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How to attach rudder question

 
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LHusky(at)aol.com
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PostPosted: Sun Dec 10, 2006 10:48 am    Post subject: How to attach rudder question Reply with quote

OK, It is time to attach my rudder. On 6T5-3, I reamed the hole out and inserted the lower rudder bushing. I then placed 6T5-3 and the bushing between 6B2-4 and 6B2-6. I placed an AN3-6A bolt through and it looks ok. My question is for the top. The plans are not clear to me.  If I am reading the plans right, I will ream out 6B2-7 and place the bushing in this piece. Then I will place 6T4-3 on the top and bottom of the bushing and put an AN3-6A bolt in it. I have done this and it really looks like a lot of empty space between the 2 6T4-3 pieces. I just want to confirm before I place them on the rudder and drill. Also, once the rudder is in place, I noticed that the rudder is wider than the back of the fuse. I measured everything again and everything looks right. Is this normal? I thought that it would be more flush with the rear of the fuse. I guess that this is why they have 6T5-4 acting as a fairing. Any input will be great.

Larry Husky
Lakeview, OR
Hanging Rudder
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planecrazydld(at)yahoo.co
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PostPosted: Sun Dec 10, 2006 11:34 am    Post subject: How to attach rudder question Reply with quote

I noticed that the ailerons are about 1/4" thicker than the wing forwad of them. Maybe this is to enhance control response? I know that htinner surfaces reduce sensitivity - build in a dead-band...

LHusky(at)aol.com wrote: [quote] OK, It is time to attach my rudder. On 6T5-3, I reamed the hole out and inserted the lower rudder bushing. I then placed 6T5-3 and the bushing between 6B2-4 and 6B2-6. I placed an AN3-6A bolt through and it looks ok. My question is for the top. The plans are not clear to me. If I am reading the plans right, I will ream out 6B2-7 and place the bushing in this piece. Then I will place 6T4-3 on the top and bottom of the bushing and put an AN3-6A bolt in it. I have done this and [quote][b]


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bryanmmartin



Joined: 10 Jan 2006
Posts: 1018

PostPosted: Sun Dec 10, 2006 3:21 pm    Post subject: How to attach rudder question Reply with quote

That's to help keep the flow attached to the surface of the aileron. The flow will detach from the trailing edge of the lower surface of the wing and then jump the gap and hit the leading edge of the aileron and reattach. If the aileron were thinner the detached flow might miss it's leadiing edge and stay detached which would reduce the effectiveness of the control surface. This is the explanation for the thicker flaps that Chris used to give in his seminars at Oshkosh.

On Dec 10, 2006, at 2:32 PM, David Downey wrote:
Quote:
I noticed that the ailerons are about 1/4" thicker than the wing forwad of them. Maybe this is to enhance control response? I know that htinner surfaces reduce sensitivity - build in a dead-band...


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Bryan Martin
N61BM, CH 601 XL, 
RAM Subaru, Stratus redrive.

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armyret(at)mchsi.com
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PostPosted: Sun Dec 10, 2006 4:59 pm    Post subject: How to attach rudder question Reply with quote

Larry- The space between the 6F4-3 and 6T4-3 is dictated by the length of the bushing 6B2-8. 6B2-8 should be just a bit longer than the thickness of 6B2-7. This "bit" is to make sure the rudder moves freely. If your bushing 6B2-8 is longer I'd file it down to the length needed. (On my plans (12/01) I have 1- 6F4-3 and 1-6T4-3 rather than 2-6T4-3s).
Regards,
Al Young
N-601AY
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Larry.J.Husky(at)doc.stat
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PostPosted: Sun Dec 10, 2006 6:10 pm    Post subject: How to attach rudder question Reply with quote

The plans call for a 10 mm bushing and that is what I have, but it just seems that there is at least 3 mm clearance on each side. Just seems like a lot and I wonder if I could maybe cut this down to 8 mm without any problems. Thanks for the reply.

Larry
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