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05-02-2007, 08:40 AM
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Join Date: Nov 2005
Posts: 452
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RV-7 vs RV-8 aileron response
I flew the 8 a little bit the other day and it seemed to me the ailerons are lighter and roll quicker than the 7 . As this is the first in a 8 but have quite a bit of time in a 7 , I am still deliberating if it was my imagination.
I must say it really felt nicer than my 7. Was I imagining it ?
EJ
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05-02-2007, 09:17 AM
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Join Date: Mar 2006
Location: Deadwood, SD
Posts: 89
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Center of mass
With two folks sitting in tandem (vs side by side) the center of mass will be closer to the roll axis. Seems like it should take less force to start/stop a roll.
MikeJ
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05-02-2007, 09:27 AM
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VAF Moderator / Line Boy
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Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,247
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I can't speak to a 7, but I have flown two different -6's in the past month, and was actually surprised at how light an nimble they felt in roll compared to my -8. Not that the -8 is heavy mind you.... 
__________________
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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05-02-2007, 09:30 AM
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fugio ergo sum
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Join Date: Apr 2006
Location: Carlsbad, NM
Posts: 1,912
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Quote:
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Originally Posted by rv72004
I flew the 8 a little bit the other day and it seemed to me the ailerons are lighter and roll quicker than the 7 ...
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I wonder if the stick lengths are the same? A shorter stick is going to require higher forces.
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Larry Pardue
Carlsbad, NM
RV-6 N441LP Flying
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05-02-2007, 10:39 AM
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Join Date: Mar 2005
Location: ...
Posts: 2,049
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Trailing edge radius on the aileron would probably have a bigger effect than probably anything else, right?
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Dan Checkoway RV-7
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05-02-2007, 01:51 PM
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Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,265
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I agree with Dan.
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05-02-2007, 06:16 PM
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Join Date: Apr 2005
Location: KSLC
Posts: 4,021
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Quote:
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Originally Posted by dan
Trailing edge radius on the aileron would probably have a bigger effect than probably anything else, right?
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Some trailing edges on dedicated aerobatic aircraft, are squared off. As if you ran a saw, and cut the last inch off.
L.Adamson
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05-02-2007, 06:24 PM
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Join Date: Jan 2005
Location: ATL
Posts: 734
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This isn't the 7 vs 8 comparison you were looking for ... but I agree with Paul.
When I took my 7A up for the first time after transitioning a week earlier in Pierre's 6A, I thought... WOW! This thing is a whole lot slower in roll! The stick forces to me are a whole lot lighter, especially in roll, when flying the 6A. Perhaps it's because of the slightly shorter wing?
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05-03-2007, 07:08 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Ahem...ahem...
Billy Waters had a 6 and now flies an 8. He has often told me that the 6 was a much better flier. BTW, I didn't shorten my stick any. The Van's pistol grips are at the same height as the original stick. Experienced RV fliers will, to a man, tell you that the -4 is the best flier of the bunch.
Thanks, Scott,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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05-03-2007, 07:31 AM
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Join Date: Jan 2005
Posts: 335
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Yep!
Paul confirmed it, the -6A I had felt much quicker in roll than my -8. Although , if you get the CG back in the -8 by loading the rear, it helps the stick forces considerably. I can imagine that the -7 would be about like an -8 which is aft loaded. While still a great flying airplane, not quite as quick as a -6.
Kahana, you've flown all three, comments??
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Bill Waters
Based KCVC (Covington, GA)
RV6A - Gone, but not forgotten!
RV8 - Gone too, now winning races in the RV Gold Class!
RV4 - Flying!!!
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