launch services

Ula Delta Iv M

Missions → DMSP-F17

Delta IV Medium was a medium-lift expendable launch vehicle offering both 4 m and 5 m payload fairings. The two-stage stack comprised a cryogenic Common Booster Core burning LH2/LOX through an RS-68A engine, topped by a Delta Cryogenic Second Stage (DCSS) powered by an RL10B-2.^[1] The base Medium variant carried approximately 8,510-8,600 kg to LEO; the M+(4,2) variant, adding two GEM-60 solid strap-on boosters, raised that figure to around 11,700 kg.^[1]

The family flew 32 times between November 2002 and August 2019, when the final Delta IV Medium mission ended the variant line.^[2]^[3] Meteorological EO missions flown include GOES-14 and GOES-15.^[1] The Delta IV Heavy is a separate vehicle and remains out of scope for this entry.

Supply chain position

launched DMSP-F17

Sources

[1]Delta IV, Wikipediacommunity2026-06-16
[2]End of an era for ULA as the last Delta IV Medium rocket leaves launch pad, The Register, Aug 2019community2026-06-16
[3]ULA last Delta 4-Medium set for launch, Spaceflight Now, Aug 2019community2026-06-16

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Ula Delta Iv M. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/launch_services/ula-delta-iv-m (CC BY 4.0)

BibTeX

@misc{eoatlas:launch_services:ula-delta-iv-m,
  title = {Ula Delta Iv M},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/launch_services/ula-delta-iv-m}
}