SP-55 FI TS Hybrid for a “generator only” application

The SP-55 single-cylinder engine is one of our longest standing engines and comes in different versions. The new version, the SP-55 FI TS hybrid is designed to generate electricity for unmanned aircraft systems. The engine has twin spark plugs and is equipped with a fuel injection system. With this new engine, we want to address users of solely electric propulsion technologies who are looking for an efficient generator solution not only for unmanned flight systems but also for other applications.

  • Controllable via CAN (optional generator start input)
  • Battery voltage 36-75V (nominal 48V)
  • Max. power 2KW @ 48VDC (40A@MSL)
  • Generator current sensor
  • External load current sensor (via CAN)
  • Temperature monitoring
  • Overload derating
  • Programmable battery charging current
  • Standalone operation
  • Automatic throttle regulation due to external load current sensor
  • Advanced combustion engine start
Dekoratives Bild

Related News

Published: October 29, 2025
European Engine Excellence for UAV Mission Reliability
SkyPower Production
Sky Power International strengthens its position as a European leader in UAV propulsion. With long TBOs, fuel-efficient engines, and 24/7 customer support, Sky Power ensures maximum reliability for NATO and DoD-class UAVs.

Read more →

Published: October 17, 2025
Sky Power’s Playbook for Longer-Range ISR and Mission Readiness (Interview with CEO Karsten Schudt)
Sky Power CEO Karsten Schudt
Sky Power International’s CEO Karsten Schudt outlines how rising intelligence, surveillance, and reconnaissance (ISR) demands, hybridization, and geopolitics are reshaping UAV propulsion and why engines aren’t a commodity but a strategic enabler.

Read more →

Published: October 7, 2025
Engine break-in by Sky Power International
Break In-Tests
Proper engine break-in is essential to ensure maximum performance, reliability, and durability of UAV propulsion systems. By following proven procedures, operators can reduce wear, stabilize combustion, and extend engine life, making break-in a critical step for mission success.

Read more →

Published: September 23, 2025
SP-170 FI TS GEN successfully passes FAR33 endurance test
SP-170 FI TS GEN on the Sky Power test bench
Sky Power’s SP-170 FI TS GEN two-stroke boxer engine has successfully completed a comprehensive FAR33 endurance test. 150 hours of continuous operation confirm its robustness, airworthiness, and long-term performance for UAV systems.

Read more →

Published: August 8, 2025
GöKHUN Unmanned Aerial System lift off with Sky Power engines
GoeKHUN Unmanned Aerial System (UAS) der Firma ESEN, ausgestattet mit einem modernen SP 210 FI GS 2-Takt-Motor von Sky Power International
The GöKHUN unmanned aerial system (UAS) from Turkish company ESEN is a tactical VTOL drone system equipped with a modern SP 210 FI GS 2-stroke engine from Sky Power International.

Read more →

Published: April 10, 2025
Innovative UAV propulsion solutions for ISR missions at XPONENTIAL 2025
The surveillance of critical infrastructure, such as ports or oil terminals, is increasingly being carried out using powerful UAVs.
Sky Power will be presenting their latest engine developments and propulsion solutions for ISR missions at the XPONENTIAL 2025.

Read more →

Skypower brochure cover

Sky Power brochure

Download our newest brochure for free.

Please fill in the fields below to receive an E-Mail containing the brochure download link.
Name
Company
Email address
Privacy policy
Position: 0
Slide to the 5 to confirm that you are not a bot.
Name
Company
Email address
Privacy policy
Position: 0
Slide to the 5 to confirm that you are not a bot.