Sky Power SP-55 Series — 55cc Single-Cylinder UAV Engine (TS/FI variants; ROS & Generator applications) - Main Image
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Sky Power SP-55 Series — 55cc Single-Cylinder UAV Engine (TS/FI variants; ROS & Generator applications)

Propulsion & Power Systems

Description

The SP-55 Series is a 55 cc, two-stroke single-cylinder internal combustion engine offered in carbureted (TS) and fuel-injected (FI) variants. Core functions: propulsion for small UAS (fixed-wing, helicopter, VTOL) and as a prime mover for small generator / hybrid-electric systems. Key specs: 3.9 hp (2.9 kW) @ 6500 rpm (TS), 4.1 hp (3.0 kW) @ 7000 rpm (FI), mechanical speed ranges up to 10,000 rpm, torque ~4.7–4.8 Nm. Standard features include twin ignition (2 spark plugs), rear output shaft (ROS) option for accessories, cast aluminum cylinder and CNC-machined crankcase.

About the Company

Sky Power GmbH (Sky Power International)

Sky Power (Sky Power GmbH) designs, manufactures and tests high-performance two-stroke and Wankel engines and UAV propulsion systems in Germany. They offer engineering, project development and main...

Core Information

Serving industries
Air
Product type
Propulsion Component
Subtype
Engine (2-Stroke)
Name
Sky Power SP-55 Series — 55cc Single-Cylinder UAV Engine (TS/FI variants; ROS & Generator applications)
Product status
Available

Product Classification

Platform compatibility
UAV Fixed-Wing UAV VTOL UAV Multirotor
Energy source
ICE Liquid Fuel (Gasoline/Kerosene)
Propulsion medium
Air
Voltage class
< 24 V

Electrical Specifications

Peak power (W)
3000
Minimum voltage (V)
6
Maximum voltage (V)
15
Continuous power (W)
2900

Mechanical & Physical

Materials
Aluminum Steel
Weight (g)
2580

Performance Metrics

Maximum torque (Nm)
4
Maximum RPM
10000

Power Source Details

Fuel type
Gasoline

Thermal & Environmental

Cooling method
Air (Natural)

Commercial

Availability status
In Stock