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Delta 2000 Series

The Delta 2000 series combined the extended long-tank Thor-derived first stage with the Rocketdyne RS-27 main engine, three or nine Castor II strap-on motors, and the 2.44-metre TR-201-powered second stage. Two-stage and three-stage configurations flew, the latter using TE-364-3 or TE-364-4 solid motors. Forty-four vehicles flew from January 1974 through October 1981 across five exact configurations.

Delta 2000 Series
NASA / Tony Gray · NASA/KSC asset; NASA’s KSC-07PD-2590 catalog identifies the exact Delta II/Dawn launch and credits the photograph to NASA / Tony Gray. NASA’s current Images and Media Usage Guidelines generally permit factual or informational/editorial use with NASA attribution and without implying NASA endorsement. NASA insignia, launch-provider or other third-party marks, identifiable-person rights, and any commercial, promotional, merchandise, or protected-rights use remain separately restricted or clearance-sensitive; verify before such use. · Source
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Identity

Aliases
Delta 2000-seriesRS-27 DeltaExtended Long Tank Delta 2000
Family Name
Delta 2000
Full Name
Delta 2000 Series
Status
retired
Type
rocket
Variant Name
2000 series

Details

Description
The Delta 2000 series combined the extended long-tank Thor-derived first stage with the Rocketdyne RS-27 main engine, three or nine Castor II strap-on motors, and the 2.44-metre TR-201-powered second stage. Two-stage and three-stage configurations flew, the latter using TE-364-3 or TE-364-4 solid motors. Forty-four vehicles flew from January 1974 through October 1981 across five exact configurations.
First Flight Year
1,974
Last Flight Year
1,981
Manufacturer
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable

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Creation Time
July 18, 2026 at 06:38:02 UTC
Updated Time
July 19, 2026 at 10:47:17 UTC

Other

Search Name
Delta 2000 Series Delta 2000-series RS-27 Delta Extended Long Tank Delta 2000