Does anyone know offhand the wall thickness of the carry-thru flap torque tube on an 140? I can't tell if it's .035 or larger. I don't have one laying around to measure and measuring one in place is less than ideal!
I made one for my bird 25 years ago with 4130 and can't remember, making one for a potential new member.
140 flap torque tube wall thickness
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6597
- Posts: 517
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140 flap torque tube wall thickness
Last edited by 6597 on Tue Mar 31, 2026 9:05 am, edited 1 time in total.
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6597
- Posts: 517
- Joined: Tue May 01, 2018 7:00 am
- Name: David Sbur
- Location: Vancouver WA KVUO
- Aircraft Type: '46 140 0-200A
- Occupation-Interests: Agriculture
- Contact:
Re: 140 flap torque tube wall thickness
Found an old post from John C, I think I got it now, thx!tried to measure mine today. It's tough to get an exact measurement without taking one of the flaps off, but I am confident it is between .060 and .070, which implies it's .065 wall tubing.
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tyzawe
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Re: 140 flap torque tube wall thickness
3/4" 0.065 4130
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6643
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- Name: John C
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Re: 140 flap torque tube wall thickness
Wow! I knew the answer and didn't even know it!
John Cooper
www.skyportservices.net
www.skyportservices.net