Delta D


Delta D
Delta D
Launch of a Delta D with Intelsat I
Launch of a Delta D with Intelsat I
Function Expendable launch system
Country of origin  United States
Launch history
Status Retired
Launch sites Cape Canaveral LC-17
Total launches 2
Successes 2
Maiden flight 19 August 1964
Last flight 6 April 1965

The Delta D, Thrust Augmented Delta or Thor-Delta D was an American expendable launch system used to launch two communications satellites in 1964 and 1965. It was derived from the Delta C, and was a member of the Delta family of rockets.

The three-stage core vehicle was essentially the same as the Delta C. The first stage was a Thor missile in the DSV-2A configuration, and the second stage was the Delta D, which was derived from the earlier Delta. An Altair-2 SRM was used as a third stage. The main difference between the Delta C and Delta D was the presence of three Castor-1 solid rocket boosters, clustered around the first stage.

Both Delta D launches were conducted from Cape Canaveral Air Force Station Launch Complex 17A. The first, on 19 August 1964, carried the Syncom 3 satellite. The last, on 6 April 1965, carried the first commercial communications satellite, Intelsat I.

References


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