The Murphy Builders Site

Just leave the last hole empty.

At 02:32 PM 5/2/2008 -0400, you wrote:

could anyone tell me what they have done with the inboard rib(the one
next to the controll horn
where it doesn't reach the tip of the elevator skin.because of the
angleon the skin it makes the rib
too short by one hole.

any help would be great
thanks
Jason



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Drew



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Jason,

You could fabricate a small extension onto the rib, this will give you
additional strength in that area.

Jeff

On Fri, May 2, 2008 at 11:32 AM, Rebecca Brownell <brownell@candlelight.ca>
wrote:

could anyone tell me what they have done with the inboard rib(the one
next to the controll horn
where it doesn't reach the tip of the elevator skin.because of the
angleon the skin it makes the rib
too short by one hole.

any help would be great
thanks
Jason



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Personally I'd just put a dummy rivet in an extra skin hole if that is
the concern. Call the gap a water drain ;)

OTOH don't forget Wayne's triangular doubler and angle bracket from the
elevator spar to the outboard rib, which is worth the extra ounce or two.

Ken

Jeff Micheal wrote:

Jason,

You could fabricate a small extension onto the rib, this will give you
additional strength in that area.

Jeff

On Fri, May 2, 2008 at 11:32 AM, Rebecca Brownell <brownell@candlelight.ca>
wrote:

could anyone tell me what they have done with the inboard rib(the one
next to the controll horn
where it doesn't reach the tip of the elevator skin.because of the
angleon the skin it makes the rib
too short by one hole.

any help would be great
thanks
Jason

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There's no stress on that area so not much need for extra strength. OTOH it
is semi-balanced and adding extra weight out at the end is undesirable.
Almost every rebel just leaves the hole empty but a dummy rivet wouldn't
hurt anything.

At 12:52 AM 5/3/2008 -0700, you wrote:

Jason,

You could fabricate a small extension onto the rib, this will give you
additional strength in that area.

Jeff

On Fri, May 2, 2008 at 11:32 AM, Rebecca Brownell <brownell@candlelight.ca>
wrote:

could anyone tell me what they have done with the inboard rib(the one
next to the controll horn
where it doesn't reach the tip of the elevator skin.because of the
angleon the skin it makes the rib
too short by one hole.

any help would be great
thanks
Jason



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Drew



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Drew,

Adding any extra weight to an airplane is undesirable, non the less control
surfaces. As far as the elevator being semi-balanced that's great, if you
don't divert from the build design........ but I'm sure that every builder
static balances all their control surfaces after each little
modification and don't forget the added weight of paint behind the hinge
point--I've seen some paint jobs put on with a heavy trigger finger.

Just 2 cents worth and something to think about.

Jeff

On Sat, May 3, 2008 at 1:05 PM, Drew Dalgleish <drewjan@cabletv.on.ca>
wrote:

There's no stress on that area so not much need for extra strength. OTOH
it
is semi-balanced and adding extra weight out at the end is undesirable.
Almost every rebel just leaves the hole empty but a dummy rivet wouldn't
hurt anything.

At 12:52 AM 5/3/2008 -0700, you wrote:

Jason,

You could fabricate a small extension onto the rib, this will give you
additional strength in that area.

Jeff

On Fri, May 2, 2008 at 11:32 AM, Rebecca Brownell <

brownell@candlelight.ca>

wrote:

could anyone tell me what they have done with the inboard rib(the one
next to the controll horn
where it doesn't reach the tip of the elevator skin.because of the
angleon the skin it makes the rib
too short by one hole.

any help would be great
thanks
Jason



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Drew



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