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Rib lacing/stitching on challenger 2 Experimental

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Xivier44

Member
Joined
Nov 28, 2021
Messages
7
Hello all, i have two questions regarding rib lacing/stitching on my experimental challenger 2 aircraft:

1. Rib lacing was done on my wings but it was only done on the top of the rib, most literature I have found online references lacing through the entire wing from the top to the bottom of the rib. is lacing done is this manner ok? (see picture below)

2. The fabric is not secured against the bottom of the wing, after many hours of flying (upwards of 1000 hours) the fabric on the bottom of the wing can rub against the bottom cross members and weaken the fabric to the point it can be easily puched through. Without taking my fabric off (which is in really good condition) is there anyway i can reinforce the bottom fabric or protect it from rubbing against metal?

The plane is covered by polyfiber system with poly tone paint. Fabric is 15 years old but is in pristine condition only 300 total hours. All fabric passes punch test currently.

20220915_185839.jpg
 
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