Why don't they put a metal skin on top of the foam?

I don't understand why they don't just turn the thing (fuel tank) into
a huge disposable thermos. Putting a metal skin on top of the foam
would seem to solve most problems?

The problem is dealing with condensation, not pieces of foam breaking
off? Geez, for a billion bucks redesigning the thing, they could of
put a few million of those little moisture absorbing packs they use in
electronics packing, put a metal skin on top of that and be on their
way?

wrote in message
oups.com...
I don't understand why they don't just turn the thing (fuel tank) into
a huge disposable thermos. Putting a metal skin on top of the foam
would seem to solve most problems?

The problem is dealing with condensation, not pieces of foam breaking
off? Geez, for a billion bucks redesigning the thing, they could of
put a few million of those little moisture absorbing packs they use in
electronics packing, put a metal skin on top of that and be on their
way?



Think about the added mass and do the math.

wrote in message
oups.com...
I don't understand why they don't just turn the thing (fuel tank) into
a huge disposable thermos. Putting a metal skin on top of the foam
would seem to solve most problems?

Weight.



The problem is dealing with condensation, not pieces of foam breaking
off? Geez, for a billion bucks redesigning the thing, they could of
put a few million of those little moisture absorbing packs they use in
electronics packing, put a metal skin on top of that and be on their
way?