This variant has 4 solid boosters and has the configuration of (5,4)
Scale 1:400
Delta IV is an
expendable launch system in the
Delta rocket family. The rocket's main components are designed by
Boeing's
Defense, Space & Security division and built in the
United Launch Alliance (ULA) facility in
Decatur, Alabama. Final assembly is completed at the launch site by ULA. The rocket was designed to launch payloads into orbit for the United States Air Force
Evolved Expendable Launch Vehicle (EELV) program and for the commercial satellite business. The Delta IV is available in five versions: Medium, Medium+ (4,2), Medium+ (5,2), Medium+ (5,4), and
Heavy, to cover a range of payload size and weight. The Delta IV was primarily designed to satisfy the needs of the U.S. military.
The rocket is assembled at the
Horizontal Integration Facility for launches from
SLC-37B at
Cape Canaveral and in a similar facility for launches from
SLC-6 at
Vandenberg Air Force Base.