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Old 11-05-2006, 08:33 PM   #1
mrhp
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Default 40% rudder horn

who makes the best 40% rudder horns?
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Old 11-05-2006, 08:34 PM   #2
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Default Re: 40% rudder horn

www.swbmfg.com has some nice ones
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Old 11-05-2006, 09:40 PM   #3
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Default Re: 40% rudder horn

Du-bro
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Old 11-05-2006, 10:21 PM   #4
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Default Re: 40% rudder horn

So it really depends on whether you are imbedding the rudder horn in the rudder or going with a screww type through a hard point in the rudder. If you ar egoing with a hard point I woudl recommend Nelson 10-32 hard ware - its the strongest in that size.

http://www.nelsonhobby.com/rcl.html




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Old 11-05-2006, 10:29 PM   #5
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Default Re: 40% rudder horn

I think this would the kind of horn he is talking about. i dont think anybody would run a bolt thur there rudder on a 40%
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Old 11-05-2006, 10:36 PM   #6
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Default Re: 40% rudder horn

The 40% and 37.5% AM Yaks work just fine that way. Also Quique runs a Dubro 8-32 Bolt style on the 40% Bype Yak rudder also.. its actually pretty common on 40%ers!!!
Of course there needs to be hard point to drill through...

http://sd-model.com/images/Yak%2037_...20r5_12_28.pdf




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Last edited by rdgood; 11-05-2006 at 11:26 PM.
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Old 11-06-2006, 12:17 AM   #7
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Default Re: 40% rudder horn

Andy Kane makes some awesome ones

sorry it is a really bad picture, I will try to find another one.
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Old 11-06-2006, 12:24 AM   #8
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Default Re: 40% rudder horn

Hey whats the website to git them from Andy?
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Old 11-06-2006, 06:24 AM   #9
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Default Re: 40% rudder horn

Quote: Originally Posted by rdgood
The 40% and 37.5% AM Yaks work just fine that way. Also Quique runs a Dubro 8-32 Bolt style on the 40% Bype Yak rudder also.. its actually pretty common on 40%ers!!!
Of course there needs to be hard point to drill through...

http://sd-model.com/images/Yak%2037_...20r5_12_28.pdf




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That's pretty scarey...i wouldn't think the bolt would hold up.
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Old 11-06-2006, 06:51 AM   #10
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Default Re: 40% rudder horn

i also use the bolt like QQ in my ulti - 2 years - from TBM
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Old 11-06-2006, 07:40 AM   #11
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Default Re: 40% rudder horn

Quote: Originally Posted by Dennis C
That's pretty scarey...i wouldn't think the bolt would hold up.

Why not?
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Old 11-06-2006, 08:37 AM   #12
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Default Re: 40% rudder horn

Quote: Originally Posted by exeter_acres
Why not?
Most of the 40% i see have the double arm plate. to me it seems like the bolt would bend or break cause of the size of the rudder
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Old 11-06-2006, 08:45 AM   #13
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Default Re: 40% rudder horn

seems fair....

simply curious.. have you seen this happen?
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Old 11-06-2006, 09:51 AM   #14
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Default Re: 40% rudder horn

Quote: Originally Posted by exeter_acres
seems fair....

simply curious.. have you seen this happen?
Personally no i haven't but there was a thread on RCU about the bolts snapping. I think the bolts are fine for smaller birds like 33% and smaller. but if i put a 40% together it sure would get a double truss arm.
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Old 11-06-2006, 10:17 AM   #15
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Default Re: 40% rudder horn

Dennis,

Yeah I agree that the double truss would probably be the strongest way to go. Some of the giant arfs are already covered and its kinda difficult to design around it to get a dbl truss style in there. HAve you seen Darcy Wingo flip his 37.5% around he has 10-32 hardware on his rudder - made me a believer...


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Last edited by rdgood; 11-06-2006 at 10:46 AM.
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