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wumpus
on May 1, 2017
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SpaceX Falcon 9 first stage has landed at LZ-1 [vi...
The grid fins have paint like that, which is why they catch on fire.
dflock
on May 1, 2017
[–]
They're aluminium underneath the paint - and that
also
melts a bit on a high speed GTO reentry, hence the likely switch to titanium grid fins in the future.
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