Magnetometer II
starboard wingtip
250ltr Wingtip
Fuel Tank
Channel 6
Channel 5
Radar receiver antennas
under starboard wing
Channel 4
Channel 2
Pitot Tube
Pilot Guidance Unit
General Purpose
Inverter
PGU VGA
Splitter
500 ltr
Auxilliary
Fuel Tank
GPS Antenna I
MAG
GPS
LIDAR
GRAV
Fluxgate
Magnetometer
Radar
GPS Antenna II
Laser Scanner
AIRGrav**
C of G
Pilot Guidance Unit
Radar Transmitter
Inverter
provided by LDEO
provided by KBAL
Twin Otter duration/range
Basic Configuration:
3.5h/890km*
Including Tip-Tanks:
4.5h/1145km*
Including Tip-Tanks and
500ltr cabin Auxilliary Tank 5.5h/1400km*
Channel 2
*Note: endurance excludes 1/2h reserve
Channel 4
Channel 5
Radar transmitter antennas
under port wing
** Note: INS Pitch, Roll and Yaw data supplied
by the Airgrav gravimeter
Channel 6
250ltr Wingtip
Fuel Tank
Figure 2: Plan view of the LDEO Aerogeophysical Installation
on KBA Twin Otter SJB
Magnetometer I
port wingtip
SJB_Instrumentation_layout_v4.1
Frearson/Studinger 2009