The SP-170 HF FI TS ROS is a fuel injected 2-stroke engine with twin spark and rear output shaft and starter generator, suitable for a variety of UAV and UAS applications.
The SP-170 2-stroke dual cylinder heavy fuel engine with 170ccm is the mid range propulsion system designed for aircraft from 60-80kg MTOW. This engine size has successfully completed 100s of hours of maritime operations for EMSA and proved itself in all associated operating conditions.
The SP-170 fuel injected engine is equipped with dual spark plugs per cylinder for redundancy and a rear output shaft for user adaptability.
The EFI system is designed ‘in house’ and offers customers a complete class leading turnkey solution. Fuel efficiency optimisation is at the core of capabilities, with multiple variables monitored continuously for enhanced performances, whatever the mission. All communication and engine health monitoring are performed via the ECU. Relevant information is made available via can-bus to the customer’s flight controller and telemetry systems.
Fuel injected engine for heavy fuel includes ignition, ECU, fuel pump, sensors, harness, preheating system, stainless-steel exhaust system, starter-generator and controller.
| Type | 2-Cylinder Gas Engine |
| Capacity | 170 ccm / 10.37 cu in |
| Speed Range | 2000 – 7000 RPM |
| Weight | without subcomponents 20.24 lbs (9.2 kg) |
| Crankshaft | 4 ball bearings |
| Oil/Gasoline ratio | 1:50 / 2% mix |
| Operating Voltage | 12.5 – 16 V DC |
| Bore diameter | 2.01 inch (51.00 mm) |
| Stroke | 1.61 inch (41.00 mm) |
| Torque | 18.19 Nm @ 4750 RPM |
