Delta IV was a group of five expendable launch systems in the Delta rocket family, flown 45 times between 2002 and 2024. Boeing designed it for the Evolved Expendable Launch Vehicle program, and it became a United Launch Alliance product in 2006. It came in two main versions: Medium, with four configurations, and Heavy, which strapped two extra Common Booster Cores to a central core. Each core was powered by an RS-68 engine burning liquid hydrogen and liquid oxygen, with a cryogenic second stage using an RL10B-2 engine. Built at ULA's facility in Decatur, Alabama, and finished at the launch site, it launched mainly military payloads for the United States Air Force, along with other government payloads and a single commercial satellite. The final Medium flight took place in 2019 and the final Heavy flight on April 9, 2024.
Facts
Engine Class Connections
Exemplifies
Source Delta IV (Wikipedia)
Of Make
Source Delta IV (Wikipedia)
In the Other Atlases
Same As
Also in Space and Astronomy Atlas: the same subject.
Manufactured By
Also in Business Atlas: the manufacturer of this subject.
Source Delta IV (Wikipedia)Lead, build siteQuote, Lead, build site
Delta IV vehicles were built in the ULA facility in Decatur, Alabama.
Originated In
Also in Geography Atlas: where this subject originated.
Source Delta IV (Wikipedia)Lead, customersQuote, Lead, customers
The Delta IV was primarily a launch vehicle for military payloads for the United States Air Force
Sources
1. Delta IV (Wikipedia)
History, first launch
In 2002, the Delta IV was first launched
Lead, final flight
The final flight of Heavy was in April 2024.
Common Booster Core, fuel
Each CBC was powered by one Aerojet Rocketdyne RS-68 engine, which burns liquid hydrogen and liquid oxygen.
Lead, build site
Delta IV vehicles were built in the ULA facility in Decatur, Alabama.
Lead, customers
The Delta IV was primarily a launch vehicle for military payloads for the United States Air Force
In Group: Orbital Launch Vehicles, Lead, vehicle class
Delta IV was a group of five expendable launch systems in the Delta rocket family.
Exemplifies: Orbital Spaceflight, Lead, launch vehicle
Delta IV was a group of five expendable launch systems in the Delta rocket family.
has versions: Delta IV Heavy, Lead, versions
The Delta IV had two main versions, which allowed the family to cover a range of payload sizes and masses: Medium, which had four configurations, and Heavy.
View the SourceReader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.