2019-01-23

@Robotbeat @zackpio Actual tanks are fine

@Teslarati ~1750K is peak heating expected on about 20% of Starship for LEO entry, ~1600K on 20%. Rest drops below 1450K, so no heat shield needed. Radiative cooling at T^4 takes care of 60% of the ship. Another reason for steel.

@nextspaceflight @Teslarati I just heard. 50 mph winds broke the mooring blocks late last night & fairing was blown over. Will take a few weeks to repair.

@Teslarati 310S stainless is better for high temp outer skin, as it can take ~1450 Kelvin, so active cooling with cryogenic fuel only has to mitigate 300 degrees of delta temp