Homepage The SR-71 RCS was 20 square inches at subsonic speeds, at Mach 3.2 the RCS was 10 square miles. Here’s why.

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Blackbird pilot tells why the SR-71 could fly at Mach 3.55 so long as 427C weren’t exceeded
Cold War Era / Military Aviation / SR-71 Blackbird

The SR-71 RCS was 20 square inches at subsonic speeds, at Mach 3.2 the RCS was 10 square miles. Here’s why.

By 
Linda Sheffield Miller
Jun 16 2025

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