You old master you!!!
Reg
Tony R.
At 06:34 PM 1/31/2005, you wrote:
>
> > Wouldn't this cause the spar to become
>weaker, which is probably the most critical structure of the airplane?
>
>Andrew,
>
>The counter boring is done in the timber in the middle of the spar.
>When a beam is under load, the centreline takes no load. In the case of
>the spar under normal +ive G loading, the top of the spar is in
>compression and the bottom is in tension. The middle is neutral. The
>timber is only a spacer to hold the top and bottom spar rovings apart.
>
>Suggest you just use the bolt called out in the manual and countersink
>the hole until the other end of the bolt is just long enough to hold the
>parts it has to hold. If it is too long, it will conflict with the
>other bolt in the aluminium bracket when the wings are rigged.
>
>Regards
>Kingsley
>Mono Classic 281 in Oz.
>
>
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