Sky Power GmbH unveils newly developed 2-stroke engine



Sky Power GmbH, which manufactures 2-stroke combustion- and Wankel engines for UAS and hybrid applications, has unveiled its newly developed 2-stroke engine, the SP-210 FI TS.

Based on the same engine concept as the company’s SP-110 FI TS, the SP-210 FI TS has a “max. 8,2 kW at 5000 rpm,” Sky Power says.

The SP-210 FI TS has a system carrier just like the SP-110 FI TS—although it is optionally offered without a system carrier as well—which is mounted above the cylinders with the two electronic systems of the HKZ215 ignition, as well as the engine injection system.

The injection system and the system carrier are screwed firmly together with the engine.

Sky Power says that all data lines of the sensors are bundled on the system carrier. They are responsible for gathering engine data at different measuring points, and transmitting them to the ECU030.

The company notes that if there are faults, the system carrier can be completely dismantled, together with the injection system, and then, a new system carrier with all the modules and data cables can be mounted and screwed together. The engine is operational again in just minutes thanks to the passive ignition system, which is controlled by the ECU030.

“Consequently, the engine is extremely user- and maintenance friendly,” says Karl Schudt, CEO of Sky Power GmbH.

Sky Power says that the engine is equipped with plug connectors “from racing as standard,” and plug connectors according to MIL specifications are also a possible option.

The system carrier can be left out if the customers makes this request. In this instance, though, longer cables are required, and the integration of the engine is more difficult.

Sky Power notes that it placed an emphasis on making sure that the SP-210 FI TS runs extremely smoothly, much like it did with the SP-110 FI TS. Another objective was to achieve a fuel consumption as low as possible.

“Just like with the SP-110 FI TS, our theoretical calculations proved to be true. The dynamometer tests verified the fuel requirement specified by us,” Schudt explains. “At 5000 rpm this is about 480 gr/HP/hour. Consequently, with this engine we will also satisfy the demands of our customers, who are searching for efficient and fuel-saving drive solutions.”

The SP-210 FI TS is available as a petrol engine, and a Heavy Fuel (HF) variant is expected later on this year.