The 3W International Wankel Rotary UAS Engine is a hybrid electrical engine with a compact design and an outstanding power-to-weight ratio.
Therefore, the engine allows a higher payload capability. With the hybrid-boost power, additional 15KW, depending on on-board battery capacity, are optionally available. This additional power improves take-off performance significantly.The SP-180 SRE hybrid can run with gas or Heavy Fuel (HF). 3W International offers a standard fuel injection and an optional high-pressure fuel injection (HPI).
The cooling of the engine is guaranteed by water cooling of the housing and oil cooling of the rotor (active cooling), allowing reliable operation in certain challenging environmental conditions.
SP-180 SRE Hybrid (Wankel engine)
> TS – Twin Spark, FI – Fuel Injection, HF – Heavy Fuel, ROS – Rear output shaft
|Engine||3W-180 SRE Hybrid|
|Type||wankel rotary UAS engine|
|Weight||6.80 kg/14.99 lbs|
|Weight with Generator||9.50 kg/20.94 lbs|
|Power||20KW/27.5HP @ 6000rpm|
|High Power Version||28KW/38.5HP @7500rpm|
|Max-Torque||32Nm @ 6000rpm / 36Nm @ 7500rpm|
|Power-to-Weight-Ratio||5.66HP/kg / 2.57HP/lbs|
|Fuel consumption||340g/kW @ max. load|
Kerosin (only with HPI injection)
|Injection||standard mainfold injection
HPI (high pressure) injection optional
|Cooling||Water cooled housing & Oil Rotor cooling