I think there are lots of possibilities for inflatable vehicles which cannot be deflated.
For example, make a flimsy structure out of thin steel foil, then pressurize it to give it far more strength than it would otherwise have.
Same as the strength of a coke can.
Except with steel as the tensile material, you can probably use pressures up around 1000 psi, making the whole structure have an amazing strength to weight ratio.
For example, make a flimsy structure out of thin steel foil, then pressurize it to give it far more strength than it would otherwise have.
Same as the strength of a coke can.
Except with steel as the tensile material, you can probably use pressures up around 1000 psi, making the whole structure have an amazing strength to weight ratio.