Titan IIID

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.

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

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.

Launch history

Main article: List of Titan launches

Date/Time (GMT)	Launch Site	S/N	Payload	Outcome	Remarks
15 June 1971 18:41	VAFB LC-4E	3D-1	OPS-8709 (KH-9)	Success
20 January 1972 18:36	VAFB LC-4E	3D-2	OPS-1737 (KH-9)	Success
7 July 1972 17:46	VAFB LC-4E	3D-5	OPS-7293 (KH-9)	Success
10 October 1972 18:03	VAFB LC-4E	3D-3	OPS-8314 (KH-9)	Success
9 March 1973 21:00	VAFB LC-4E	3D-6	OPS-8410 (KH-9)	Success
13 July 1973 20:22	VAFB LC-4E	3D-7	OPS-8261 (KH-9)	Success
10 November 1973 20:12	VAFB LC-4E	3D-8	OPS-6630 (KH-9)	Success
10 April 1974 20:20	VAFB LC-4E	3D-9	OPS-6245 (KH-9)	Success
29 October 1974 19:30	VAFB LC-4E	3D-4	OPS-7122 (KH-9)	Success
8 June 1975 18:30	VAFB LC-4E	3D-10	OPS-6381 (KH-9)	Success
4 December 1975 20:30	VAFB LC-4E	3D-13	OPS-5547 (KH-9)	Success
8 July 1976 18:30	VAFB LC-4E	3D-14	OPS-4699 (KH-9)	Success
19 December 1976 18:19	VAFB LC-4E	3D-15	OPS-5705 (KH-11)	Success
27 June 1977 18:30	VAFB LC-4E	3D-17	OPS-4800 (KH-9)	Success
26 March 1978 18:40	VAFB LC-4E	3D-20	OPS-0460 (KH-9)	Success
14 June 1978 18:23	VAFB LC-4E	3D-18	OPS-4515 (KH-11)	Success
16 March 1979 18:30	VAFB LC-4E	3D-21	OPS-3854 (KH-9)	Success
7 February 1980 21:10	VAFB LC-4E	3D-19	OPS-2581 (KH-11)	Success
18 June 1980 18:30	VAFB LC-4E	3D-16	OPS-3123 (KH-9)	Success
3 September 1981 18:29	VAFB LC-4E	3D-22	OPS-3984 (KH-11)	Success
11 May 1982 18:35	VAFB LC-4E	3D-24	OPS-5642 (KH-9)	Success
17 November 1982 21:18	VAFB LC-4E	3D-23	OPS-9627 (KH-11)	Success