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08-09-2006, 12:17 PM
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Join Date: Jan 2005
Location: South Africa, Johannesburg
Posts: 1,313
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Aileron to Flap Gap???
Hi Guys,
I am about to drill my flap with hinge to the wing on my RV7, but for the life of my can't find any dimensions for the gap between the flap and the aileron.
It is not like the hinge is prepunched?? What am I missing here?? Where am I not looking?
Thanks in advance.
Kind Regards
Rudi
__________________
Rudi Greyling, South Africa, RV 'ZULU 7' Flying & RV 'ZULU 10' Flying
"Science, freedom, beauty, adventure...what more could you ask of life? Aviation offers it all" - Charles A. Lindbergh
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08-09-2006, 01:05 PM
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Join Date: Oct 2005
Location: Portland, OR
Posts: 180
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I never found it in the plans either, but supposedly an RVator mentioned that it should be 1/4". I choose 7/32" myself. Other builders have used as small as 3/16", but I was worried about the clearance to the aileron attach bolt head. You can see my flaps page for pictures:
http://jmjula3.home.comcast.net/flaps.htm
__________________
James Jula - CFI/II/MEI - N713JL RV-7A First Flight 10/12/15 - "What is chiefly needed is skill rather than machinery." Wilbur Wright, 1902
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08-09-2006, 01:15 PM
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Join Date: Jun 2006
Location: Salem, Oregon
Posts: 54
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Aileron/Flap/Wing Tip spacing
It's on DWG 9. 1/4" for each
Bruce Reynolds
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08-09-2006, 06:42 PM
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Join Date: Jan 2005
Location: Chandler, AZ
Posts: 2,904
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Gap
Quarter inch on the plans.
__________________
Darwin N. Barrie
Chandler AZ
www.JDair.com
RV-7 N717EE-Flying (Sold)
RV-7 N717AZ Flying, in paint
EMS Bell 407,
Eurocopter 350 A-Star Driver
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08-09-2006, 11:09 PM
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Join Date: Jan 2005
Location: South Africa, Johannesburg
Posts: 1,313
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Thank you very much guys, I must be blind I did not notice it..duh 
I must have selective builders block, well my wife says I have it for sure. When I think about the plane and she talks, well you know, I don't hear
__________________
Rudi Greyling, South Africa, RV 'ZULU 7' Flying & RV 'ZULU 10' Flying
"Science, freedom, beauty, adventure...what more could you ask of life? Aviation offers it all" - Charles A. Lindbergh
Last edited by RudiGreyling : 08-09-2006 at 11:11 PM.
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08-10-2006, 06:10 AM
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Join Date: Jan 2005
Location: KPYM
Posts: 2,686
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Rudi, Don't feel badly... I had to phone a friend on that one too!
James is right about the the aileron bolt clearance being the issue. Mine is a tad closer too.
 CJ
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RV-7 Flying - 1,200 Hours in 5 Years!
The experiment works!
TMX-IO-360, G3i ignition & G3X with VP-X
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08-10-2006, 06:16 AM
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Join Date: Jun 2005
Location: UK and nr. Hannover, N Germany
Posts: 11
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Gap
Hi all from Uk that is on lockdown for commercial flying as we speak !
Re the 1/4 " gap - when I did mine I used the trick of duct taping a 1/4" drill perpendicular to the end of the aileron.
This worked very well for maintaing the gap without having to keep checking that the dimension was correct - a tip that I think I picked up from the forums.... 
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Flydjd 2
( UK signature for FLYDJD in Germany )
RV7A QB
(but possibly slowest builder in Europe  - still)
2020 Donation made
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08-10-2006, 08:36 AM
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Join Date: Jan 2005
Location: Chandler, AZ
Posts: 2,904
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Blind Spots
Quote:
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Originally Posted by RudiGreyling
Thank you very much guys, I must be blind I did not notice it..duh 
I must have selective builders block, well my wife says I have it for sure. When I think about the plane and she talks, well you know, I don't hear
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Don't feel bad. There are times where everything runs together on the plans. Especially, when you have to go to several plan sheets while working on the same part.
Wouldn't it be nice if they Van's would go back and revamp the plans to make them like the 10.
__________________
Darwin N. Barrie
Chandler AZ
www.JDair.com
RV-7 N717EE-Flying (Sold)
RV-7 N717AZ Flying, in paint
EMS Bell 407,
Eurocopter 350 A-Star Driver
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08-10-2006, 09:25 AM
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Join Date: May 2006
Location: Houston
Posts: 2,012
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Looks like the number's 1/4". Mine's in that vicinity and looks/works just fine. Point of my comment is that I've heard people talk about closing up these attachment gaps for appearances, performance, etc. Be *very, very* careful with (closing) any control surface clearances. It might work just fine on the ground, but under flight loads, close and cause control surface binding. haven't ever experienced that, but have read about the consequences. I believe it could ruin your whole day!
2 cents
Bryan
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Bryan
Houston
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08-10-2006, 10:02 AM
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Join Date: Jan 2005
Location: Boise, ID
Posts: 1,007
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Rudy,
While drilling the hinge half to the wing, take care that the hinge remains straight as you approach the wing root. The flap brace steps up onto the spar doubler-doubler and unless you form the angles just right it will tend to push the wing skin down (away from the cord), taking the hinge with it, possibly pushing it aft, also, and misaligning the eyes. I drilled the hinge to the prepunched skin holes, keeping it parallel to the trailing edge, intentionally excluding the brace from the clamp-up, then came back and clecoed in the brace, tweaking it as required to mate with the skin/hinge holes. Straight as a die on airplane #2; airplane #1 requires a bit of cussing to shove the pin through the (slightly misaligned) eyes.
John Siebold
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