Trident D-5

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Trident D-5

Part of Trident

Trident D-5
Credit: via Andreas Parsch

American intercontinental range, submarine-launched ballistic missile. Deployed March 1990 aboard the new Ohio-class submarines. 336 remain in service in the 2010's as America's seaborne nuclear deterrent.

AKA: Mk. 500;Poseidon D-5;Trident 2;UGM-133A;UGM-96B;W88. Status: Active. First Launch: 1987-01-15. Last Launch: 2018-03-27. Number: 189 . Payload: 1,690 kg (3,720 lb). Gross mass: 59,078 kg (130,244 lb). Height: 13.60 m (44.60 ft). Diameter: 2.11 m (6.92 ft). Span: 2.11 m (6.92 ft). Location: Sunnyvale, CA, USA. Apogee: 1,000 km (600 mi).

In 1971, the US Navy issued a requirement for a submarine-launched, multiple warhead, ballistic missile with intercontinental range and a stellar-inertial navigation system. This would give the Navy capability against Soviet missile siloes and other hardened targets. Lockheed proposed a two-phase program. Trident C-4 would fit in launch tubes in existing submarines, with a range 50% greater than Poseidon. Trident II D-5 would have longer stages, requiring a new class of submarine to be built to accommodate it, but have the desired intercontinental range. Lockheed began development of the Trident II in October 1983. First launch was in January 1987, and first submerged launch in March 1989. This was a failure, revealing problems with the first-stage engine nozzle. Fixing this delayed first patrol of Trident II in the new Ohio-class submarines to March 1990. By then the Cold War was over. Under post-Cold War arms reduction agreements, all Trident C-4's were withdrawn, and only 336 Trident II's, deployed on 14 Ohio-class submarines remained in service. 64 Trident II's aboard four British Vanguard-class submarines constitute that country's nuclear deterrent.

Trident D-5's stellar-inertial navigation system incorporates GPS updates, giving the missiles a 90 m (300 ft) CEP.

Development Cost $: 8,600.000 million. Recurring Price $: 15.053 million in 1982 dollars. Flyaway Unit Cost 1985$: 15.053 million in 1982 dollars. Guidance contractor: Draper, Unisys, Boeing. Standard warhead: 1,690 kg (3,720 lb). Maximum range: 7,400 km (4,500 mi). Number Standard Warheads: 12. Standard RV: Mk. 500. Standard warhead: W88. Warhead yield: 475 KT. CEP: 0.40 km (0.24 mi). Boost Propulsion: Solid rocket. Maximum speed: 29,030 kph (18,030 mph). Initial Operational Capability: 1990. Total Number Built: 857.

Historical Essay © Andreas Parsch

Lockheed-Martin UGM-133 Trident II

The UGM-133 Trident II D-5 is the ultimate SLBM (Submarine-Launched Ballistic Missile) of the U.S. Navy. Attributed with very long range, a high-precision guidance system, and a MIRV (Multiple Independent Reentry Vehicle) warhead, it is probably the most important part of the current nuclear arsenal of the United States.

When the U.S. Navy and Lockheed studied the possibility of an ULMS (Undersea Long-Range Missile System) in the early 1970s, it was decided to develop an improved UGM-73 Poseidon C-3 missile first (this evolved into the UGM-96 Trident I C-4), to be followed later by a much enlarged missile to be deployed on a new class of strategic missile submarines. The first ship of this new SLBM class, the USS Ohio (SSBN-726), was commissioned in November 1981. This ship, as well as the next seven Ohio class SSBNs, was fitted with Trident I missiles, but Lockheed had already begun design of the new D-5 SLBM to make full use of the Ohio's large missile tubes. The formal development contract for the new missile, by then called Trident II, was issued in October 1983. The missile designation UGM-133A was assigned in early 1986, and it's possible that an interim designation of UGM-96B was used before that date. The first Trident II launch occurred in January 1987, and the first submarine launch was attempted by USS Tennessee (SSBN-734, the first D-5 ship of the Ohio class) in March 1989. The latter failed because of problems with the first stage engine nozzle, and these problems delayed the IOC (Initial Operational Capability) of the Trident II until March 1990.

The UGM-133A Trident II D-5 SLBM is a significantly enlarged development of the UGM-96 Trident I C-4. It employs many of the advanced design features of the latter (including the extendable aero-spike, light-weight motor casings, and high-density fuel), and the larger size leads to an increased range of up zo 11100 km (6000 nm). This range enables the Trident II to reach almost every strategic target in the Northern hemisphere when launched from SSBNs sitting in U.S. ports. The MK 6 stellar-inertial navigation system is able to receive GPS (Global Positioning System) updates, thereby increasing accuracy to that of a land-based ICBM, about 90 m (300 ft) CEP (compared to 380 m (1250 ft) for the C-4). The warhead section consists of eight (or 14 in a maximum payload shorter-range configuration) MK 5 independent reentry vehicles, each one carrying a 475 kT W-88 thermonuclear warhead.

The ten newest SSBNs of the 18 Ohio class ships are currently operational with the Trident II D-5, each SSBN having 24 missile tubes. Of the eight older submarines equipped with Trident I C-4, four are currently planned for conversion to the D-5. With the conversion of the LGM-30G Minuteman III ICBMs to single-RV warheads, and the pending retirement of the LGM-118 Peacekeeper, the Trident II will soon be the only MIRVed strategic missile in the US nuclear inventory, and therefore become the most important deterrance weapon. Production of the UGM-133A is continuing, and more than 500 missiles have been built so far.

Specifications

Note: Data given by several sources show slight variations. Figures given below may therefore be inaccurate!

Data for UGM-133A:

Length	13.58 m (44 ft 6.6 in)
Diameter	2.11 m (6 ft 11 in)
Weight	58900 kg (130000 lb)
Range	11100 km (6000 nm)
Speed	> 6000 m-s (20000 ft-s)
Propulsion	1st and 2nd stage: Hercules-Thiokol solid-fueled rocket 3rd stage: United Technologies Corp. solid-fueled rocket
Warhead	8x W-88 thermonuclear (475 kT) in 8x MK 5 RV

Main Sources

[1] James N. Gibson: "Nuclear Weapons of the United States", Schiffer Publishing Ltd, 1996
[2] Norman Friedman: "World Naval Weapons Systems, 1997-98", Naval Institute Press, 1997

More at: Trident II UGM-133.

Family: ICBM, submarine-launched. Country: USA. Launch Sites: Cape Canaveral, Vandenberg, Vandenberg WTR, Cape Canaveral LC46, Cape Canaveral ETR. Stages: D-5-1, D-5-2, Trident St 3. Agency: Lockheed.

1987 January 15 - . 15:25 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 March 17 - . 17:25 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 April 30 - . 20:44 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 June 12 - . 22:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 July 20 - . 20:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 September 8 - . 22:01 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 October 6 - . 17:02 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1987 December 11 - . 13:26 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 January 21 - . 10:08 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5. FAILURE: Failure.

Research and development launch - . Nation: USA. Agency: USN.

1988 April 7 - . 04:59 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 April 28 - . 04:52 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 May 26 - . 02:07 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 July 7 - . 22:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5. FAILURE: Failure.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 20 km (12 mi).

1988 August 27 - . 20:04 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 September 19 - . 17:44 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5. FAILURE: Failure.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 20 km (12 mi).

1988 November 7 - . 16:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 December 16 - . 12:49 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 January 9 - . 10:52 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 January 26 - . 09:07 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC46. LV Family: Trident. Launch Vehicle: Trident D-5.

Research and development launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 March 21 - . 16:20 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5. FAILURE: Failure.

PEM-1 operational test launch - . Nation: USA. Agency: USN. Apogee: 0 km (0 mi).

1989 August 2 - . 15:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-2 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 August 15 - . 21:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5. FAILURE: Failure.

PEM-4 operational test launch - . Nation: USA. Agency: USN. Apogee: 0 km (0 mi).

1989 December 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-5 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 December 13 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-11 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1989 December 15 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-3 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 January 15 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-7 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 January 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-6 operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 February 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

PEM-8 test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 February 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-1 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 March 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-3 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 September 26 - . 15:55 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-4 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 November 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 November 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 November 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 November 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1990 November 28 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-5 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 April 15 - . 22:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-6 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 July 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 July 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 July 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 July 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 August 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-7 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 November 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-8 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 November 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 November 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 November 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 November 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 February 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 February 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 February 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 February 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 June 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 June 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 June 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 June 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 July 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-9 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 August 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 August 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 August 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 August 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 September 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 September 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

CINC Evaluation Test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 September 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 September 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

CET - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 October 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

DASO-10 demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1992 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1993 July 7 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1993 July 7 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1993 August 20 - . 18:27 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1993 November 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

PGW test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1994 January 20 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1994 January 20 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1994 January 20 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1994 January 20 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1994 May 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S28. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1994 June 20 - . 03:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S28. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1994 December 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 740. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1995 January 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1995 January 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1995 April 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1995 April 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1995 July 24 - . 22:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S29. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1995 August 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S29. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1995 December 7 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 741. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 April 21 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 April 21 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 July 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 July 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 735. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 October 28 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1996 October 28 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1997 March 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1997 March 18 - . 00:16 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1997 May 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 742. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1997 October 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S30. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1997 October 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S30. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1997 December 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

77ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1998 March 7 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

78? - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1998 March 7 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident D-5 78? operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1998 March 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

80? - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1998 March 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident D-5 80? operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 February 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 740. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident D-5 82? operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 February 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 740. LV Family: Trident. Launch Vehicle: Trident D-5.

82? - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 April 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident D-5 84? operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 April 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

84? - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1999 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2000 April 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 742. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident D-5 (88ss) operational test launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2000 April 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 742. LV Family: Trident. Launch Vehicle: Trident D-5.

88ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2000 September 21 - . 20:50 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S31. LV Family: Trident. Launch Vehicle: Trident D-5.

90ss - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

2001 May 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

91ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2001 June 25 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2001 June 25 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2001 June 25 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 March 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 732. LV Family: Trident. Launch Vehicle: Trident D-5.

95ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 April 24 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 April 24 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 April 25 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 October 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 742. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2002 December 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 733. LV Family: Trident. Launch Vehicle: Trident D-5.

Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2003 April 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 741. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2003 April 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 741. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2003 November 5 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

104ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2003 November 5 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2004 February 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2004 February 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2004 November 1 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 733. LV Family: Trident. Launch Vehicle: Trident D-5.

108ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2004 November 1 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 733. LV Family: Trident. Launch Vehicle: Trident D-5.

107ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2005? - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2005 March 2 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2005 March 2 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2005 October 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S28. LV Family: Trident. Launch Vehicle: Trident D-5.

- (111ss) - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi). Launched from HMS Vanguard..

2005 December 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 740. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2006 June 20 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 732. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2006 June 20 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 732. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2006 November 21 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

117ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2006 November 21 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

116ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2007 May 15 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

FCET-37 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2007 May 15 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2007 November 30 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 730. LV Family: Trident. Launch Vehicle: Trident D-5.

- (120ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2008 May 8 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

- (122ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2008 May 8 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 739. LV Family: Trident. Launch Vehicle: Trident D-5.

Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2008 August 25 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

- (123ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2008 August 25 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 743. LV Family: Trident. Launch Vehicle: Trident D-5.

- (124ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2008 Dec - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident D-5.

- (125ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2009 February 13 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 731. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident Test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). Test.

2009 May 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S29. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident Test - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi). Test.

2009 September 3 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 5? RV - . Mass: 1,000 kg (2,200 lb). Nation: USA. Agency: USN. Operational test.

2009 September 4 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 5? RV - . Mass: 1,000 kg (2,200 lb). Nation: USA. Agency: USN. Operational test.

2009 December 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 732. LV Family: Trident. Launch Vehicle: Trident D-5.

130ss - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2010 June 8 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV x 8 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). Operational test launch.

2010 June 8 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV x 8 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). Operational test launch.

2010 June 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV x 8 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). Operational test launch.

2010 June 9 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV x 8 - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). Operational test launch.

2011 March 1 - . 21:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 733. LV Family: Trident. Launch Vehicle: Trident D-5.

8 x Mk 5 RV - . Nation: USA. Apogee: 1,000 km (600 mi). Operational test.

2011 - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident D-5.

- (136ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 February 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

8 x USN Mk 5 RV? - . Nation: USA. Apogee: 1,000 km (600 mi). Operational test..

2012 Mar? - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident D-5.

- (138ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 April 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

- (140ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 April 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

- (139ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 April 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

- (142ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 April 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 738. LV Family: Trident. Launch Vehicle: Trident D-5.

- (141ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2012 October 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S30. LV Family: Trident. Launch Vehicle: Trident D-5.

- (143ss) - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

2013? - . Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident D-5.

- (144ss) - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

2013 September 10 - . 21:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Pad: SSBN. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

FCET-47? USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Missile test - (146ss).

FCET-47? USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Missile test. Apparent high altitude rocket burns were observed from the Canary Islands. In the 1970s Poseidon MIRV reentries were observed in this area, it was speculated that the event may represent a classified Trident missile launch..

2013 September 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Pad: SSBN. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

FCET-48? USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Missile test- (148ss).

2013 September 12 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Pad: SSBN. Launch Platform: SSBN 734. LV Family: Trident. Launch Vehicle: Trident D-5.

FCET-48? USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Missile test- (147ss).

2014 June 2 - . Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 4 RV? ) - . Nation: USA. Missile test- (149ss).

2014 June 2 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Pad: SSBN 736. Launch Platform: SSBN 736. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 4 RV? ) - . Nation: USA. Apogee: 1,000 km (600 mi). Missile test.

2014 September 12 - . 13:00 GMT - . Launch Site: Pacific Ocean. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Three Trident missiles were launched from off the coast of Southern California towards the mid-Pacific, from an unidentified Trident submarine; at least one of the launches was widely observed along the US west coast..

2014 September 12 - . 13:00 GMT - . Launch Site: Pacific Ocean. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Trident test flight..

2014 September 12 - . 13:00 GMT - . Launch Site: Pacific Ocean. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV - . Nation: USA. Apogee: 1,000 km (600 mi). Trident test flight..

2015 February 22 - . 00:00 GMT - . Launch Site: Pacific Ocean. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV ) - . Nation: USA. Apogee: 1,000 km (600 mi). Test flight..

2015 February 22 - . 00:00 GMT - . Launch Site: Pacific Ocean. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

USN RV ) - . Nation: USA. Apogee: 1,000 km (600 mi). Test flight..

2015 November 8 - . 02:00 GMT - . Launch Site: Point Mugu. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 5 RV x14 - . Nation: USA. Apogee: 1,000 km (600 mi).
Trident II D-5 submarine-launched ballistic routine launch which hit the headlines. Missiles were launched from the submarine USS Kentucky on November 8 and 9. The missiles were launched from near San Clemente Island off the coast of California and flew to Kwajalein Atoll in the central Pacific. The first missile was launched just after local sunset and its expanding exhaust gases were illuminated by the sun, causing widespread UFO reports across the southwestern United States. The 2-dimensional projection on the sky of the missile's westward motion, as seen from the mostly southwest-facing southern California coast, fooled many observers into thinking the missile was flying north along the coast. California observers were also able to see the deployments of the MIRV reentry vehicles as the vehicle's final stage approached the horizon.

2015 November 9 - . 20:00 GMT - . Launch Site: Point Mugu. Launch Platform: SSBN 737. LV Family: Trident. Launch Vehicle: Trident D-5.

USN Mk 5 RV x14 - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted Kwajalein..

2016 March 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident RVs x ? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in S Atlantic..

2016 March 15 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident RVs x ? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in S Atlantic..

2016 March 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident RVs x ? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in S Atlantic..

2016 June 20 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S31. LV Family: Trident. Launch Vehicle: Trident D-5.

British Trident missile test failure - . Nation: UK. Agency: RN. Apogee: 100 km (60 mi).
In January 2017 it was reported that on this date a Trident missile launched from HMS Vengeance on the Atlantic Missile Range failed. The missile was said to have veered toward Florida before being destroyed by range safety. The government was said to have covered up the failure.

2017 February 14 - . 11:30 GMT - . Launch Site: Point Arguello. Launch Platform: Sub. LV Family: Trident. Launch Vehicle: Trident D-5.

RV x 8? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in Wake Island..

RV x 8? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in Wake Island..

2017 February 15 - . Launch Site: Point Arguello. Launch Platform: Sub. LV Family: Trident. Launch Vehicle: Trident D-5.

RV x 8? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in Wake Island..

2017 February 16 - . Launch Site: Point Arguello. Launch Platform: Sub. LV Family: Trident. Launch Vehicle: Trident D-5.

RV x 8? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted in Wake Island..

2018 March 27 - . 02:40 GMT - . Launch Site: Pacific Ocean. Launch Platform: USS Nebras. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident RV x n? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted Kwajalein?..

2018 March 27 - . 02:40 GMT - . Launch Site: Pacific Ocean. Launch Platform: USS Nebras. LV Family: Trident. Launch Vehicle: Trident D-5.

Trident RV x n? - . Nation: USA. Apogee: 1,000 km (600 mi). Test mission. Impacted Kwajalein?..

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