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Delta IV Medium+ (4,2), coded Delta 9240, had the same CBC and DCSS as the Medium, but with the addition of two Orbital ATK-built 1.5-m (60-in) diameter solid rocket booster Graphite-Epoxy Motors (GEM-60s) strap-on boosters to increase payload capacity to 6,150 kg to GTO.
The Delta IV Medium (also referred to as 'single stick' [34] [35]) was available in four configurations: Medium, Medium+ (4,2), Medium+ (5,2), and Medium+ (5,4). [36] The Delta IV Medium (Delta 9040) was the most basic Delta IV. It featured a single CBC and a modified Delta III second stage, with 4-meter liquid hydrogen and liquid oxygen tanks ...
The Delta IV originally had two main versions which allowed the family to cover a range of payload sizes and masses: the Medium (which had four configurations) and Heavy. [2] Since September 2019, only the Heavy remained active, with payloads that would previously fly on Medium moving to either the existing Atlas V or the forthcoming Vulcan .
For the Delta IV Medium configuration, a tapering interstage was employed to transition between the 5-meter diameter of the first stage and the smaller 4-meter diameter of the DCSS. In contrast, the Delta IV Heavy configuration and some Delta IV Medium+ configurations, with larger payload capacities, utilized a cylindrical interstage that ...
Delta IV-M CCAFS SLC-37B USA-167 (DSCS-3 A3) Classified GTO: US Air Force: Success [21] Military communications satellite, First Delta IV Medium launch, First USAF EELV mission 297 March 31, 2003 22:09 Delta II 7925-9.5 CCAFS SLC-17A USA-168 2,032 kg MEO: US Air Force: Success [22] Navigation satellite 298 June 10, 2003 17:58 Delta II 7925-9.5
The Delta IV Heavy, a massively powerful rocket, is scheduled to launch Tuesday, a day after Palm Beach County will see a partial solar eclipse. Massive Delta IV Heavy rocket may be seen from Palm ...
As of October 2018, only the Delta IV remains in production. Single-stick versions of Delta IV was retired by United Launch Alliance (ULA) in 2019 and replaced by the ULA Atlas V, leaving the Delta IV Heavy the only remaining operational member of the Delta family, flying US national security missions.
The Delta IV Heavy rocket has three Delta IV core stages together. According to the ULA website, each rocket engine produces up to 702,000 pounds of thrust. With this performance, one can see why ...