Rocket file · LV-399
Thor Delta A
Thor Delta A is an expendable launch vehicle built by McDonnell Douglas. It stands 31.0 m tall, lifts 250 kg to low Earth orbit, first flew on 2 October 1962. It has flown 2 times with 2 successes, a success rate of 100.0%. 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 A
American orbital launch vehicle family with Thor first stage and a delta second stage.
Upcoming flights
Manifest
Thor Delta A is retired, and no flight is filed.
All upcoming launchesThor Delta A in the archive
From NASA's public image library and Wikimedia Commons. Each photo shows the credit its licence asks for and links back to where it came from.
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Common questions
- How many times has Thor Delta A flown?
- 2 times, with 2 successes and 0 failures.
- What is Thor Delta A's success rate?
- 100.0%. That's 2 successful flights out of 2 attempts.
- How much can Thor Delta A lift to orbit?
- Launch Library 2 lists Thor Delta A at 250 kg to low Earth orbit and 68 kg to geostationary transfer orbit.
- Is Thor Delta A reusable?
- No. Launch Library 2 lists Thor Delta A as expendable, so no stage is recovered to fly again.