Introducing the Compact SP-56 TS ROS Engine
The SP-56 TS ROS is a cutting-edge 2-stroke engine featuring a single cylinder with a displacement of 56 ccm,making it the most compact dual-cylinder option in the Sky power lineup. This innovative engine, crafted from the reliable components of the SP-28, is the latest addition to the series. It is favored by users operating small helicopter configurations in unmanned aerial systems (UAS) and also fixed-wing aircraft.
Enhanced Design for Optimal Performance
Designed with a carburetor and an advanced cylinder structure, the Sky Power SP-56 TS ROS ensures superior thermal stability. The generator can be conveniently attached to the rear output shaft. Due to its compact dimensions, the engine comes standard with one spark plug per cylinder. Its boxer-style dual-cylinder configuration delivers a powerful, low-vibration performance, suitable for applications weighing under 77 lbs (approximately 35 kg).
| Engine Type | 2-Cylinder Gas Engine |
| Displacement | 56 ccm / 3.42 cu in |
| Output Power | 4.6 HP / 3.4 KW @ 7000 RPM |
| RPM Range | 2200 – 10000 RPM |
| Weight | 5.54 lbs (2.52 kg) including ignition |
| Crankshaft Design | 4 ball bearings |
| Oil to Gasoline Ratio | 1:50 / 2% mixture |
| Operating Voltage | 6 – 8.4 V DC |
| Bore Size | 1.42 inch (36.00 mm) |
| Stroke Length | 1.10 inch (28.00 mm) |
| Torque Output | 4.6 Nm @ 6500 RPM |
