phillip wrote:

It's pretty simple. I guess described as one ring and two pinion

gears.

I left out bearings and seals. I'm not an artist. :)

Thanks Paul

Phil

Sure something like that will work. The devil is in the details of

course.

Paul Lamar

Prop load om power boats is very similar to aircraft - ie speed
and rpm are roughly cubic functions. on single engine operation
both rpm and speed would drop to about 80 percent of top
since you will be overproped for the single ongine and it will
also be lugged down on the power curve limiting it's
max power output.  Many power boats are going to counter rotating
props - using each engine for each rotation (like the South American
canard installation) will let the remaining engine develop full HP -

Vance

Could I steer this thread towards the same concept, only in a coaxial
helicopter? :)

My (shade tree mechanics degree) says two engines in a coaxial
configuration could be interesting. :) If one engine *could* provide
enough power to maintain altitude, couldn't you toss the need for
autorotation? I'm ASSUMING the reliability of the rotary built for
proper aircraft use.

I know something along this line has been tried by the Nolan brothers
(two small two strokes)...I have a different twist in my head. I need
massive help!

Thanks guys
Phil

 
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