End Rib Bottom Wing

A forum about all aspects of the construction and maintenance of the Billy Dawson inspired modified Hatz Classic biplane. Here is the place to ask your questions and get the answers from the real experts.
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Bitshifter
Posts: 202
Joined: Thu Aug 02, 2012 5:12 pm
Location: Avondale Pa
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End Rib Bottom Wing

Post by Bitshifter »

I have my first bottom wing almost completed and am getting ready to complete the wing walk. My question to the group is the top surface of the wing walk. If I lay a straight edge across the top of my ribs, aft of the rear spar, it does not contact the top of the end rib. My end rib is cut very close to the full scale drawing and the bottom surface conforms well to the bottom of the wing. The top surface conforms to the top of the wing until aft of the rear spar where the end rib tapers faster than the wing rib. This will cause the wing walk to slant toward the fuselage near the trailing edge. Is this to be expected?
I miss Scott and his site more and more each day, he was a great resource.
Ed White
HC 154

"In life 10% wrong is failure, in school it's an A"
jwhanson
Posts: 96
Joined: Tue Mar 16, 2010 11:55 pm

Re: End Rib Bottom Wing

Post by jwhanson »

Hi Ed,
Yes, the wing walk will slope in toward the fuselage a little toward the trailing edge. No problem. You can see the angle relationship of the two sticks.
John Hanson
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Bitshifter
Posts: 202
Joined: Thu Aug 02, 2012 5:12 pm
Location: Avondale Pa
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Re: End Rib Bottom Wing

Post by Bitshifter »

John,
Thank you very much, the picture is exactly what I what looking for. I had been looking at builders logs but couldn't find any pictures from just that angle. I understand why the angle changes due to the trailing edge curve but I still wasn't sure if it was correct. Thanks again for taking the time to post such an informative picture.
Ed White
HC 154

"In life 10% wrong is failure, in school it's an A"
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