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SVTPerformance's Chain of Restaurants
Road Side Pub
Science question of the day: Why was the SR-71 Blackbird painted black?
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<blockquote data-quote="James Snover" data-source="post: 16289917" data-attributes="member: 67454"><p>GNBRETT and a couple others got it right: heat reduction via radiation. Everybody thinks black is the worst color for keeping cool because you put your hand on a black car, it burns. The trick is: that is heat that was absorbed, and now being re-radiated back out. The secret is that black both gains and loses heat faster than any other color. So if you are going to be picking up a lot of heat, say from air friction of half-a-psi at 80,000 feet at Mach 3.2, black is the best way to get rid of it.</p><p></p><p>It was a few months later they figured out they could add stuff to the paint for radar absorption.</p><p></p><p></p><p>Sent from my iPhone using svtperformance.com</p></blockquote><p></p>
[QUOTE="James Snover, post: 16289917, member: 67454"] GNBRETT and a couple others got it right: heat reduction via radiation. Everybody thinks black is the worst color for keeping cool because you put your hand on a black car, it burns. The trick is: that is heat that was absorbed, and now being re-radiated back out. The secret is that black both gains and loses heat faster than any other color. So if you are going to be picking up a lot of heat, say from air friction of half-a-psi at 80,000 feet at Mach 3.2, black is the best way to get rid of it. It was a few months later they figured out they could add stuff to the paint for radar absorption. Sent from my iPhone using svtperformance.com [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Science question of the day: Why was the SR-71 Blackbird painted black?
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