Type: reed valve controlled boxer engine with electronic fuel injection
Displacement: 183 cm³ (11,5 cu in)
Performance (max): 11 kW (15 HP)
Cooling: Air cooled
Weight: 5700 g (12.5 lb) with exhaust system, sensors and wiring harness, +600 g (1.33 lb) for Subcomponents (ECU, ignition system, fuel supply, ...)
Starting device: Extern by propeller hub or by optional startergenerator
Options: 1 kW generator incl. drive system and mounting [+ 800 g/1,76 lb], regulator for generator incl. starter [+ 600 g/1.33 lb], two exhaust systems available, oil injection, startergenerator up to 2 kW, more Customizations possible on customers demands
The 4201 is an air-cooled, reed valve controlled 2-stroke boxer engine with electronic fuel injection. It utilizes advanced closed loop control to optimize performance for extreme environmental conditions (hot/cold/altitude). It also has the option to use a reduction drive. Based on the worldwide well known S1211 and S1212 engines which has been proven in theatre, the new 4201 engine has been updated with the latest engine technology to create a new off the shelf propulsion system which meets the demanding requirements of the unmanned aerial vehicle market. The engine features automatic altitude and temperature compensation enabling reliable start and operation in a wide operating range. Temperature: -40 to +60° C (-40 to +140° F). Altitude: 0 - 6000m (0 - 20,000 ft.).