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Vandenberg WTR

Site · USA

Original archive entry. The text, images and links below are kept as they were written.

Launch area for submarine-launched missiles down Western Test Range.

Country
USA
Launch Sites
Vandenberg

Chronology

81 events

1962 Q4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1962 Q4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1962 Q4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1962 Q4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1967 May 17

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Antelope 4 - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1967 June 21

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Antelope 6 - . Nation: USA. Agency: USN. Apogee: 10 km (6 mi).

1967 June 21

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Antelope 5 - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1968

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A1.
  • ISEP 6 Mk 2 RV - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1971 April 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Safeguard M1-7 Target mission - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1971 May 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Safeguard M1-8 Target mission - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1971 November 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Safeguard M2-5 Target mission - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1971 November 12

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A2.
  • Safeguard M2-8 Target mission - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1971 December 8

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: EAG-154. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Safeguard M2-3 Target mission - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 February 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 598. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 February 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 598. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 February 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 598. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 February 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 598. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 February 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 598. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 June 9

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 June 9

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 June 9

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 June 9

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 June 9

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 601. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 601. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 601. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 601. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 15

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 601. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1974 October 24

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: C-5A. LV Family: Minuteman. Launch Vehicle: Minuteman 1.
  • Minuteman I missile air-launch demonstration. - . Nation: USA. Agency: USAF AFSC. Apogee: 6.00 km (3.70 mi).

    As an early air mobile flight demonstration of the feasibility of launching a ballistic missile from a wide-bodied aircraft, a Minuteman I missile was dropped from an Air Force C-5A over water. Ignited at 8,000 feet, the Minuteman rose to 20,000 feet before expending its propellant and falling into the ocean 20 miles from Vandenberg AFB. SAMSO's Deputy for Minuteman at Norton AFB, California, completed the necessary work for the air mobile demonstration in just over two months. The data gathered from this first live demonstration of the air mobile concept will be used in SAMSO's Advanced ICBM Technology (M-X) program that will determine technology and basing concept for the next generation of U.S. land-based strategic missiles.

1975 June 18

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 602. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1975 June 18

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 602. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1975 June 18

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 602. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1975 June 18

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 602. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1975 June 18

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 602. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 January 20

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 January 20

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 January 24

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 600. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 January 24

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 600. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 September 2

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 September 2

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 September 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 609. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 September 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 609. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1976 November 23

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 655. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-25? Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1976 November 23

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 655. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-25? Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1977 June 16

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1977 June 16

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1977 June 16

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1977 June 16

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1977 June 16

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 610. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1978 July 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 618. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1978 July 7

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 618. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1978 July 12

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 611. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1978 July 12

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 611. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1978 July 12

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 611. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 4

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 608. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1983 December 6

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • WTR to Wake - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1984 June 3

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • WTR to Wake - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1984 July 2

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • WTR to Wake? - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1988 May 14

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 March 19

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • Operational test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1991 March 19

Launch Site: Vandenberg. Launch Complex: Vandenberg WTR. Launch Platform: SSBN UNK. LV Family: Trident. Launch Vehicle: Trident C-4.
  • Operational test - . 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).

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).

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.
  • 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 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 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 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.

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 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).

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).