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Delta IV Medium+ (5,4)

Delta IV Medium+ (5,4) was the highest-performance single-core Delta IV, combining one Common Booster Core, four GEM 60 solid motors, a five-metre cryogenic upper stage, and a five-metre payload fairing. Eight vehicles flew successfully from 2009 through 2019, all carrying Wideband Global SATCOM spacecraft.

Delta IV Medium+ (5,4)
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 IV M+(5,4)Delta IV Medium Plus 5,4Delta 4 Medium+ (5,4)
Family Name
Delta IV Medium+
Full Name
Delta IV Medium+ (5,4)
Status
retired
Type
rocket
Variant Name
(5,4)

Details

Description
Delta IV Medium+ (5,4) was the highest-performance single-core Delta IV, combining one Common Booster Core, four GEM 60 solid motors, a five-metre cryogenic upper stage, and a five-metre payload fairing. Eight vehicles flew successfully from 2009 through 2019, all carrying Wideband Global SATCOM spacecraft.
Dimensions
Diameter M
5.1
First Flight Year
2,009
Last Flight Year
2,019
Manufacturer
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    • Nested value
    • Nested value
  • Entries
    • Nested value
    • Nested value
    • Nested value
    Name
    Delta IV Medium+ (5,4) RS-68A configuration
    Notes
    ULA mission sources identify RS-68A as the Common Booster Core engine for later Delta IV Medium+ (5,4) WGS missions; the existing family-level RS-68/RS-68A baseline is preserved for earlier mixed-era flights.
Rocket Specs
Payload Capacity Kg
Gto
6,890
Leo
13,370
Reusability
expendable
Stages Count
2
Strap On Boosters Count
4

Links

Assets & Meta

Creation Time
July 14, 2026 at 08:52:11 UTC
Updated Time
August 13, 2026 at 21:05:44 UTC

Other

Search Name
Delta IV Medium+ (5,4) Delta IV M+(5,4) Delta IV Medium Plus 5,4 Delta 4 Medium+ (5,4)