![[Military] The SR-71's wings were corrugated which went against core principles of](https://i.redditmedia.com/Jyc5JhK25fUdyyjCM20RSFzmfx1rZV3f8qZZAbBGb6s.jpg?fit=crop&crop=faces%2Centropy&arh=2&w=320&s=46a585da99d334c73ff6e53b9653a99a)
[Military] The SR-71's wings were corrugated which went against core principles of aerodynamics, but were needed as the intense heat during Mach 3 would have caused a smooth wings to split whereas a corrugated ones could expand vertically and horizontally
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