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"hinge stock"?



 
 
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  #1  
Old October 5th 05, 12:17 AM
Michael Horowitz
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Default "hinge stock"?

reading thru EAA's "Aircraft Welding" I see mention of 'hinge stock',
a tube which probably takes a bushing and is part of the
elevator/stab. assy.

I didn't see a mention in Spruce; is it just tougher steel than 4130
or is it tubing with a pre-drilled bushing? - Mike

  #2  
Old October 5th 05, 04:16 AM
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I didn't see a mention in Spruce; is it just tougher steel than 4130
or is it tubing with a pre-drilled bushing? - Mike

--------------------------------------------------------------------------

Dear Mike,

Look under 'Bushing Stock.'

'Hinge Stock' is another name for plain, old-fashioned SAE 1020 mild
steel tubing, usually having a sixteenth-inch wall. You may install
bushings in the finished hinge if you wish but other means of
distributing the wear are to provide additional hinge points or to use
a hinge-pin (bolt; whatever) of larger diameter. If kept greased and
cleaned periodically, with the pins replaced when prudent, even
operating off a dirt strip it will be twenty years or more before you
can detect any wear in the barrel of the hinge itself.

-R.S.Hoover

 




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