Titan IIID was flown 22 times with KH-9 and KH-11 satellites between 1971 and 1982, all successful launches.

[1] Essentially a Titan IIIC with the Transtage removed, it was designed for heavy LEO payloads.

The rocket had two UA1205 solid fuel boosters, the first stage was equipped with two LR-87-AJ11 engines and the second stage had a single LR-91-AJ11 engine.

[2] It was retired from service in 1982, and replaced by the uprated Titan 34D.

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