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Old 08-01-2018, 11:53 PM   #56 (permalink)
oldtamiyaphile
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Quote:
Originally Posted by JSH View Post
As do school bus manufacturers
That's like saying manufactures prefer not to use full boat tails, as though a pure single function is the only goal.

The bus is white because chrome would add thousands to the cost of each bus for virtually no benefit.


Quote:
Originally Posted by freebeard View Post
NASA and SpaceX seem to prefer white.
Nope. I've never seen a satelite painted white. They often spend a lot of money on real gold for the lowest possible emissivity (0.05).



Rockets are white for cost, simplicity and/or simple practicality reasons. A cheap chrome wrap probably won't stand up to mach 30.

The whole emissivity argument is probably a non starter anyway since there's no real chrome in chrome wrap. The top layer at least is plastic which has the same emmisivity as car clear coat.
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Last edited by oldtamiyaphile; 08-02-2018 at 12:31 AM..
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