Support Equipment

Delta IV Medium+ (4,2)

Also known as
  • Delta IV Medium Plus (4,2)
  • Delta IV M+(4,2)
  • Delta IV Medium+ 4,2

Delta IV Medium+ (4,2) is United Launch Alliance's medium-lift orbital launch configuration with one Common Booster Core, two solid rocket motors, and a four-meter Delta Cryogenic Second Stage. ULA used it to deliver the GPS III SV02 spacecraft Magellan to medium Earth orbit from Cape Canaveral.

Delta IV Medium+ (4,2), Medium-lift orbital launch vehicle, Support Equipment
Image source: Delta IV Medium+ (4,2) NROL-22 launch.jpg
Profile / Specs

Specifications

Launch configuration
One Common Booster Core with two solid rocket motors
Upper stage
Delta Cryogenic Second Stage with RL10 propulsion
Payload fairing
Four-meter composite payload fairing
Mission profile
GPS III SV02 delivery to medium Earth orbit
Launched Satellites

This Delta IV configuration carried the GPS III SV02 mission to medium Earth orbit.

Launched itemItem typeLaunch evidence
Global Positioning System III / GPS Block III, Military navigation satellite family, Support EquipmentGlobal Positioning System III / GPS Block IIIMilitary navigation satellite family

ULA says this configuration delivered the second GPS III spacecraft, Magellan, to medium Earth orbit for the U.S. Air Force Space and Missile Systems Center.

Sources: Delta IV GPS III - United Launch Alliance (ULA) Rocket Launch

Service And Conflict Use

Service History

In service
Entered service in 2002 as part of the Delta IV family and flew in medium-lift and heavy-lift configurations for U.S. government launch customers.
Used by
United States Air Force, National Reconnaissance Office, NASA
Media

Delta IV Medium+ (4,2) Videos

Delta IV Medium+ (4,2) Images

Delta IV Medium+ (4,2), Medium-lift orbital launch vehicle, Support Equipment - view 1
Source: Delta IV Medium+ 4,2 launches with GOES O.jpg
Related Weapon Systems
Global Positioning System III / GPS Block III, Military navigation satellite family, Support EquipmentSupport EquipmentGlobal Positioning System III / GPS Block IIIMilitary navigation satellite familyGlobal Positioning System III / GPS Block III is the Lockheed Martin-built U.S. military navigation-satellite family that modernizes the GPS constellation with M-code, the L1C civil signal, improved accuracy, and stronger anti-jamming performance. It is the generation launched from 2018 onward before the GPS III Follow-On line, and it serves as a precision position, navigation, and timing space vehicle rather than a battlefield weapon in the catalog sense.
LAU-118/A missile launcher, Reusable single-rail aircraft missile launcher, Support EquipmentSupport EquipmentLAU-118/A missile launcherReusable single-rail aircraft missile launcherThe LAU-118/A missile launcher is a reusable U.S. aircraft launcher for the AGM-88 HARM that provides the missile's mechanical and electrical interface with the host aircraft. Air Force and Federal Register sources describe it as HARM launch hardware for aircraft such as the F-16 and F/A-18, while Navy documentation describes a reusable launcher family with structural fairings, tracks, suspension lugs, insert plugs, and internal electrical components.

Sources

Delta IV GPS III - United Launch Alliance (ULA) Rocket LaunchPublisher: United Launch Alliance | Note: Supports the Delta IV Medium+ (4,2) configuration, the GPS III SV02 Magellan mission, and the launch from Space Launch Complex-37 to medium Earth orbit. | Accessed: 2026-06-27Delta IV - United Launch AlliancePublisher: United Launch Alliance | Note: Supports Delta IV family background, service history, common booster core, and Delta Cryogenic Second Stage propulsion context. | Accessed: 2026-06-27Delta IV Medium+ (4,2) NROL-22 launch.jpgPublisher: Wikimedia Commons | Note: Supports image provenance for the launch photo used on this page. | Accessed: 2026-06-27Delta IV Medium+ 4,2 launches with GOES O.jpgPublisher: Wikimedia Commons | Note: Supports image provenance for the secondary gallery image used on this page. | Accessed: 2026-06-27