List of Delta IV Heavy launches explained

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.^[1] ^[2] It was manufactured by United Launch Alliance and was first launched in December 2004 and was retired after its last flight on 9th April 2024.^[3]

Launch history


Flight	Date	Payload ^[4]	Mass	Launch site	Outcome
1	21 December 2004
2	11 November 2007
3	18 January 2009	Orion 6 / Mentor 4 (USA-202 / NROL-26)
4	21 November 2010	Orion 7 / Mentor 5 (USA-223 / NROL-32)
5	20 January 2011	KH-11 Kennen 15 (USA-224 / NROL-49)
6	29 June 2012	Orion 8 / Mentor 6 (USA-237 / NROL-15)
7	26 August 2013	KH-11 Kennen 16 (USA-245 / NROL-65)
8	5 December 2014	Orion Exploration Flight Test-1 (EFT-1)	^[5]
9	11 June 2016	Orion 9 / Mentor 7 (USA-268 / NROL-37)
10	12 August 2018	Parker Solar Probe
11	19 January 2019
12	11 December 2020	Orion 10 / Mentor 8 (USA-268/ NROL-44)^[6] ^[7]
13	26 April 2021	KH-11 Kennen 17 (NROL-82)		Vandenberg, SLC-6
14	24 September 2022	KH-11 Kennen 18 (NROL-91)		Vandenberg, SLC-6
15	22 June 2023	Orion 11 / Mentor 9 (NROL-68)^[8]		Cape Canaveral, SLC-37B
16	9 April 2024	Orion 12 / Mentor 10 (NROL-70)		CCSFS, SLC-37B

Notes and References

Web site: Mission Status Center . Spaceflight Now. 26 July 2014. The ULA Delta 4-Heavy is currently the world's largest rocket, providing the nation with reliable, proven, heavy lift capability for our country's national security payloads from both the east and west coasts..
News: Falcon Heavy, SpaceX's Big New Rocket, Succeeds in Its First Test Launch. The New York Times. 6 February 2018. 6 February 2018. The Falcon Heavy is capable of lifting 140,000 pounds to low-Earth orbit, more than any other rocket today.. Chang. Kenneth.
http://www.boeing.com/news/releases/2004/q4/nr_041222m.html "Boeing Delta IV Heavy Achieves Major Test Objectives in First Flight"
Web site: Krebs. Gunter. Delta-4. Gunter's Space Page. 15 March 2018.
Web site: NASA Orion Exploration Flight Test-1 PRESS KIT. 12. NASA. December 2014.
Web site: 27 October 2020. Launch Schedule. 31 October 2020 . Spaceflight Now.
Web site: 30 October 2020. Launch Mission Execution Forecast. 31 October 2020. 45th Weather Squadron - Patrick Air Force Base.
News: Delta 4-Heavy rocket lifts off with NRO spy satellite . June 22, 2023 . June 27, 2023 . Stephen . Clark . Spaceflight Now.