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Randy,
If you use Tracy's 2.85 redrive and turn 7500 to 8000 rpm 240 HP should be obtainable with a good intake and exhaust. Note that there is much disagreement as to what the correct lengths should be for both the intake and exhaust - be prepared to experiment. Also, no one that I am aware of is doing 'negative G maneuvers' with a rotary and I'm not sure how you would configure the oil system. Does anyone here know for sure?
Ken Powell
Bryant, Arkansas
501-847-4721
-------------- Original message --------------
> Gentlemen,
> I am building an acro rated single seat biplane that the designer
> has limited the max. engine size to IO-360. I am surmising that this
> engine limitation is based on weight and airframe maximum speed. I have
> decided to use rotary power and am slowly developing a plan as to what
> I will use. I am looking for a little more help going "vertical." The
> rotary weight (less) will be a bonus. I am not an engineer and am not
> even related to one so my question:
> Can I go to a P-port 2 rotor in the 230-240 hp range if I do not
> exceed the max. airframe speed.
> Thank you,
> Randy
>
>
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
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