Plan Conversion - RCCanada - Canada Radio Controlled Hobby Forum
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Old 07-29-2004, 11:25 PM   #1
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Plan Conversion

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I have recently came across some plans for rubberband powered aircraft. These plans are circa early 1940's. Since they are geared to a powerplant that is nothing like the gas engines of today,

They were still using balsa wood but the glue was NOT CA. If I remember correctly, it was simply a tube of what was DUCO CEMENT. (and it stunk like heck and took forever to cure)

I feel that there is an incredible increase in torque, stress and vibrations and probably a lot of other things, too.

My question comes from a variety of directions -

Should I "beef up" the rib thickness?
Should there be an increase in the thickness of the overall formers?

Remember, back then, the body was pretty much always made one half at a time with stringers and it was covered with either a tissue and dope or some silkspan. Today, we, of course, would switch to MonoKote or similar.

Anyway, any input will be greatly appreciated.
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