Sky Power
Bad Homburg, Germany
+49 (0) 6172-2654258
www.skypower.online

Sky Power’s SRE180 test stand provides a test solution for the Wankel engine SP-180 SRE hybrid. Due to the compact design the whole test stand is well suited for portable use.

Apart from the electrical system, which might be different in custom applications, the SRE180 test stand contains all the main parts of the SP-180 engine system. To run the test stand, a 48 VDC power supply is needed. In addition to the engine and its attachments, the test stand includes a fuel tank, a propeller including protection cage, the exhaust system, a starter generator, the engine control unit (ECU), and the associated software. All parts are mounted and covered on a chassis equipped with wheels.

The actual engine is an SP-180 SRE hybrid. This is a hybrid electrical engine with a compact design and an outstanding power-to-weight ratio. “Therefore, the engine allows a higher payload capability. With the hybrid-boost power, an additional 15 KW, depending on on-board battery capacity, are optionally available. This additional power improves take-off performance significantly.

Adequate cooling of the engine is guaranteed by the water and oil cooling system, allowing reliable operation in certain challenging environmental conditions. With this configuration, the engine enables new drive and application possibilities, which customers can now test on their own premises. That is why the test stand was designed to be easily shipped and quickly assembled on site in just a few steps.

The test stand can demonstrate the same modes as the SP-180 SRE hybrid too. Beside the combustion mode, the test stand can demonstrate an electrical mode. Therefore, the test stand is equipped with an integrated generator to charge additional battery packs. For that reason, the test stand can run in a hybrid-boost power mode too, combining the combustion engine and the generated electric energy.

A test stand for demonstrating only electrical power generation is currently in design. The test stand can be purchased, as well as rented for on-site evaluation as needed.

Sky Power GmbH is a manufacturer of 2-stroke combustion and Wankel engines for UAS (Unmanned Aerial Systems) and hybrid applications. Besides in-house development and manufacturing, Sky Power produces all of its engines in Germany.

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Aerospace & Defense Technology Magazine

This article first appeared in the June, 2021 issue of Aerospace & Defense Technology Magazine.

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