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Thomas C Coyle
- Alamogordo, NM
- United States
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Thomas C Coyle's Page
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- STOL CH 801
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- Radiographer on the North Slope of AK with Kakivik.
I am buying this kit from Dean Kasper. Currently I have taken possession of approximately half the kit. I am doing inventory and gathering information to start my build. Dean has completed the Rudder, Hz Stabilizer, elevator and 90% of the right wing. The building location is Alamogordo NM with Richard Finch.
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Funny you should ask. I was doing my second wing yesterday, and once again my root skin is going badly.
I had thought that one hole/cleco on rib 1 then 1 on root rib, top. bottom,repeat, repeat was the answer. But it is not.
What I "thought" I had learned was to make the attachment strip angles nearly perfectly aligned (on rib 1 and the root rib), and to follow the top-bottom approach described above.
My suspicion now is that the rear channel does not lead smoothly into the root rib. The top surface of the root rib is lower than the rear channel.
I'm going to have to look hard at it some more, and if I can salvage the piece I will. If not, I'll order another.
You did well by setting aside for cooldown! This is small stuff in the grand scheme.
I'll add more if I learn anything.
Best,
Joe
Later that same day:
I've confirmed that having the top of the root rib lower than the top of the rear channel means I've got to add shims to make up the gap.
Also, I changed the way I checked alignment of the attachment angles. The straight lines in this "gradually curving piece of sheetmetal" are at about a 45 degree angle to the ribs - not 90 degrees. Therefore, I realigned the angles with a straight edge held at 45 degrees (the high end of the edge is toward the leading edge). This helped.
By the way you can change alignment after drilling (if you have to) by going to a larger rivet to wipe out the two misaligned holes.
Good luck.