Jet ski engines in experimental aircraft?

twistair

Living in the Skies
Joined
Nov 24, 2003
Messages
1,161
Location
Kronshtadt, Russia
Aircraft
none own :( currently flying Calidus mostly
Total Flight Time
Don't know exactly, ca. 3000 hours
I was recently asked by a local homebuilder about using jet ski engines for autogyros. Is there any bad or good experience in this? Especially with powerful (~200 hp) engines?
My feel is that they can be respectively heavy and can have certain cooling system problems.

Any inputs?
 
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