Today's Message Index:
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1. 12:25 PM - F-445 bolts (Ken Brooks)
2. 02:19 PM - Re: F-445 bolts (Denis Walsh)
Message 1
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Does anyone recall if the four bolts through the F-445 (phenolic) flap arm hold
down blocks get torqued? Couldn't find it in the manual anywhere on on the drawing.
We torqued them to 20 inch pounds and the arm would barely move with
finger pressure. That little flap motor would have to work pretty hard to move
the arm along with wind loading in flight. Thanks in advance. - Ken
Message 2
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Whatever the good book says for those size bolts, 20 sounds about right but check.
What you need to do is add washer(s) between the blocks as necessary to relieve
the pressure to a reasonable amount. Start with a "thin" washer and add as neccesary.
I found one regular size washer was just right.
Hark to the fact that I am going back 20 years in my memory, and I may be thinking
of the rudder tubes which had the same system on the RV 6.
On 27Jul, 2013, at 1:24 , Ken Brooks <kenbrooks@charter.net> wrote:
>
> Does anyone recall if the four bolts through the F-445 (phenolic) flap arm hold
down blocks get torqued? Couldn't find it in the manual anywhere on on the
drawing. We torqued them to 20 inch pounds and the arm would barely move with
finger pressure. That little flap motor would have to work pretty hard to move
the arm along with wind loading in flight. Thanks in advance. - Ken
>
>
>
>
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