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Convair B-36 Peacemaker

The Convair B-36 Peacemaker was an American long-range strategic bomber built by Convair and operated by the United States Air Force from 1948 to 1959.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 11, 2026|2 min read| Fact-checked

The Convair B-36 Peacemaker was an American long-range strategic bomber built by Convair and operated by the United States Air Force from 1948 to 1959. It was designed for intercontinental missions and became the largest mass-produced piston-engine aircraft, with a wingspan unmatched among combat aircraft. The B-36 served as a key component of early Cold War nuclear deterrence but was never used in combat.

Development and design

The B-36 was developed in response to a wartime U.S. Army Air Forces request for a bomber with intercontinental range. Its design emphasized extremely long range and large payload capacity, and later variants added jet engines to improve performance.

Operational service

The aircraft entered operational service in 1948 with Strategic Air Command and became part of the early U.S. nuclear deterrent. It remained in service until 1959, when newer jet bombers such as the B-52 Stratofortress surpassed it in performance.

Specifications and record-setting size

The B-36 was notable for its very large wingspan of 230 feet (70 m), long range, and heavy bomb load. Sources describe it as the largest mass-produced piston aircraft and among the largest bombers ever built.

Legacy

The B-36 is remembered as an early Cold War symbol of U.S. strategic air power. Its combination of piston engines and later jet assist made it a transitional aircraft between the propeller and jet eras.

Key facts

  • The Convair B-36 Peacemaker was a long-range strategic bomber operated by the U.S. Air Force from 1948 to 1959.
  • It was the largest mass-produced piston-engine aircraft and had the longest wingspan of any combat aircraft.
  • The B-36 was designed for intercontinental missions and could carry nuclear or conventional bombs.
  • It served as a Cold War deterrent but was never used in combat.
  • A total of 384 aircraft were built.
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Canadian context

The B-36 has little direct Canadian connection, but it is relevant to Canadian readers as a major early Cold War bomber in North American air strategy and nuclear deterrence.

Frequently asked questions

What was the Convair B-36 Peacemaker?
It was a long-range American strategic bomber designed for intercontinental missions and operated by the U.S. Air Force from 1948 to 1959.
Why was it called Peacemaker?
Peacemaker was an unofficial nickname used for the aircraft; sources note it came from Convair’s naming efforts and was widely associated with the bomber.
How many B-36s were built?
A total of 384 aircraft were built, according to one source; another states more than 380 were produced.
What made the B-36 notable?
It was the largest mass-produced piston-engine aircraft and had the longest wingspan of any combat aircraft.
Was the B-36 used in combat?
No. It served as a strategic deterrent during the early Cold War but was never used in combat.
When was it retired?
The B-36 was withdrawn from service in 1959.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Convair_B-36_Peacemaker
    Supports: Basic overview, service dates, production total, piston-aircraft size record, wingspan, intercontinental capability
  2. National Museum of the United States Air Force — https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/197636/convair-b-36j-peacemaker/
    Supports: Development history, first flight, service entry, engine configuration, speed, range, payload, dimensions, production total
  3. Pima Air & Space Museum — https://pimaair.org/museum-aircraft/convair-b-36j/
    Supports: Largest bomber claim, piston-engine status, design purpose, production total, retirement
  4. YouTube — https://www.youtube.com/watch?v=CR3KZphmvnU
    Supports: Never used in combat, wingspan, intercontinental role, Cold War deterrent role