[amorphous]

Thanks. I don't see how they safely expect to contain over 8 bar of pressure, given the diameter of tank they're using. Even 12 mm thickness may be at or below actual burst strength at 100 def. F. for SS. I know cryogenic temps give SS greater strength, but that much?

And I don't understand the need for an 8 bar safety rating for a rocket that uses turbo pumps and not pressurized tanks to move fuel/Lox to the combustion chamber. Obviously there is a lot I don't understand. Lol

[Born to Conserve]

The pressure needed is not to contain the propellants, it is to carry the weight of the rocket. If you distribute the weight of the rocket over the cross sectional area of the rocket, you fall upon the operating pressure of the tanks....

[Ozark Tom]

Structural stiffness of a pressurized tank?