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Is a biplane best fit for P-11?

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Old 12-10-2009 | 09:36 PM
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Default RE: Is a biplane best fit for P-11?

ORIGINAL: DaveL322

The 1/4 loop entry, 1/2 loop in the middle (with the integrated 1/2 roll), and the 1/4 loop exit should all have the same radii. Not easy.
Very difficult to make the bottom M tight integrated with a 1/2 roll.
Is a biplane performing tight KE loop better?

And of course there should be a defined straight line after the M before the 1/2 Rev Cuban turnaround. Very difficult to fly this maneuver at <175 meters geometrically correct AND have it look smooth.
Attention must be paid for this maneuver since exceeding 175 meters would be downgraded.

Eric
Old 12-11-2009 | 10:53 AM
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Default RE: Is a biplane best fit for P-11?

ORIGINAL: ericng

Is a biplane performing tight KE loop better?
Depends on the biplane.....planes with the greatest amount of side area (all other things equal) should be able to make the tightest KE loop.....this is not necessarily a biplane.




ORIGINAL: ericng

Attention must be paid for this maneuver since exceeding 175 meters would be downgraded.
>175 meters SHOULD be downgraded....doesn't mean it will be.....and the new sequences very clearly favor presentation further out than the prior sequences.

Regards,

Dave
Old 12-11-2009 | 12:36 PM
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Default RE: Is a biplane best fit for P-11?

A Biplanes rudder authority comes from more than just side area. The arrangement of the wings funnels air or does some other voodoo magic to increase rudder authority. I personally have not flown the sequence yet because of school getting in the way, but I'm curious/excited to get started on it and see where the biplane comes in handy.
Old 12-11-2009 | 08:58 PM
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Default RE: Is a biplane best fit for P-11?

Also, relatively less wing span and with the flat interplane struts provide more rudder authority to yaw the fuselage during KE loop from downward to upward.

Eric

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