The SP-56 TS ROS is the newest, forged from using the proven SP-28 parts. The engine is equipped in the standard configuration with 1 sparkplug per cylinder due to the compact size. The dual cylinder Boxer engine style offers a low vibration power dense 2-stroke for the below ‘77 lbs or up to 35 kg’. The engine is used by customers in small helicopter config UAS as well as fixed wing platforms.
The cylinder is casted aluminum, and the crankcase is CNC machined to be able to adjust to customer specific requirements or mounting plate.
| Type | 2-Cylinder Gas Engine |
| Capacity | 56 ccm / 3.42 cu in |
| Power | 4.6 hp / 3.4 kW @ 7000 rpm |
| Speed Range | 2200-10000 rpm |
| Weight | incl. ignition 5.54 lbs (2.52 kg) |
| Crankshaft | 4 ball bearings |
| Oil/Gasoline ratio | 1:50 / 2 % mix |
| Operating Voltage | 6-8.4 V DC |
| Bore diameter | 1.42 inch (36.00 mm) |
| Stroke | 1.10 inch (28.00 mm) |
| Torque | 4.6 Nm @ 6500 rpm |
| Type | 2-Cylinder Gas Engine |
| Capacity | 56 ccm / 3.42 cu in |
| Power | 4.6 hp / 3.4 kW @ 7000 rpm |
| Speed Range | 2200-10000 rpm |
| Weight | incl. ignition 5.54 lbs (2.52 kg) |
| Crankshaft | 4 ball bearings |
| Oil/Gasoline ratio | 1:50 / 2 % mix |
| Operating Voltage | 6-8.4 V DC |
| Bore diameter | 1.42 inch (36.00 mm) |
| Stroke | 1.10 inch (28.00 mm) |
| Torque | 4.6 Nm @ 6500 rpm |
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