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  #1  
Old 05-19-2022, 06:29 AM
Sully73 Sully73 is offline
 
Join Date: Jul 2020
Location: Lincoln, NE
Posts: 39
Default Bending the Flap Connecting Rod

I have found that I can reduce the size of the hole in the fuselage if I bend the flap actuator rod 35 degrees. Has anyone done this? Would this be a safe thing to do?
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  #2  
Old 05-19-2022, 06:40 AM
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Mel Mel is offline
 
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Location: Dallas area
Posts: 11,422
Default PLEASE Do NOt Do This.........

Quote:
Originally Posted by Sully73 View Post
I have found that I can reduce the size of the hole in the fuselage if I bend the flap actuator rod 35 degrees. Has anyone done this? Would this be a safe thing to do?
The flap push rods should NOT be bent. Flaps carry more load than any other control surface on the airplane. They are the only surfaces that are pushed down into the slipstream and held there.

Flap pushrods are in strict compression and any bending will seriously jeopardize their strength.
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Last edited by Mel : 05-19-2022 at 07:10 AM.
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  #3  
Old 05-19-2022, 07:04 AM
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N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Fort Myers, FL
Posts: 197
Default

Quote:
Originally Posted by Sully73 View Post
I have found that I can reduce the size of the hole in the fuselage if I bend the flap actuator rod 35 degrees. Has anyone done this? Would this be a safe thing to do?
What Mel said,,
Enlarge the hole in the fuselage,, I had to extend the hole into the bottom skin as well. It doesn't sound or look pretty, but it's better than bending the already stressed push rods.
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Last edited by N184DA : 05-19-2022 at 07:05 AM. Reason: Typo
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  #4  
Old 05-20-2022, 08:22 AM
andoman andoman is online now
 
Join Date: Jul 2006
Location: Payson, AZ
Posts: 62
Default

Has anyone had to remove material into the longeron to some degree in order to get the hole big enough?
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  #5  
Old 05-20-2022, 10:15 AM
fixnflyguy fixnflyguy is offline
 
Join Date: Jan 2006
Location: Winston-Salem, N.C.
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Default The end rib

Being its really the end rib of the wing section carry-through, its not technically the longeron. The cut-out will be in the sideskin, bottom skin and end rib to be big enough to allow unrestricted travel. Its near impossible to layout and make a cut in one shot. Start small and get the flap rod hooked to the flap and actuator then move it, mark it, cut/trim it.. rinse and repeat until all is good. Start with one side, then make a paper rubbing/template to lay-out on the opposite side. it will go much quicker! Of course, there is the hole in the floor additionally that needs done in concert. I made interior close-outs that cover that area and the flap actuator to keep PAX junk from getting lost or jamming things, so I get no breeze or noise from the openings.
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  #6  
Old 05-20-2022, 10:35 AM
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pazmanyflyer pazmanyflyer is online now
 
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Location: Litchfield Park, AZ
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Default

As advised by Mel do not bend the rods. The opening will need to be opened a little more for clearance. Here are my pics for a visual reference. Note: This is a -7 model.

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