Interesting Aerodynamic Cars (Mike Vetter's ETV, also Avion)

[kach22i]

http://www.jalopyjournal.com/forum/s....php?p=8614304

5lam; These are located North of Brisbane, in Queensland, Australia.

[orbywan]

Originally Posted by kach22i

So this photo brings up an interesting question. Should I ever have time to finish the damn thing, when I arrive at the final shape of my boat tail I intend to have an A&P friend of mine cover it in aluminum. So it will be similar to this awesome creation in the photo.

The question is this; you've aluminum skin over a steel frame. How do you keep dissimilar metal corrosion at a minimum or eliminate it?

[Stan]

Originally Posted by orbywan

So this photo brings up an interesting question. Should I ever have time to finish the damn thing, when I arrive at the final shape of my boat tail I intend to have an A&P friend of mine cover it in aluminum. So it will be similar to this awesome creation in the photo.

The question is this; you've aluminum skin over a steel frame. How do you keep dissimilar metal corrosion at a minimum or eliminate it?

Your A&P friend will know to use zinc chromate primer between the aluminum and the steel.

[radioranger]

I dont know if zinc chromate is a good idea as its pretty toxic, even though airplanes are full of the stuff. I think plain old epoxy would be better, you never hear of Shelby cobras corroding that much , course they probably aren't used in the snow or you could just insulate the two where they might get moisture between them.

[NeilBlanchard]

This car looks like an attempt to copy the Panhard LM64.

[California98Civic]

Originally Posted by NeilBlanchard

This car looks like an attempt to copy the Panhard LM64.

Another cool image of that car:

[kach22i]

Originally Posted by orbywan

The question is this; you've aluminum skin over a steel frame. How do you keep dissimilar metal corrosion at a minimum or eliminate it?

Spend the rest of the weekend on Google and research the heck out of the topic.

Caulk and adhesives will be heavy, but will also have benefits of preventing air and water infiltration by sealing the joints.

Building paper (roofing felt) will also be heavy. Tyvek will be much lighter, perhaps it can be spray mounted to the back of the aluminum prior to mounting.

Sound absorption materials will be expensive in addition to being heavy, but also have attractive attributes such as insulative qualities.

Perhaps a double sided tape will allow you to mount, seal and separate the two materials without additional mechanical fasteners. Call up the 3M technical assistance people and see what they recommend.

You also have weird things such as "insulative paints " which may be an option worth researching.

You just need a "bond breaker", but be aware that moisture and condensation can transfer chemicals between the two metals allowing a small degree of migration. Not as much damage as bare contact, but nothing is perfect short of total encapsulation (epoxy paint?).

[Sven7]

THIS SITE IS GOLD. OMG.

Inter Action

[Varn]

My bicycle is on the the first page.

Originally Posted by Sven7

THIS SITE IS GOLD. OMG.

[Stan]

Originally Posted by Varn

My bicycle is on the the first page.

Which one...the "Varna Diablo"?