A total of 32 SR‑71 Blackbirds were built.

Quick Scoop

  • Lockheed produced 32 SR‑71 airframes in total for the United States Air Force.
  • The breakdown was 29 single‑seat SR‑71A operational aircraft, 2 SR‑71B two‑seat trainers, and 1 SR‑71C hybrid trainer airframe.
  • These aircraft were built in the 1960s during the Cold War as ultra‑fast, high‑altitude strategic reconnaissance platforms, and they remained in service (including NASA use) into the late 1990s.

In aviation forums and enthusiast discussions, “how many SR‑71 were built” almost always gets the same answer: 32 total airframes, with most being SR‑71A operational jets and only a handful of trainer variants.

TL;DR: 32 SR‑71s were built in total: 29 A‑models, 2 B‑model trainers, and 1 C‑model hybrid trainer.

Information gathered from public forums or data available on the internet and portrayed here.