SpaceX Shows Stainless Starship Will Have Mirror Finish

SpaceX Shows Stainless Steel Starship Parts And Hopper Will Have a Mirror Finish

Brian Wang |
December 24, 2018 |

The SpaceX Starship is being made from stainless steel. The skin will get too hot for paint. The stainless steel will have a mirror finish for maximum reflectivity.

It will require much less shielding.

The usable strength to weight ratio of full hard stainless steel at cryogenic temperatures is slightly better than carbon fiber and at high-temperature stainless steel is vastly better.

The hopper Starship will have three raptor engines.

Stainless Steel Starship

— Elon Musk (@elonmusk) December 24, 2018

Yes. Radically redesigned Raptor ready to fire next month.

— Elon Musk (@elonmusk) December 22, 2018

Usable strength/weight of full hard stainless at cryo is slightly better than carbon fiber, room temp is worse, high temp is vastly better

— Elon Musk (@elonmusk) December 24, 2018

Yes, full flow, gas-gas, staged combustion. Will take us time to work up to 300 bar. That is a mad level.

— Elon Musk (@elonmusk) December 22, 2018

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