T-44A Operational Limits (April 2007)
Airspeed
KIAS
General
VMO/VNE Max dive/level flight
VMCA Minimum controllable airspeed
VX Best angle of climb
VY Best rate of climb
VSSE Minimum safe 1 engine inop
VXSE Best angle of climb single engine
VYSE Best rate of climb single engine
VFE Max flap extension/extended (full)
VFE Max flap extension/extended (appr)
VLR Max landing gear retraction
VLE Max landing gear extension
VA Maneuvering speed
VMCG Min controllable speed on gnd
Max range glide
Max endurance glide
227
86
102
108
91
102
110
140
174
145
155
153
63
130
102
Pneumatic pressure norm operating range
Max sink rate on landing
Max crosswind
Max cabin pressure differential
Gyro suction norm operating range
Min oxygen required for local/X-C flight
Prop deicer ammeter normal operation
General
12-20 psi
600 fpm
20 knots
4.7 psi
4.3-5.9 inHg
1000/1500 psi
14-18 amps
Left squat Switch (HHHAP)
H – AOA heat 14V on deck vice 28V in-flight
H – L eng lip boot heat inop on deck
H – Gnd max (8 elements) enabled on deck
A – Ambient air solenoid
P – Pressurization Controls: 1) Preset 2) Dump 3) Door
Memory Items/Bold Face
Engine Failure After Takeoff
1) Power – As Required
DC generator voltage
28.25  .8 VDC
AC Inverter voltage
114  7 VAC
AC Inverter frequency
400  6 Hz
Min battery voltage for APU charge
18 VDC
Min battery voltage for APU start
20 VDC
Min battery voltage for BATT start
22 VDC
Starter Cycle
(40sec, 60sec) X 2, then 40sec, 30min.
Interstage Turbine Temperature (ITT)
Normal operating range
Max allowable
Max continuous
Max reverse
Max acceleration (up to 2 sec)
Max low idle
Max cruising
Cruise climb
Start Limit
925 (cutoff )
400–790 C
790 C
790 C
790 C
850 C
685 C
740 C
765 C
1090 (2 sec)
31,000 ft
Right Squat Switch (GFISH)
G – Landing Gear Circuit Inop, J-Hook engaged
F – Flight hour meter inop on deck
I – AOA Indexer Lights inop on deck
S – Stall Warning inop on deck
H – R eng Lip Boot Heat Inop on deck
Memory Items/Bold Face
Smoke/Fire of Unknown Origin
1) Crew – Alerted
2) Cabin Temperature Mode – OFF
3) Vent Blower – AUTO
4) Oxygen Masks/MIC switches (100%) – As Required
Primary Governor Failure/Malfunction
3) Airspeed – As Required (VXSE or VYSE)
4) Emergency Shutdown Checklist – Execute
1) Propeller RPM - Adjust to Normal RPM
2) Power Lever - IDLE
3) Propeller Lever - FEATHER
4) Alternate Feathering Checklist - As Required
Emergency Engine Shutdown On Deck
Emergency Descent
1)
2)
3)
4)
5)
6)
1)
2)
3)
4)
5)
6)
2) Gear – UP
Electrical
Aircraft Ceiling
Condition Levers – FUEL CUTOFF
Firewall Valves – CLOSED
Boost Pumps – OFF
Fire Extinguisher – As Required
Gang Bar – OFF
Evacuate Aircraft
Jammed Power Lever
1) Condition Lever (affected engine) – FUEL CUTOFF
2) Emergency Shutdown Checklist - Execute
Fuel Leaks
1) Condition Lever – FUEL CUTOFF
2) Emergency Shutdown Checklist - Execute
Power Levers – IDLE
Propellers – FULL FORWARD
Flaps – As Required
Landing Gear - As Required
Airspeed – As Required
Windshield Heat – As Required
Single Engine Waveoff
1)
2)
3)
4)
5)
Power – Max Allowable (Est + ROC – Vxse min)
Flaps – APPROACH (unless already UP)
Gear – UP
Flaps – UP
Props – 1900 RPM
Brake Fire
Torque
Normal operating range
Max @ 1900 RPM
Max @ 2200 RPM
Max acceleration
Emergency Shutdown Checklist
400–1315 ft-lb
1520 ft-lb
1315 ft-lb
2100 ft-lb
Turbine Tachometer (N1)
Normal Operating Range
Low idle range
Hi idle range
Max reverse
Max acceleration
Max continuous
50-101.5 %
50-53 %
64-67 %
86 %
102.6 %
101.5 %
Propeller Tachometer (N2)
Normal operating range
Max reverse
Max during accel (2sec)
1) Power lever – IDLE
2) Prop lever – FEATHER
3) Condition lever – FUEL CUTOFF
If Fire or Fuel Leak:
4) Firewall valve – CLOSED
5) Fire Extinguisher – As Required
6) Bleed air – CLOSED
Normal operating range
Max oil temp
10-99 C
99 C
Oil Pressure
Normal operating range
Max oil pressure
Min oil pressure
85-100 psi
100 psi
40 psi
Weights
Max ramp weight
Max takeoff weight
Max landing weight
9710 lbs
9650 lbs
9168 lbs
1) Condition Lever - FUEL CUTOFF (note max ITT)
2) Starter - OFF
1) Oxygen Mask/Mic Switch (100%) - As Required
2) Descend – As Required
1) Announce “Abort”
2) Power levers – IDLE
3) Reverse – As Required
4) Brakes – As Required
- - Immediately prior to departing the runway - 5) Condition levers – FUEL CUTOFF
- - As soon as practicable - 6) Firewall valves – CLOSED
7) Boost pumps – OFF
8) Fire extinguisher(s) – As Required
9) Gang bar – OFF
10) Evacuate aircraft
Windmilling Airstart
Spin Recovery
1) Power Lever (Failed Engine) - IDLE
2) Propeller Lever (Failed Engine) – FULL FORWARD
3) Condition Lever (Failed Engine) - FUEL CUTOFF
4) Firewall Valve - OPEN
5) Autoignition - ARM
6) Condition Lever - LOW IDLE
7) Power - As Required
1)
2)
3)
4)
5)
1) Generator-OFF, Reset Momentarily, Then ON.
If generator will not reset:
2) Generator – OFF
3) Current Limiter (Battery Ammeter) – Checked
1) Oxygen Mask/Mic Switch (100%) - As Required
2) Pressurization - DUMP
Explosive Decompression
Oil Temperature
Abnormal Start
Aborted Takeoff
Generator Failure
Smoke and Fume Elimination
1800-2200 rpm
2100 rpm
2420 rpm
1) Firefighting Assistance - Request
2) Stop Aircraft
3) Emergency Shutdown on Deck Checklist - Execute
Power Levers - IDLE
Rudder – Full deflection opposite direction of the turn needle
Control Wheel – Rapidly forward
Rudder – Neutralize after rotation stops
Control wheel – Pull out of dive w/ smooth, steady back press
Low Altitude Windshear
1) Intentional Spins
1) Power – Maximum Allowable
2) Attitude – Set and Hold Approximately 15° Nose Up
3) Gear – UP
2) Aerobatics
4) Flaps – Maintain Current Setting
Prohibited Maneuvers