I was watching the duct tape hour a couple of days ago and I saw how well the duct tape held up as a akin for the sailboat. I know a LOT about airplanes and I was thinking that the mythbusters could actually cover an airplane(piper cub, super cub, maule, or citabria/super decathlon, etc..)with a duct tape skin. Not just one that flies, but a strong, fairly efficient one. Anybody who owns or fies one of the suggested airplanes knows that the skin needs to replaced every so often, and the mythbusters should just replace one of the planes skins with a duct tape skin. If so, I am VERY curious about all of the performance specs with the duct tape skin relative to the regular skin. Also the cost between the two.

Sounds very plausible...

I meant "a skin" not "a akin"

It probably would fly, but not being certified for flight, I believe you'd have to re-certify the aircraft as experimental. Skinning your aircraft with tape and then trying to fly has some legal problems.

The tape would not last long, it's not very good in sunlight, doesn't last long, water would reduce it's strength, cold temps would make the glue hard and lose adheision and all the edges of each strip of tape would produce much more drag than one unifrom peice of aircraft fabric.

It will likely fly for a few days until the tape starts to dry out, but I don't know if I'd put my life on the line to test it. I doubt it would work reliably much above 100 kts and you wouldn't want to put much of a load on the wings.

I knew it probably would not have been efficient, but it should fly. Here's a guy who repaired with duct tape his airplane after a bear attack: Duct tape airplane repair
Its pretty cool and plausible!! The mythbusters should test it!!