Atlas E/F
< Atlas E
| Function | Expendable launch system Sounding rocket |
|---|---|
| Manufacturer | Convair General Dynamics Lockheed |
| Country of origin | United States |
| Launch history | |
| Status | Retired |
| Launch sites | LC-576 and SLC-3, VAFB |
| Total launches | 65 |
| Success(es) | 56 |
| Failure(s) | 9 |
| First flight | 6 April 1968 |
| Last flight | 24 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. 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.