Tags: Rocket.
The Delta C or Thor-Delta C was an American expendable launch system used for thirteen orbital launches between 1963 and 1969. It was a member of the Delta family of rockets.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. The baseline Delta C used an Altair-2 third stage whilst the Delta C1 had an FW-4D third stage which provided a higher payload capacity than the Altair.
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