L550EF DESCRIPTION: Four-cylinders,two-stroke boxer engine,air cooling,electric fuel injection system,suitable for industrial use. TECHNICAL DATA: Power: 53hp(39kw)@7500rpm Displacement: 548 cm3 Weight: 15.0 kg Fuel: 90 RON (unleaded) / AVGAS 100 LL - oil mixture 1:25 for mineral oil or 1:50 for synthetic oil Optional accessories:Electric starter,Shielded ignition leads,Exhaust stacks (stainless steel 150mm long, 4 needed),Generator 28V/1200W,Generator coupling kit (engine side),Certificate of Conformance / Test - run USAGE: UAV(Fixed wing,Helicopter,Multirotor and airship),Manned Aircraft. OTHER INFORMATION: We can also provide propellors,generators and other spares for all our engines.