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Delta IV Medium

Delta IV Medium was the unaugmented single-Common-Booster-Core configuration with a four-metre cryogenic upper stage and four-metre payload fairing. Three vehicles flew successfully from 2003 through 2006, with no strap-on solid motors.

Identity

Aliases
Delta IV Medium (no SRMs)Delta 4 Medium
Family Name
Delta IV
Full Name
Delta IV Medium
Reusability
expendable
Slug
delta-iv-medium
Status
retired
Type
rocket
Variant Name
Medium

Details

Description
Delta IV Medium was the unaugmented single-Common-Booster-Core configuration with a four-metre cryogenic upper stage and four-metre payload fairing. Three vehicles flew successfully from 2003 through 2006, with no strap-on solid motors.
Diameter M
5.1
Engines
  • Count
    1
    Name
    RS-68
    Placement
    core
  • Count
    1
    Name
    RL10B-2
    Placement
    upper
First Flight Year
2,003
Last Flight Year
2,006
Manufacturer Id
jd7atcy8qz2mwf1b5bcd0ckw8s7kp4gj
Operator Id
jd7atcy8qz2mwf1b5bcd0ckw8s7kp4gj
Parent Vehicle Family Id
nd7veg90vregh6hyz85x5dsvr985j89q
Payload Capacity Kg
Gto
4,230
Leo
9,110
Stages Count
2
Strap On Boosters Count
0

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Creation Time
7/14/2026, 8:51:54 AM
Updated Time
7/14/2026, 8:51:54 AM