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The AR682 engine has been developed to power UAVs which have limitations on propeller diameter and thereby cannot use a reduction drive. It provides 75 BHP at 6000 rpm in an ultra-compact envelope. In 1994 this power unit with all accessories successfully completed a customer witnessed 150 hour FAR 33-type endurance test.
UAV DESIGN FEATURES
Exceptionally high power to weight ratio
Low Cross Sectional Area
Economical fuel consumption
Low levels of vibration
ENGINE TYPE Twin rotor Wankel-type rotary engine.
CAPACITY 294 CC per rotor.
POWER OUTPUT 75 BHP nominal at 6000 rpm.
WEIGHT 51kg for full wet running installed assembly. As illustrated including 2kW generator, throttle actuator, fuel pump and pressure regulator etc. Propeller not included.
DIRECTION OF ROTATION Anti-clockwise (looking at prop flange).
FUEL ConSUMPTION Typically 0.52 to 0.55lb/bhp/hr.
IGNITION SYSTEM Full duplicated 28V C.D. system with magnetic triggering firing twin spark plugs. R.F. sheilded.
FUEL TYPE AVGAS (100LL) or Regular grade (min 92 RON) Mogas automotive (leaded or unleaded).