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The AR731 has the highest power-to-weight ratio of any rotary engine in the world. It has been specifically designed and developed to be the ultimate engine for small target drones and short-life UAV's. TBO is 10 to 50 hours depending on duty cycle.
This remarkable power unit offers many advantages over previously competitive twin cyclinder 2-stroke engines.
UAV DESIGN FEATURES
Exceptionally high power to weight ratio.
Small frontal area concentric to propeller axis.
Low fuel consumption (allowing greater range of payload).
Low levels of vibration.
Both tractor and pusher versions available.
ENGINE TYPE Single rotor Wankel-type engine.
CAPACITY 208cc chamber size.
POWER OUTPUT 38bhp at 7,800rpm
WEIGHT 21.7lbs (9.9kg)
VIBRATION LEVEL Zero radial vibration
IGNITION SYSTEM Electronic contact-less megneto
FUEL TYPE Mogas regular grade or AVGAS (100LL)