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MauleDriver(at)nc.rr.com
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 Posted: Tue Mar 13, 2007 7:29 pm Post subject: elevator control horn drilling |
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John, looks like I'm going down a route similar to yours. Thanks for
the pics. What rivets did you use?
John Gonzalez wrote:
| Quote: |
I had the additional requirement of needing to align my counter
balance arms, my horn hole was slightly less than 90 degrees itrue in
all dimensions. I ended doing the plate and riveting it on to the horn.
I"ll send picture tomorrow if you are interested.
JOhn G.
> From: MauleDriver <MauleDriver(at)nc.rr.com>
> Reply-To: rv10-list(at)matronics.com
> To: rv10-list(at)matronics.com
> Subject: Re: elevator control horn drilling
> Date: Sun, 18 Feb 2007 16:25:58 -0500
>
>
>
> John (or anyone), what was Vans final advice regarding this
> situation? I may be facing a similar situation with reduced material
> between the hole and the end of the horn.
>
> I've searched the forum but can't find additional references.
>
> Thanks
> do not archive
>
> John Gonzalez wrote:
>>
>> <indigoonlatigo(at)msn.com>
>>
>>
>> Hi Richard,
>>
>> I just got off the phone with Van's and asked them to have the
>> powers that be review the building manual and make a comment about
>> being careful to respect the up/down dimension of where the drill
>> will exit out of the second hole on the second horn. Not jus tbe
>> concerned about the most aft horn being the designated guide.
>>
>> I wanted to ask you the minimum edge distance as you stated, is that
>> in steel or in alluminum?
>>
>> I discussed the issue of welding on a plate and and he did not
>> think that was necessary, there also could be a weakening of the
>> original material at the intersection of the new plate and the horn.
>>
>> Just for discussion, (If I could not sleep because of this) he
>> discussed an alternate remedy, riveting another plate of similair
>> material(4130 steel) with say 6 rivets using the same hole, just to
>> extend the gap between the hole edge and the bottom edge of the horn.
>>
>> As I have stated, I have 6/32 of material on the bottom edge from
>> hole edge to horn bottom edge, and when this is all torqued down
>> with washers pinching this together I wonder how exposed to stresses
>> this 6/32" of material will be. still need to review the
>> connection, but alteast there are a couple of alternative remedies
>> other than rework
>>
>> JOhn G. 409
>>
>>
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Jack.Phillips(at)cardinal
Guest
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| Posted: Wed Mar 14, 2007 3:37 am Post subject: elevator control horn drilling |
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Bill,
If you end up making a steel doubler for your horn and riveting it on,
let me know. I've got a fair bit of 4130 steel sheet of various
thickness laying around.
Jack Phillips
#40610
Tring to finish the Elevators and get the Pietenpol ready to fly to SNF
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