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Europa-List: Torque Tube Bronze Bushing Tightness\Lubrication

Subject: Europa-List: Torque Tube Bronze Bushing Tightness\Lubrication
From: Graham Singleton <graham@gflight.f9.co.uk>
Date: Wed, 16 Jul 2003 14:20:36

>I am about to install my torque tube after having the pins replaced to the
>larger option. I have noticed that the bronze bushings are very tight on
>the tube. Is this normal??

Tony,
No it isn't. Make sure the tube is still round. Measure it accurately over 
its whole length, any out of roundness will cause much pain when rigging. 
Check all the bushes too, particularly the stainless ones that go in the 
tailplane.
Don't damage or scratch the plating on the tube, it will tend to rust.(it's 
4130, stainless ain't strong enough).
Regarding ground clearance of the prop on a Classic, Ground stance is not 
relevant, It's when you lift the tail the danger occurs.
So, keep the tailwheel on the ground at all times the airplane is on the 
ground, landing OR take off.
Graham 


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