Ducted Fan Engine

[ducharme at eiss1.psf.ge.com]

Mitsu16v at aol.com wrote:

>Hmmm.. how interesting... I seem to have reinvented the wheel... I have
>thought of using either a model jet airplane ducted-fan engine, or highspeed
>constant duty electrical motors through gear reduction, to turn a turbo on my
>Eclipse... 
>There I go re-inventing the wheel again I suppose :>   

>Not bad for someone with no formal engineering school though, eh??   

>:::tooting my own horn shamelessly::::::::

>Soooo.. whad'ya think?? 

As far as using a ducted fan engine is concerned, forget it!  These engines run 15% - 25% nitro content alcohol-based fuel at 2-3 ounces per minute, consume
glow plugs (one per ten minute flight), have a nasty habit of flaming out, and 
if not carefully cleaned up after each session, develop rust deposits in their
crankshaft bearings that often lead to catestrophic engine failure.

A constant-duty electric motor would be a better choice - provided your
electrical system can handle it.

Cliff Ducharme