Veetail88
Well Known Member
Help!
I'm attaching the horizontal stab on my RV-8.
Plans say to align the stabilizer yaw wise, to measure from the tip of the stab to a point on the tail cone on each side, and to position the stab assembly within 1/4" tolerance side to side.
This seemed like a pretty big allowance to me. When I set this dimesion equal on each side the center of the assembly is very much off center to the tail cone. (see attached picture)
When I center the assembly at the attach point, the tips are out exactly 1/4"!
This leads me to believe that this is common and thus the 1/4" allowance, but it just doesn't seem right to me! In fact, it really doesn't seem possible! What dimension is out of whack? Is it possible that the tail cone itself is not true? This is a QB kit, so I don't take credit for that issue!
What is the norm here? I'm holding off drilling the front spar attach points until I'm comfortable that the 1/4" is really ok.
As usual, any help is greatly appreciated!![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
By veetail88, shot with Canon PowerShot SD850 IS at 2009-03-24
I'm attaching the horizontal stab on my RV-8.
Plans say to align the stabilizer yaw wise, to measure from the tip of the stab to a point on the tail cone on each side, and to position the stab assembly within 1/4" tolerance side to side.
This seemed like a pretty big allowance to me. When I set this dimesion equal on each side the center of the assembly is very much off center to the tail cone. (see attached picture)
When I center the assembly at the attach point, the tips are out exactly 1/4"!
This leads me to believe that this is common and thus the 1/4" allowance, but it just doesn't seem right to me! In fact, it really doesn't seem possible! What dimension is out of whack? Is it possible that the tail cone itself is not true? This is a QB kit, so I don't take credit for that issue!
What is the norm here? I'm holding off drilling the front spar attach points until I'm comfortable that the 1/4" is really ok.
As usual, any help is greatly appreciated!
![img2529.jpg](/community/proxy.php?image=http%3A%2F%2Fimg217.imageshack.us%2Fimg217%2F1285%2Fimg2529.jpg&hash=fa514da9454aba1dcc5ac6bf259a2e5a)
By veetail88, shot with Canon PowerShot SD850 IS at 2009-03-24
Last edited: