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Delta 1604 Launch Vehicle

Delta 1604 was a three-stage Delta 1000-series configuration with the MB-3-powered extended long-tank first stage, six Castor II strap-on motors, the 1.65-metre AJ10-118F second-stage and fairing arrangement, and a TE-M-364-4 solid third stage. Two vehicles successfully launched Explorer 47 and Explorer 50 into highly elliptical magnetospheric orbits in 1972 and 1973.

Delta 1604 Launch Vehicle
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 Model 1604Model 1604
Family Name
Delta 1604
Full Name
Delta 1604 Launch Vehicle
Status
retired
Type
rocket
Variant Name
1604

Details

Description
Delta 1604 was a three-stage Delta 1000-series configuration with the MB-3-powered extended long-tank first stage, six Castor II strap-on motors, the 1.65-metre AJ10-118F second-stage and fairing arrangement, and a TE-M-364-4 solid third stage. Two vehicles successfully launched Explorer 47 and Explorer 50 into highly elliptical magnetospheric orbits in 1972 and 1973.
First Flight Year
1,972
Last Flight Year
1,973
Manufacturer
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable
Stages Count
3

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Creation Time
July 18, 2026 at 06:28:27 UTC
Updated Time
July 19, 2026 at 10:46:02 UTC

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Search Name
Delta 1604 Launch Vehicle Delta Model 1604 Model 1604