Rocket file · LV-400
Thor Delta B
Thor Delta B is an expendable launch vehicle built by McDonnell Douglas. It stands 31.0 m tall, lifts 370 kg to low Earth orbit, first flew on 13 December 1962. It has flown 9 times with 8 successes, a success rate of 88.9%. It has nothing on the Launch Library 2 schedule right now.
Specification
Vehicle spec sheet
As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.
Flight record
Reliability
About Thor Delta B
American orbital launch vehicle family with Thor first stage and a delta second stage.
Upcoming flights
Manifest
Thor Delta B is retired, and no flight is filed.
All upcoming launchesThor Delta B in the archive
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Common questions
- How many times has Thor Delta B flown?
- 9 times, with 8 successes and 1 failures.
- What is Thor Delta B's success rate?
- 88.9%. That's 8 successful flights out of 9 attempts.
- How much can Thor Delta B lift to orbit?
- Launch Library 2 lists Thor Delta B at 370 kg to low Earth orbit and 68 kg to geostationary transfer orbit.
- Is Thor Delta B reusable?
- No. Launch Library 2 lists Thor Delta B as expendable, so no stage is recovered to fly again.