Atlas E/F

Atlas E/F
FunctionExpendable launch system
Sounding rocket
ManufacturerConvair
General Dynamics
Lockheed
Country of originUnited States
Launch history
StatusRetired
Launch sitesLC-576 and SLC-3, VAFB
Total launches65
Success(es)56
Failure(s)9
First flight6 April 1968
Last flight24 March 1995

The Atlas E/F (or SB-1A) was an American expendable launch system and sounding rocket built using parts of decommissioned SM-65 Atlas missiles. It was a member of the Atlas family of rockets.

The first stage was built using parts taken from decommissioned Atlas-E and Atlas-F missiles, with various solid propellant upper stages used depending on the requirements of the payload.[1] The Atlas E/F was also used without an upper stage for a series of re-entry vehicle tests. On a single launch, an RM-81 Agena liquid-propellant upper stage was used.[2]