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The Delta IV Heavy (Delta 9250H) was an expendable heavy-lift launch vehicle, the largest type of the Delta IV family. It had the highest capacity of any operational launch vehicle in the world after the retirement of the Space Shuttle in 2011 until the Falcon Heavy debuted in 2018, and it was the world's third highest-capacity launch vehicle in operation at the time of its retirement in 2024.
Delta IV was a group of five expendable launch systems in the Delta rocket family introduced in the early 2000s. Originally designed by Boeing 's Defense, Space and Security division for the Evolved Expendable Launch Vehicle (EELV) program, the Delta IV became a United Launch Alliance (ULA) product in 2006.
The Delta IV Medium+ (4,2) (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. [7]
The final launch for United Launch Alliance's powerful rocket − Delta IV Heavy − is later this week. And it's one you won't want to miss. At 1:40 p.m. EST Thursday, March 28, 2024, the Delta ...
Mission: ULA's last Delta IV Heavy triple-core rocket will launch on the NROL-70 national security mission. Launch window: 12:53 p.m. EDT Tuesday, April 9 Trajectory: Due east
After a launch attempt March 28, ULA called a scrub minutes before liftoff at 2:47 p.m. EDT for the Delta IV Heavy rocket, which had been dubbed by ULA as "the most metal of rockets." Next attempt ...
A United Launch Alliance (ULA) Delta 4 rocket launched the 10th Wideband Global SATCOM spacecraft on Friday (March 15), which will provide communications for the U.S. military over the next 14 years.
The Delta IV Heavy (Delta 9250H) was an expendable heavy-lift launch vehicle. When it was in service from 2004 to 2024, it was the largest type in the Delta IV family and was the world's second highest-capacity rocket in operation, behind SpaceX 's Falcon Heavy rocket and closely followed by CNSA's Long March 5 rocket.