events which included the daily announcements, organized recruitment events, and posters throughout the school advertising the location and time of the first informational meeting. The new members will participate in TARC, along with a few returning members from our SLI teams. TARC sessions provide interested new members learning about the basics of rocket design, building, and operation. -50- Madison West High School Returning Team SL 2015 PDR The table below show the outreach programs that plan for this year. The programs target primarily elementary and middle schools. We will most likely add several events to this program as the year progresses (we have become well known for our outreach activities and we are steadily receiving requests from schools and organization that we have never worked with before). Date Oct. 10, 2014 School Randall Elementary Oct. 18, 19, 2014 Wisconsin Science Festival Kids Express Physics Open House O’Keefe Middle School –Super Science Saturday Franklin and Randall Elementary - Super Science Saturday Nov. 15, 2014 Feb. 21, 2015 Mar. 7, 2015 Mar. 14, 2015 Outreach School Homecoming Parade Alka-Seltzer Rockets, Pneumatic Rockets Alka-Seltzer Rockets Displays, presentations Alka-Seltzer Rockets, Pneumatic Rockets # of People (estimate) 200 Alka-Seltzer Rockets, Pneumatic Rockets 100 2000 50 200 80 Total: 2630 Table 15: Planned outreach events. -51-
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