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Old Aug 17, 2012, 05:07 PM
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Gemini2's Avatar
United States, NJ
Joined Aug 2011
190 Posts
Question
Correct Way To Attach GWS Slow Fly Prop To GWS IPS 'C' Gbox??

I have a GWS Slow Fly prop I want to attach to a GWS Type 'C' IPS gearbox.
The Gbox comes with 2 nuts & 2 washers on the Gbox prop shaft.
The 1st 3mm or so of the prop inner hub is shaped each side as an exact match of the nut outer profile.

Looking at the Gbox side-on, with the prop shaft pointing to the left, do I thread on 1 nut as far as it will go, then slide the right side of the prop over the shaft & key it over the nut, then put 1 or 2 washers the left side of the prop & tighten the 2nd nut against that??
Or is the 2nd, [LHS], nut meant to go inside the hub?
If so, is there a tool to do that?

Loctite to stop it all unravelling?
Thanks
G2
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Old Aug 17, 2012, 05:28 PM
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Dr Kiwi's Avatar
Chattanooga, Tennessee, United States
Joined May 2003
27,200 Posts
Fit the first nut down as far as it will go on the threaded shaft, locate the hex inset in the prop over that nut, place a washer on the shaft, tighten the second nut down until the prop is held tight (you could use Loctite on both nuts). Put the second washer in your spares box! You can replace the "front" nut with a Nylock nut... if you don't have Loctite for the standard nut, the Nylock version won't not allow the prop to come loose.
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Old Aug 17, 2012, 05:38 PM
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Gemini2's Avatar
United States, NJ
Joined Aug 2011
190 Posts
Quote:
Originally Posted by Dr Kiwi View Post
Fit the first nut down as far as it will go on the threaded shaft, locate the hex inset in the prop over that nut, place a washer on the shaft, tighten the second nut down until the prop is held tight (you could use Loctite on both nuts). Put the second washer in your spares box! You can replace the "front" nut with a Nylock nut... if you don't have Loctite for the standard nut, the Nylock version won't not allow the prop to come loose.
Ok
Thank you
G2
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Old Aug 17, 2012, 07:44 PM
Jack
USA, ME, Ellsworth
Joined May 2008
16,951 Posts
And if you need to move the prop out on shaft a little bit to clear a cowling or something like that, you can put two nuts on first and lock them against each other farther out on the shaft.

Then follow the rest of the procedures as Dr Kiwi described. There is usually some extra shaft in font of the prop and you can use that to gain some clearance.

Jack
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Old Aug 17, 2012, 08:50 PM
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Mark Wood's Avatar
United States, CA, Bear Valley Springs
Joined Feb 2000
26,366 Posts
Meh. Cut off the threads and use a 3.2mm prop adapter on what's left.

mw
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