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Mod 76 pitch hold control rod

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graeme bird

Joined: 15 Jul 2010
Posts: 434

Posted: Sat Nov 28, 2015 9:47 am Post subject: Mod 76 pitch hold control rod

I have decided to follow mod 76 Attitude Hold Autopilot after looking at the pain, delay and cost of submitting LAA form Mod 2 and Mod 3 and so I am collecting and ordering bits. The long aluminium push rod didn't come with the standard kit from Tru Track with the Gemini AP and doesn't seem to be a Europa supplied part and so I need to source a tube 22" long OD 10.45 (0.41) or more and ID for UNC 10-32  4mm (0.156), tried Aircraft Spruce, LAS, Farnell, RS and local engineering companies, any ideas?

I have a 1/2" pipe with standard 1/4" ends on - I guess I could buy new dash 3 bearings but they may be a bit bulky.

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_________________
Graeme Bird
kit4 (Wagstaff) TBD
Kit3 G-CLXU (Gregory) mono 914 xs Woodcomp
Kit2 G-PATS - (kesterton) Mono Classic 912 warpdrive
Kit 1 G-UMPY - Mono Classic/XS 912S, Woodcomp G(@)gdbmk.co.uk

rowlandcarson(at)gmail.co
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Posted: Sat Nov 28, 2015 1:17 pm Post subject: Mod 76 pitch hold control rod

On 2015-11-28, at 17:47, graeme bird <graeme(at)gdbmk.co.uk> wrote:



 	  Quote: 	
		   I need to source a tube 22" long OD 10.45 (0.41) or more and ID for UNC 10-32  4mm (0.156), tried Aircraft Spruce, LAS, Farnell, RS and local engineering companies, any ideas?


	


Graeme - why not buy a piece of solid aluminium bar and drill & tap the ends 10-32 UNC? There's plenty of online metal suppliers if you can’t find anyone local. I have used:



http://www.metalandplastic.co.uk



http://www.mallardmetals.co.uk



http://www.nogginend.com



https://www.metals4u.co.uk



http://www.glrkennions.co.uk (worth visiting this website for the little Walschaert gear animation alone!)



http://www.chronos.ltd.uk



for various sorts of metal supplies in the past and have been generally satisfied with all of them.



If you don’t have a lathe that can swallow, for centre-drilling, the size of round bar you need, have a search for model engineering societies in your area. They can often find a member with a well-equipped workshop very happy to tackle one-offs like this, usually in return for some bottled muscle relaxant.



Hope this helps.



in friendship



Rowland



| Rowland Carson          ... that's Rowland with a 'w' ...

| <rowlandcarson(at)gmail.com>            http://www.rowlandcarson.org.uk

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