Drone Engines

[Passport1]

This is an engine used in the drones currently in the news. Not wanting to get into a discussion of global events. It looks to me like the engineers/manufacturers poached the specs from an early VW aircooled design. Has 50 HP and the drone has ~1600 mile range. Might be fuel injected.

What kind of fuel does it use?
Likely oil in the crankcase?
The entire aircraft costs $193K and carries an 80 lb payload.

Anybody seen one of these engines?

 

[Skippy722]

That’s a picture of a Limbach engine, out of Germany. It’s a 2 stroke air cooled engine that runs on 90 octane and 50:1 synthetic 2 stroke oil.

This link will bring you to the data sheet for that engine, it’s not an actual download.

https://limflug.de/downloads/datasheets/L550-EF-datasheet-en.pdf

 

[ammolab]

That’s a picture of a Limbach engine, out of Germany. It’s a 2 stroke air cooled engine that runs on 90 octane and 50:1 synthetic 2 stroke oil.

This link will bring you to the data sheet for that engine, it’s not an actual download.

https://limflug.de/downloads/datasheets/L550-EF-datasheet-en.pdf

7000rpm? Gearbox propeller reduction? Belt drive?

 

[Skippy722]

7000rpm? Gearbox propeller reduction? Belt drive?

That I’m not sure on, I just typed “50hp aircraft engine” into DuckDuckGo and that was one of the first images.