The 3521 autopilot is designed for small fixed-wing airframes with a gross weight of 1~4 lbs.The 3521 uses firmware from the proven 3500 and the PCB features the latest LGA sensors, resulting in a compact 2"x1" form-factor. All IMU and airdata sensors are located on a single, small PCB. The GPS & radio-modem are hard-wired for reliability and easy installation. The 3521 is compatable with all UNAV GCS software and the feature set supports proposed FAA guidelines for Group II sUAS operations.
PCB size: 2.0” x 1.0” x 0.4” (51mm x 26mm x 10mm)
PCB weight: 0.4oz (10g)
Power: 4.0v to 7.0v @ 180ma (AP+GPS+Rmodem)
RC channels: ( 4 ) input, ( 5 ) output
RC interface:compatible with 3v & 5v RC receivers, digital & analog RC servos
Telemetry: 9600b, full-duplex data link ( capable of uploading data in flight )
Sensor Calibration: stored in FLASH
Data Logging: 20 channel FDR @ 1Hz
Fault detection: lost Link, lost GPS & sensor failure
GPS: 32ch @ 5 Hz ( pre-wired )
Radio modem: XBeePro set ( 1 mile range )
altitude resolution: 0.1 m
airspeed resolution: 0.1 kts
Recommended for fixed-wing airframes: 1~4 lb
Capable of controlling airframes with or without ailerons, V-tails and flying wings.
The ground control software requires a laptop computer running WIN7 or WINXP. This autopilot system has been classified 9A012b by the US Commerce Department and requires an export license ( except Canada ). This autopilot system is limited by software to a maximum range of 295 km. This autopilot hardware has been designed to comply with DO160
This autopilot system is not approved for military export.