[Wing] flap attach

[Jim Oke]

Pat;

As others have said, this is the usual RV-6 builder's solution and, in fact, 
is what I did. Works just fine once the hinge pin is in place.

One caution is to make sure the hinge pin comes out and goes in fairly 
easily. By this I mean keep the hinge line straight and spaced to allow the 
flap to rotate to at least 60-70 degrees from streamlined. Apply a suitable 
lubricant, make sure the hinge eyelets stay clear of paint and do not get 
damaged when riveting the hinge segments to the wing and flap.

Situation is that due to the way the forward curved upper surface of the 
flap contacts the top wing skin, you will not have much access to the flap 
hinge to insert a long, flexible, pin. It helps to be able to lower the flap 
to as close to 90 degrees as you can get it but this will show up any 
misalignment in the hinge. "Retracting" the flap allows the pin to move more 
easily but then you have no access!

In extreme situations, some sort of arrangement with wooden guide sticks and 
such will be needed to get the pin to slide into place but once you have the 
wings on the fuselage this won't work. A couple of helpers when bent nose 
longnose pliers and many #$%& words can be needed to persuade the pin into 
place. As in a lot of places on an RV, a friend with skinny fingers about 8 
inches long would be really nice to have. (Have you done the wing bolts yet 
? Are you building a -6A for the extra fun involved here?)

This is not to discourage anyone from using this method, just to forewarn of 
some of the potential problems involved.

Good luck and happy building!

Cheers, Jim Oke
RV-6A, C-GKGZ
Wpg., MB



----- Original Message ----- 
From: "pat morency" <acwrench at yahoo.ca>
To: <wing at vansairforce.org>
Sent: Thursday, February 24, 2005 11:23 PM
Subject: [Wing] flap attach


> When attaching the flaps on an rv-6 is there a problem
> splitting the hinge pin in two and installing it from
> center of the flap out towards the ends of the flap.
> As I see it you could remove the flap easier in
> service. Suggestions?
> Pat in Calgary
>
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