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Thor-Delta B Launch Vehicle

Thor-Delta B, also called Operational Delta, was a three-stage development of Delta A with an improved AJ10-118A second stage. Nine vehicles flew for NASA from December 1962 through March 1964. Eight launch vehicles completed their planned ascent, while the final flight failed after a third-stage malfunction.

Thor-Delta B Launch Vehicle
NASA Marshall Space Flight Center · NASA asset; NASA’s 9141922 catalog identifies Marshall Space Flight Center (MSFC) and describes the exact Thor/Able 3 launch carrying Explorer VI, with no third-party photographer or copyright holder listed. NASA’s current Images and Media Usage Guidelines generally permit factual or informational/editorial use with NASA attribution and without implying NASA endorsement. Commercial, promotional, merchandise, logo/insignia, or other protected-rights uses may require separate clearance; verify any third-party rights if later identified. · Source
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Identity

Aliases
Delta BThor Delta BOperational Delta
Family Name
Thor-Delta B
Full Name
Thor-Delta B Launch Vehicle
Status
retired
Type
rocket
Variant Name
B

Details

Description
Thor-Delta B, also called Operational Delta, was a three-stage development of Delta A with an improved AJ10-118A second stage. Nine vehicles flew for NASA from December 1962 through March 1964. Eight launch vehicles completed their planned ascent, while the final flight failed after a third-stage malfunction.
First Flight Year
1,962
Last Flight Year
1,964
Manufacturer
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable
Stages Count
3

Links

Assets & Meta

Creation Time
July 18, 2026 at 05:34:50 UTC
Updated Time
July 19, 2026 at 10:00:58 UTC

Other

Search Name
Thor-Delta B Launch Vehicle Delta B Thor Delta B Operational Delta