Sky Power International Products

The SP-275 TS ROS is the 2-stroke engine with twin spark and rear output shaft for the most varied applications with UAV, UAS

The following additional configurations can be offered:

• Generator and Controller
• Starter Generator and Controller

• Type: 2-Cylinder gas engine

• Capacity: 275 ccm / 16.78 cu in

• Power: 21.7 HP / 16 KW @ 6000 RPM

• Speed Range: 1500 – 10000 RPM

• Weight: 17.29 lbs (7.86kg)

• Crankshaft: 4 ball bearings

• Oil/Gasoline Ration: 1:50 / 2% mix

• Operating Voltage: 6-8.4 V DC

• Bore Diameter: 2.32 inch (59mm)

• Stroke: 1.97 inch (50mm)

• Torque: 27.9 Nm @ 4750 RPM

Two Stroke Engine SP-170 TS ROS

The SP-170 2-stroke dual cylinder 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 TS ROS is equipped with dual spark plugs per cylinder for redundancy and a rear output shaft for user adaptability. An optional starter generator can be included, allowing for hybrid functionality and increasing the operational capacity of this engine.

• Type: 2-Cylinder gas engine

• Capacity: 170 ccm / 10.37 cu in

• Power: 16 HP / 11.7 KW @ 6600 RPM

• Speed Range: 1500 – 8000 RPM

• Crankshaft: 4 ball bearings

• Oil/Gasoline Ration: 1:50 / 2% mix

• Bore Diameter: 2 inch (51mm)

• Stroke: 1.60 inch (41mm)

• Torque: 18.98 Nm @ 4750 RPM

The SP-110 TS ROS is the smallest 2-stroke engine with twin spark and rear output shaft  for the most varied applications with UAV, UAS

The following additional configurations can be offered:

• Generator and Controller
• Starter Generator and Controller

• Type: 2-Cylinder gas engine

• Capacity: 110 ccm / 6.7 cu in

• Power: 9.4 HP / 6.9 KW @ 6600 RPM

• Speed Range: 1500 – 10000 RPM

• Weight: 8.80 lbs (4kg)

• Crankshaft: 4 ball bearings

• Oil/Gasoline Ration: 1:50 / 2% mix

• Operating Voltage: 6-8.4 V DC

• Bore Diameter: 1.77 inch (36mm)

• Stroke: 1.37 inch (28mm)

• Torque: 11 Nm @ 6600 RPM

The single cylinder engine of the SP-55 series is designed with twin spark plugs and can be equipped with fuel injection system.The rear output shaft and the position of the carburetor or the fuel injection on the side, make this engine to one of the mostcompact 1-cylinder engines on the market. Because of the rear output shaft, a generator can be mounted on the back of the engine.

• Generator and Controller
• Starter Generator and Controller

• Type: 1-Cylinder gas engine

• Capacity: 55 ccm / 3.35 cu in

• Power: 4.1 HP / 3.0 KW @ 7000 RPM

• Speed Range: 2200 – 8000 RPM

• Weight: 6.08 lbs (2.76kg)

• Crankshaft: 4 ball bearings

• Oil/Gasoline Ration: 1:50 / 2% mix

• Operating Voltage: 12-15 V DC

• Bore Diameter: 1.77 inch (36mm)

• Stroke: 1.38 inch (28mm)

• Torque: 4.8 Nm @ 5500 RPM

Two Stroke Engine SP-28 CR

The 2-stroke single cylinder SP-28 CR with 28 ccm is the longest standing engine in our lineup and well known by industry veterans for its robustness and longevity for many years. The Sky Power SP-28 CR is still our most requested system and particularly suited for fixed wing aircraft on the upper end of the “below 55 lb” or “up to 25 kg” class UASs. The 3W-International SP-28 CR engine is equipped in the standard configuration with one spark plug and a single ignition unit. The carburetor is rear (CR) mounted.

The cylinder and crankcase are casted aluminium and have been manufactured in its current form for over a decade. One customer is running this propulsion system for 10+ years and accumulated more than 1,000,000 flight hours, it is a reliable work horse in all operational scenarios.

• Type: 1-Cylinder gas engine

• Capacity: 28 ccm / 1.71 cu in

• Power: 2.2 HP / 1.6 KW @ 6600 RPM

• Speed Range: 2500 – 10000 RPM

• Weight: 2.95 lbs (1.34kg)

• Crankshaft: 3 ball bearings

• Oil/Gasoline Ration: 1:50 / 2% mix

• Operating Voltage: 6-8.4 V DC

• Bore Diameter: 1.42 inch (36mm)

• Stroke: 1.10 inch (28mm)

• Torque: 2.3 Nm @ 6600 RPM