Family-level launch record combining canonical variants, historical missions, public cadence forecasts, and available payload performance specs.
Historical missions are grouped by actual launch year. Forecast cadence uses family-level launch-rate rows.
| Year | Historical missions | Forecast launches |
|---|---|---|
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 3 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
Payload capacity by variant and target orbit when structured capacity rows are available.
| Variant | Orbit | Capacity | Altitude | Inclination | Source |
|---|---|---|---|---|---|
No performance specsNo structured payload capacity rows are linked to this vehicle family. | |||||
Latest launched missions using variants in this family.
| Mission | Variant | Launch |
|---|---|---|
| USA 353 Mission | Delta 4H B | Apr 9, 2024 |
| USA 345 Mission | Delta 4H B | Jun 22, 2023 |
| USA 338 Mission | Delta 4H B | Sep 24, 2022 |
| USA 314 Mission |
Canonical variants rolled up into this launch vehicle family.
| Variant | Stages | Missions | Status |
|---|---|---|---|
Delta 4H | Not stated | 8 | Retired |
Delta 4H A | Not stated | 5 | Retired |
Delta 4H B | Not stated | 3 | Retired |
Delta 4M | Not stated | 3 | Retired |
Delta 4H A |
| Apr 26, 2021 |
| USA 311 Mission | Delta 4H A | Dec 11, 2020 |
| GPS III SV02 Mission | Delta 4M+(4,2) A | Aug 22, 2019 |
| WGS 10 | Delta 4M+(5,4) A | Mar 16, 2019 |
| USA 290 Mission | Delta 4H A | Jan 19, 2019 |
Upcoming mission rows with announced launch timing.
| Mission | Variant | Announced |
|---|---|---|
No forecasted missionsNo upcoming announced mission rows are linked to this vehicle family. | ||
Delta 4M+(4,2) | Not stated | 13 | Retired |
Delta 4M+(4,2) A | Not stated | 2 | Retired |
Delta 4M+(5,2) | Not stated | 1 | Retired |
Delta 4M+(5,2) A | Not stated | 2 | Retired |
Delta 4M+(5,4) | Not stated | 4 | Retired |
Delta 4M+(5,4) A | Not stated | 4 | Retired |
United Launch Alliance launches Delta IV vehicles from SLC-37 at Cape Canaveral and from SLC-6 at Vandenberg Space Force Base, California.
Space Launch Complex-37 was mothballed in 1971 and was retrofitted by Boeing in 1998 to support the Delta IV.
The first operational Delta IV Heavy was launched on 2007-11-10 carrying a Defense Support Program satellite.
A United Launch Alliance Delta IV Heavy launch carrying NROL-70 was planned for Thursday, 2024-03-28 at 1:40 p.m. EDT from SLC-37.
A United Launch Alliance Delta IV Heavy launch carrying NROL-70 was planned for Tuesday, 2024-04-09 at 12:53 p.m. EDT pending range approval.
The launch of a United Launch Alliance Delta IV Heavy carrying the NROL-70 mission for the National Reconnaissance Office was planned for Tuesday, 2024-04-09 at 12:53 p.m. EDT pending range approval.
There have been 44 Delta IV launches to date, all successful, for customers including the Air Force, Space Force, National Reconnaissance Office, NASA, and commercial entities.
R/S RocketShip delivered stages of the ULA Delta IV Heavy for NROL-70 from the factory to Cape Canaveral for Horizontal Integration Facility processing.
The Delta IV Heavy launch carrying NROL-70 was scrubbed due to an issue with the gaseous nitrogen pipeline that provides pneumatic pressure to the launch vehicle systems.
Delta IV launched NASA’s first Orion spacecraft on an uncrewed flight test and launched the Parker Solar Probe.
The first operational Delta IV Heavy was successfully launched on 2007-11-10 carrying a Defense Support Program satellite.
ULA launches its Delta IV vehicles from Launch Complex 37 at Cape Canaveral and LC-6 at Vandenberg.
Each of the three Delta IV Heavy common booster core RS-68A engines delivers 319,896 kg (312.3 kilo-Newtons) of thrust at sea level.
Space Systems Command (SSC) of the U.S. Space Force, the National Reconnaissance Office, and United Launch Alliance prepared to launch NROL-70 aboard the final Delta IV Heavy from SLC-37B at Cape Canaveral.
Each RS-68A engine on the three Delta IV Heavy common booster cores delivers 319,896 kg (312.3 kilo-Newtons) of thrust at sea level.
A United Launch Alliance Delta IV Heavy carrying the NROL-70 mission for the National Reconnaissance Office was scrubbed due to an issue with a gaseous nitrogen pipeline that provides pneumatic pressure to the launch vehicle systems.
ULA successfully launched the first operational Delta IV Heavy on 2007-11-10, carrying a Defense Support Program satellite.
There have been 44 Delta IV launches to date, all successful, for the Air Force, Space Force, National Reconnaissance Office, NASA, and commercial customers.
Stages of the Delta IV Heavy for NROL-70 were delivered by the R/S RocketShip from the factory to Cape Canaveral and taken to the Horizontal Integration Facility for pre-launch processing.
United Launch Alliance has conducted 44 Delta IV launches to date, all successful, for Air Force, Space Force, National Reconnaissance Office, NASA, and commercial customers.