"Martin X. Moleski, SJ" <moleski@[EMAIL PROTECTED]
> wrote in message
news:3sydnaDVSJfSC9XVnZ2dnUVZ_tDinZ2d@[EMAIL PROTECTED]
> On Thu, 5 Jun 2008 11:40:55 -0700 (PDT), mppg1@[EMAIL PROTECTED]
wrote in
> <10e6eec7-60e0-4f53-85ec-b9821ffe67f7@[EMAIL PROTECTED]
>:
>
>>In the plans for the wing, they show two spars spaced quite
>>equidistantly between the leading and trailing edges.
>
>>In the constuction booklet, they show the area between the leading
>>edge and the spar covered with balsa.and also between the trailing
>>edge and the spar.
>
>>It looks like a great idea to strengthen the wing in the event of a
>>(not possible) CRASH! Would 1/32 balsa, perhaps 5 sheets add too much
>>weight to the anticipated weight of about 5lbs.
>
>>Martin Moleski would probably say, "Go ahead, be brave, take a chance,
>>try it..etc. And I agree!!!!!!! But...well...no guts!
>
> You got me pegged, mppg!
>
> I disagree with the other fellows who suggest that
> the Seniorita can't carry a few exta sheets of balsa.
> It's the kind of plane that you can strap a camera
> to for aerial photography. It's got plenty of
> carrying capacity.
>
> Having said that, I would recommend 3/32 balsa for
> sheeting. I also wouldn't run it the whole length
> of the wing. You're not going to get any extra
> strength out of 1/32".
>
> And even if you do sheet some of the wing, it's
> not going to offer any decent crash protection.
> If you're doing cartwheels, bad stuff is going
> to happen to either kind of wing, probably.
>
> Here's a thought: build one wing light and a copy
> of it heavy. See how each flies. If you crash
> either one, you'll have the other already in hand,
> ready to go flying again. :o)
>
> Marty
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AFAIK About the only real benefit of sheeting some of the wing has to do
with flutter caused by the wing wanting to twist, unless you are going to
use rubber bands. The 4star120 is re****ted to have that problem and that
is
one of several different solutions.
*I* think the Seniorita will fly slightly better with the stiffer wing.
Will the extra stiffness offset the added weight? Try it and find out. I
strongly suspect that you will be unable to tell since most of us do not
instrument our birds.
YMMV
Jim Branaum
AMA 1428
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