AR741 - 38 BHP
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The AR741 has an outstanding power-to-weight ratio combined with much longer life and better SFC than any alternative engine. It has been developed from the mature AR731 target drone engine to meet the needs of small surveillance-type UAV’s. The engine has successfully completed a 150 hour Far-33 type endurance test. DESIGN FEATURES • Exceptionally light power-to-weight ratio • Economical fuel consumption • Low cross sectional area • Low levels of vibration • Long life TECHNICAL SPECIFICATION Engine Type: Capacity: Power Output: Weight: Fuel Consumption: Vibration Level: Ignition System: Generator: Single rotor Wankel-type rotary engine 208cc chamber size 38bhp (maximum) at 7,800 rpm 23.5lbs (10.7kg) without generator 0.57 Ib/bhp/hr at maximum power, 052 Ib/bhp/hr at cruise Zero radial vibration. Peak instantaneous torque is 4 times mean Electronic contact-less magneto. RFI suppressed HT system Provision for mounting GEC/Plessey 28 volt, 900 or 1500 watt (or alternatives) NOTE Certain design features of the engine are covered by British, U.S. and other foreign patents. SPECIALIST PROPULSION SYSTEMS

See installation drawings - 74-1020 for standard pusher version SPECIALIST PROPULSION SYSTEMS