Launch of a Titan IIID
Function	Expendable launch system
Manufacturer	Martin Marietta
Country of origin	United States
Size
Height	36 m (118 ft)
Diameter	3.05 m (10.0 ft)
Mass	612,990 kg (1,351,410 lb)
Stages	Two
Capacity
Payload to LEO
Mass	12,300 kg (27,100 lb)
Associated rockets
Family	Titan
Launch history
Status	Retired
Launch sites	SLC-4E, Vandenberg AFB
Total launches	22
Success(es)	22
First flight	15 June 1971
Last flight	17 November 1982
Boosters (Stage 0) – UA1205
No. boosters	Two
Powered by	off
Maximum thrust	5,849 kN (1,315,000 lbf)
Specific impulse	263 sec
Burn time	115 seconds
Propellant	Solid
First stage
Powered by	2 LR87-11
Maximum thrust	2,340 kN (530,000 lbf)
Specific impulse	302 sec
Burn time	147 seconds
Propellant	N2O4 / Aerozine 50
Second stage
Powered by	1 LR91-11
Maximum thrust	454 kN (102,000 lbf)
Specific impulse	316 sec
Burn time	205 seconds
Propellant	N2O4 / Aerozine 50
[edit on Wikidata]

The Titan IIID or Titan 3D was an American expendable launch system, part of the Titan rocket family. 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.^[1]

Part of the Titan rocket family, the Titan IIID first flew on 15 June 1971, launching the first KH-9 satellite.^[2] It was retired from service in 1982, and replaced by the uprated Titan 34D. All launches occurred from Space Launch Complex 4E at Vandenberg Air Force Base.

Media related to Titan IIID at Wikimedia Commons

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