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  #21  
Old 10-04-2017, 06:28 PM
rockwoodrv9 rockwoodrv9 is offline
 
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Not to get off subject, but if the rudder bolt - nylon nut could come lose, couldn't the flaps or aileron bolt - nylon nuts come lose?

I have my rudders done with a castellated nut and cotter pin as per plans and my ailerons with the nylon lock nut as per plans. Should I be worried about them? After reading this thread, it gives me cause to rethink the wings.
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  #22  
Old 10-04-2017, 07:49 PM
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Sam Buchanan Sam Buchanan is offline
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Quote:
Originally Posted by rockwoodrv9 View Post
Not to get off subject, but if the rudder bolt - nylon nut could come lose, couldn't the flaps or aileron bolt - nylon nuts come lose?

I have my rudders done with a castellated nut and cotter pin as per plans and my ailerons with the nylon lock nut as per plans. Should I be worried about them? After reading this thread, it gives me cause to rethink the wings.
Rod end bearings do not require a castellated nut and cotter pin because the fitting gets torqued up tight against the ball of the bearing. The bolt and bearing ball do not rotate--the bearing race rotates on the secured ball of the bearing.
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  #23  
Old 10-04-2017, 08:41 PM
rockwoodrv9 rockwoodrv9 is offline
 
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Thanks for the answer Sam. That makes sense.
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  #24  
Old 10-04-2017, 08:56 PM
PCHunt PCHunt is offline
 
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If you are really worried about it, check out:

MS17826 nut

It is both self locking (nyloc) and castellated.

http://www.aircraftspruce.com/catalo...clickkey=42362

http://www.gen-aircraft-hardware.com...&Submit=Search

Probably overkill, but peace of mind for some.

Or put a lock nut on top of a nyloc.

I personally think that in this particular application, it is more likely that a cotter pin will get damaged and fall out leaving a castle nut loose, than it would be for a new self-locking nut to come off.

Flame suit on.
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