Polaris

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Submarine-launched ballistic missile. Country: USA. Status: Active.

Probably the most technically innovative program in history, Polaris integrated solid-propellant, inertially-guided intermediate range ballistic missiles with nuclear submarines that could remain submerged for months at a time. All of these were new technologies, but the first ship was underway only three years after go-ahead.

Manufacturer: Lockheed. Launches: 631. Failures: 67. Success Rate: 89.38%. First Launch Date: 1958-01-11. Last Launch Date: 2007-09-28. Launch data is: continuing. Development Cost $: 2,231.900 million. in: 1961 average dollars. Recurring Price $: 2.813 million. Total Number Built: 1092. Total Development Built: 87. Total Production Built: 1005. Flyaway Unit Cost $: 1.460 million. in: 1965 unit dollars. Cost comments: Development + flyaway costs for Polaris A-1,-2,-3. Version:

Polaris TV. Missile. Status: Retired 1958.

Single stage test vehicle to test thrust-vectoring system.

Launches: 6. First Launch Date: 1958-01-11. Last Launch Date: 1958-05-08. Apogee: 30 km (18 mi). Liftoff Thrust: 220.000 kN (49,450 lbf). Total Mass: 5,000 kg (11,000 lb). Core Diameter: 0.79 m (2.59 ft). Total Length: 8.00 m (26.20 ft).

Stage1: 1 x Polaris TV-1. Gross Mass: 8,300 kg (18,200 lb). Empty Mass: 1,450 kg (3,190 lb). Motor: 1 x TX-33. Thrust (vac): 285.000 kN (64,070 lbf). Burn time: 23 sec. Length: 6.00 m (19.60 ft). Diameter: 0.79 m (2.59 ft). Propellants: Solid.

Version:

Polaris AX. Missile. Status: Retired 1959.

2 stage experimental vehicle

Launches: 17. Failures: 12. First Launch Date: 1958-09-24. Last Launch Date: 1959-10-02. Apogee: 500 km (310 mi). Liftoff Thrust: 0 N ( lbf). Total Mass: 10,000 kg (22,000 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 7.60 m (24.90 ft).

Stage1: 1 x A1P-1. Gross Mass: 8,300 kg (18,200 lb). Empty Mass: 1,450 kg (3,190 lb). Motor: 1 x A1P-1. Length: 3.80 m (12.40 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x Polaris AX-2. Gross Mass: 4,300 kg (9,400 lb). Empty Mass: 951 kg (2,096 lb). Motor: 1 x A1P-2. Length: 2.00 m (6.50 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Version:

Polaris A1.
SSBN at sea
Credit - Lockheed-Martin
Missile. IOC: 1960. Status: Retired 1965. Department of Defence Designation: UGM-27A. Popular Name: Polaris A-1.

Two stage vehicle consisting of 1 x A1P + 1 x A1P stage 2

Historical Essay © Andreas Parsch

Lockheed UGM-27 Polaris A-1

The Polaris was the first SLBM (Submarine-Launched Ballistic Missile) deployed by the U.S. Navy. Their inherent immunity to pre-emptive strikes has made SLBMs one of the most important assets of the U.S. nuclear armed forces ever since.

Like all U.S. military services, the U.S. Navy experimented with ballistic missiles in the immediate post-war years, mainly by using captured German A-4/V-2 rockets. However, it soon became clear that the hazard involved with liquid-propellant rockets ruled out this technology for shipboard use. In the early 1950s, solid-fuel rocket technology had advanced to a point where long-range missiles would be feasible. In 1955, however, the Navy was ordered to develop a derivative of the liquid-fueled SM-78/PGM-19 Jupiter IRBM as a sea-launched ballistic missile. In early 1956, the Navy was granted permission to develop a solid-fueled Jupiter derivative instead (to be called Jupiter S), and in December 1956, the Navy was finally allowed to drop out of the Jupiter program and develop a completely new solid-fueled ballistic missile. The new program was named Polaris, and development contracts were given to Lockheed (missile) and Aerojet (propulsion). From the beginning, Polaris was planned for launch from submarines. This made the missile effectively undetectable before launch, and had the additional advantage of providing a significantly more stable platform for an inertial navigation system, thereby increasing accuracy. Unlike other U.S. Navy missiles of the time, Polaris didn't receive a formal missile designation (like SSM-N-x or USM-N-x). Instead, the Polaris (and future SLBMs) were known by simple letter-number combinations, starting with A-1 (or A1, as the dash is frequently omitted) for the first Polaris version.

Polaris A-1 was significantly smaller and lighter than the proposed Jupiter S, allowing much more missiles to be carried by a submarine of a given size. Because starting a rocket motor inside a submarine was considered too dangerous, a so-called "cold launch" method was developed, where the missile is ejected from the vertical launch tube by gas pressure before the motor is ignited. The first launch of a Polaris AX test vehicle in September 1958 was unsuccessful, and the first fully successful flight only occurred in April 1959, after 5 other failures. In September 1959, the first Polaris A-1X tactical prototype missile, which included the inertial navigation system, was successfully launched, and tests of the A-1X continued through 1960. In the meantime, the Navy had built its first ballistic missile submarine, the USS George Washington (SSBN-598), by fitting an existing SSN, the USS Scorpion (SSN-589), with a completely new center section with 16 missile launch tubes. The first successful underwater launch of a Polaris missile was accomplished by this ship on 20 July 1960, and in November 1960, the Polaris A-1 SLBM became operational on SSBN-598. On 6 May 1962, USS Ethan Allen (SSBN-608) successfully launched a Polaris A-1 with a live nuclear warhead in the United States' nuclear test range in the Pacific. This was the first and only full live test of a U.S. strategic missile.

The Polaris A-1 was powered by a two-stage solid-propellant rocket motor by Aerojet General, both stages using four nozzles with thrust-vectoring for flight control. Its inertial navigation system (designed by MIT, manufactured by General Electric and Hughes) guided the missile to an accuracy of about 900 m (3000 ft) CEP at a maximum range of 2200 km (1200 nm). This poor accuracy, coupled with a relatively low-yield W-47 (600 kT) thermonuclear warhead, made the Polaris unsuitable for strikes against hardened strategic targets. However, because the SLBM force could not effectively taken out by the enemy, it was the ideal retaliation weapon, and therefore very important for the Cold War concept of MAD (Mutually Assured Destruction).

Launches: 99. Failures: 20. Success Rate: 79.80%. First Launch Date: 1959-09-21. Last Launch Date: 1965-11-12. Apogee: 500 km (310 mi). Liftoff Thrust: 289.200 kN (65,015 lbf). Total Mass: 12,700 kg (27,900 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 8.54 m (28.01 ft). Span: 1.37 m (4.49 ft). Standard warhead mass: 500 kg (1,100 lb). Maximum range: 1,900 km (1,100 mi). Number Standard Warheads: 1. Standard RV: Mk. 20A. Standard warhead: EC47. Standard warhead yield: 600 KT. Standard warhead CEP: 8.06 km (5.00 mi). Boost Propulsion: Solid rocket. Guidance: Inertial. Maximum speed: 9,680 kph (6,010 mph).

Stage1: 1 x A1P-1. Gross Mass: 8,300 kg (18,200 lb). Empty Mass: 1,450 kg (3,190 lb). Motor: 1 x A1P-1. Length: 3.80 m (12.40 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x Polaris AX-2. Gross Mass: 4,300 kg (9,400 lb). Empty Mass: 951 kg (2,096 lb). Motor: 1 x A1P-2. Length: 2.00 m (6.50 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Version:

Polaris A2.
Polaris A2
Credit - US Navy
Missile. IOC: 1962. Status: Retired 1971. Department of Defence Designation: UGM-27B. Popular Name: Polaris A-2.

Historical Essay © Andreas Parsch

Lockheed UGM-27 Polaris A-2

Given the very short development time of Polaris (only four years from development contract to operational deployment), it is not surprising that the A-1 version had room for improvements. The Polaris A-2 had a slightly longer first stage, using the full length of the missile tubes, and a lighter second-stage motor casing made of fiberglass instead of steel. These features increased range to 2800 km (1500 nm), the performance originally envisioned by the Navy. The A-2 also had new electronics for higher reliability. The first A-2 was launched in November 1960, and deployment of this version began in June 1962.

Launches: 205. Failures: 16. Success Rate: 92.20%. First Launch Date: 1960-11-10. Last Launch Date: 1971-11-12. Apogee: 1,000 km (600 mi). Liftoff Thrust: 310.800 kN (69,871 lbf). Total Mass: 13,600 kg (29,900 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 9.45 m (31.00 ft). Span: 1.37 m (4.49 ft). Standard warhead mass: 500 kg (1,100 lb). Maximum range: 2,820 km (1,750 mi). Number Standard Warheads: 1. Standard RV: Mk. 20B. Standard warhead: W47. Standard warhead yield: 800 KT. Standard warhead CEP: 2.90 km (1.80 mi). Boost Propulsion: Solid rocket. Guidance: Inertial. Cost comments: See Polaris A-1 for Polaris program total costs.

Stage1: 1 x A2P-1. Gross Mass: 10,100 kg (22,200 lb). Empty Mass: 1,450 kg (3,190 lb). Motor: 1 x A2P-1. Length: 4.30 m (14.10 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x Polaris A2-2. Gross Mass: 4,200 kg (9,200 lb). Empty Mass: 860 kg (1,890 lb). Motor: 1 x X-250. Length: 2.10 m (6.80 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Version:

Polaris A2E. Missile. Status: Retired 1969.

Launches: 22. Failures: 1. First Launch Date: 1965-03-05. Last Launch Date: 1969-11-15. Apogee: 1,000 km (600 mi). Liftoff Thrust: 0 N ( lbf). Total Mass: 14,700 kg (32,400 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 9.40 m (30.80 ft). Maximum range: 4,600 km (2,800 mi).

Stage1: 1 x A2P-1. Gross Mass: 10,100 kg (22,200 lb). Empty Mass: 1,450 kg (3,190 lb). Motor: 1 x A2P-1. Length: 4.30 m (14.10 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x Polaris A2E-2. Gross Mass: 4,200 kg (9,200 lb). Empty Mass: 860 kg (1,890 lb). Motor: 1 x X-250. Length: 2.10 m (6.80 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Version:

Polaris A3.
Polaris A3
Credit - US Navy
Missile. IOC: 1964. Status: Retired 1987. Department of Defence Designation: UGM-27C. Popular Name: Polaris A-3.

Two stage vehicle consisting of 1 x A3P + 1 x X-260

Historical Essay © Andreas Parsch

Lockheed UGM-27 Polaris A-3

The Polaris A-3 was a significantly enhanced missile with all the extensive changes, which weren't incorporated in the A-1/2 because of the very short development time frame. The A-3 saved weight by using fiberglass casings for both stages, and a 60% lighter guidance section. The second stage used a completely new motor by Hercules, with a high-energy propellant and a single nozzle with fluid-injection thrust-vectoring control. These features increased range to 4600 km (2500 nm). The A-3 also had a completely new warhead section with three reentry vehicles, each carrying a 200 kT W-58 warhead. The inertial navigation system was also gradually improved, leading to an accuracy of about 600 m (2000 ft) CEP. The first (partially successful) test of a Polaris A-3 occurred in August 1962, and testing continued through 1964. The A-3 became operational in September 1964 aboard USS Daniel Webster (SSBN-626).

In June 1963, all Polaris missiles were designated in the UGM-27 series as follows:

SLBM Designation	New Designation
A-1	UGM-27A
A-2	UGM-27B
A-3	UGM-27C

The UGM-27C eventually replaced all earlier UGM-27A/B missiles, and by 1974, only the Polaris A-3 was still in service. By that time, however, some A-3s had already been replaced by the new UGM-73 Poseidon C-3 SLBM. The final Polaris A-3 was withdrawn from service in October 1981. Between 1959 and 1968, Lockheed had produced about 1150 Polaris missiles of all versions, the majority (640+) being UGM-27Cs.

Specifications

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

Data for UGM-27A/B/C:

	UGM-27A	UGM-27B	UGM-27C
Length	8.69 m (28 ft 6 in)	9.45 m (31 ft)	9.86 m (32 ft 4 in)
Diameter	1.37 m (4 ft 6 in)
Weight	13000 kg (28800 lb)	14700 kg (32500 lb)	16200 kg (35700 lb)
Speed	12900 km/h (8000 mph)
Ceiling	640 km (400 miles)	800 km (500 miles)
Range	2200 km (1200 nm)	2800 km (1500 nm)	4600 km (2500 nm)
Propulsion	1st stage: Aerojet General solid-fueled rocket 2nd stage: Aerojet General solid-fueled rocket		1st stage: Aerojet General solid-fueled rocket 2nd stage: Hercules solid-fueled rocket
Warhead	W-47 thermonuclear (600 kT)		3x W-58 thermonuclear (200 kT) in 3x MK 2 RV

Main Sources

[1] James N. Gibson: "Nuclear Weapons of the United States", Schiffer Publishing Ltd, 1996
[2] Norman Friedman: "US Naval Weapons", Conway Maritime Press, 1983
[3] Bill Gunston: "The Illustrated Encyclopedia of Rockets and Missiles", Salamander Books Ltd, 1979
[4] Ren� J. Francillon: "Lockheed Aircraft since 1913", Putnam, 1987

Launches: 271. Failures: 16. Success Rate: 94.10%. First Launch Date: 1962-08-07. Last Launch Date: 1987-05-10. Apogee: 1,000 km (600 mi). Associated Spacecraft: Early Spring. Liftoff Thrust: 355.900 kN (80,010 lbf). Total Mass: 15,870 kg (34,980 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 9.45 m (31.00 ft). Span: 1.37 m (4.49 ft). Standard warhead mass: 760 kg (1,670 lb). Maximum range: 4,600 km (2,800 mi). Number Standard Warheads: 3. Standard RV: Mk.100. Standard warhead: W58. Standard warhead yield: 200 KT. Standard warhead CEP: 0.94 km (0.58 mi). Boost Propulsion: Solid rocket. Guidance: Inertial. Cost comments: See Polaris A-1 for Polaris program total costs.

Stage1: 1 x A3P-1. Gross Mass: 11,100 kg (24,400 lb). Empty Mass: 1,270 kg (2,790 lb). Motor: 1 x A3P-1. Length: 4.40 m (14.40 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x STARS-2. Gross Mass: 4,900 kg (10,800 lb). Empty Mass: 815 kg (1,796 lb). Motor: 1 x X-260. Length: 2.30 m (7.50 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Version:

Polaris A3 A3T. Missile.

Two stage test vehicle consisting of 1 x A3P + 1 x X-260

Maximum range: 4,600 km (2,800 mi). Version:

Polaris A3 A3TK. Missile. IOC: 1984.

British version of Polaris A3.

Total Mass: 13,600 kg (29,900 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 9.55 m (31.33 ft). Span: 1.37 m (4.49 ft). Maximum range: 4,630 km (2,870 mi). Number Standard Warheads: 3. Standard warhead yield: 200 KT. Boost Propulsion: Solid rocket. Cruise Propulsion: Solid rocket. Version:

STARS. Test vehicle. Status: Active.

Three stage target vehicle for anti-ballistic missile tests, consisting of a surplus Polaris A3 SLBM (A3P first stage + X-260 second stage) and an Orbus 1 third stage.

Sandia National Laboratories began development of the vehcile in 1985 as an alternative to existing test vehicles using Minuteman 1 surplus rocket stages. The STARS I configuration could boost as single simulated warhead. STARS II added the ODES (Operations and Deployment Experiments Simulator) fourth stage, which simulated the post-boost vehicle of an ICBM and could dispense decoys or multiple simulated warheads.

Launches: 11. Failures: 2. First Launch Date: 1993-02-26. Last Launch Date: 2007-09-28. Apogee: 2,500 km (1,500 mi). Liftoff Thrust: 0 N ( lbf). Total Mass: 16,700 kg (36,800 lb). Core Diameter: 1.37 m (4.49 ft). Total Length: 11.50 m (37.70 ft). Maximum range: 5,500 km (3,400 mi).

Stage1: 1 x A3P-1. Gross Mass: 11,100 kg (24,400 lb). Empty Mass: 1,270 kg (2,790 lb). Motor: 1 x A3P-1. Length: 4.40 m (14.40 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage2: 1 x STARS-2. Gross Mass: 4,900 kg (10,800 lb). Empty Mass: 815 kg (1,796 lb). Motor: 1 x X-260. Length: 2.30 m (7.50 ft). Diameter: 1.37 m (4.49 ft). Propellants: Solid.

Stage3: 1 x Starbird-4. Gross Mass: 500 kg (1,100 lb). Empty Mass: 50 kg (110 lb). Motor: 1 x Orbus 1. Thrust (vac): 88.000 kN (19,783 lbf). Length: 1.20 m (3.90 ft). Diameter: 0.70 m (2.29 ft). Propellants: Solid.

Polaris Chronology

1956 December 17 - Polaris project begun. Navy Special Projects Office authorized Lockheed to proceed with Polaris development, having withdrawn from the Jupiter program earlier.

1958 January 11 - Point Mugu -. FBM Test Agency: USN. Apogee: 500 km (310 mi).

1958 January 17 - Cape Canaveral LC3. Polaris TV 1-204-10 Test mission Agency: USN. Apogee: 500 km (310 mi).

1958 March 23 - San Clemente -. Popup test Agency: USN. Apogee: 500 km (310 mi).

1958 April 11 - San Clemente -. Test mission Agency: USN. Apogee: 500 km (310 mi).

1958 April 18 - Cape Canaveral LC25A. Polaris TV 1-204-11 Test mission Agency: USN. Apogee: 500 km (310 mi).

1958 May 8 - Cape Canaveral LC25A. Polaris TV 1-204-12 Test mission Agency: USN. Apogee: 500 km (310 mi).

1958 September 24 - 17:15 GMT - Cape Canaveral LC25A. Polaris AX-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 12 km (7 mi).

1958 October 15 - Cape Canaveral LC25A. Polaris AX-2 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1958 December 30 - 15:28 GMT - Cape Canaveral LC25A. Polaris AX-3 FAILURE: Failure. Test mission Agency: USN. Apogee: 200 km (120 mi).

1959 January 19 - 15:42 GMT - Cape Canaveral LC25A. Polaris AX-4 FAILURE: Failure. Test mission Agency: USN. Apogee: 200 km (120 mi).

1959 February 27 - 19:16 GMT - Cape Canaveral LC25A. Polaris AX-5 FAILURE: Failure. Test mission Agency: USN. Apogee: 2.00 km (1.20 mi).

1959 April 20 - 15:30 GMT - Cape Canaveral LC25A. Polaris AX-6 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 May 8 - 19:28 GMT - Cape Canaveral LC25A. Polaris AX-8 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 May 18 - 23:16 GMT - Cape Canaveral LC25A. Polaris AX-7 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 June 12 - 18:57 GMT - Cape Canaveral LC25A. Polaris AX-10 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 June 29 - 15:42 GMT - Cape Canaveral LC25A. Polaris AX-9 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 July 15 - 16:59 GMT - Cape Canaveral LC25A. Polaris AX-11 FAILURE: Failure. Test mission Agency: USN. Apogee: 2.00 km (1.20 mi).

1959 August 6 - Cape Canaveral LC25A. Polaris AX-15 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 August 14 - 19:30 GMT - Cape Canaveral LC25B. Polaris AX-13 SMS test Agency: USN. Apogee: 500 km (310 mi).

1959 August 25 - Cape Canaveral LC25A. Polaris AX-18 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 August 27 - 16:52 GMT - ETR Launch Area -. Polaris AX-22 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 September 21 - Cape Canaveral LC29A. Polaris A1X-1 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 September 28 - Cape Canaveral LC25A. Polaris AX-14 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 October 2 - 18:11 GMT - Cape Canaveral LC25A. Polaris AX-20 FAILURE: Failure. Test mission Agency: USN. Apogee: 2.00 km (1.20 mi).

1959 October 12 - 18:18 GMT - Cape Canaveral LC29A. Polaris A1X-2 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1959 November 20 - 17:11 GMT - Cape Canaveral LC29A. Polaris A1X-3 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 December 7 - 20:13 GMT - Cape Canaveral LC29A. Polaris A1X-4 Test mission Agency: USN. Apogee: 500 km (310 mi).

1959 December 16 - 04:50 GMT - Cape Canaveral LC29A. Polaris A1X-6 FAILURE: Failure. Test mission Agency: USN. Apogee: 100 km (60 mi).

1959 December 23 - Cape Canaveral LC25B. Polaris A1X-5 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1960 January 8 - Cape Canaveral LC29A. Polaris A1X-7 Inertial test Agency: USN. Apogee: 500 km (310 mi).

1960 January 13 - 21:07 GMT - Cape Canaveral LC29A. Polaris A1X-8 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 January 20 - Cape Canaveral LC29A. Polaris A1X-9 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 January 27 - Cape Canaveral LC29A. Polaris A1X-10 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 February 4 - 22:19 GMT - Cape Canaveral LC29A. Polaris A1X-12 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 February 10 - Cape Canaveral LC29A. Polaris A1X-11 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 February 26 - Cape Canaveral LC29A. Polaris A1X-13 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1960 March 9 - Cape Canaveral LC25A. Polaris A1X-14 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 March 18 - Cape Canaveral LC25B. Polaris A1X-15 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 March 25 - Cape Canaveral LC25B. Polaris A1X-16 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 March 29 - ETR Launch Area -. Polaris A1X-18 FAILURE: Failure. Integrated test Agency: USN. Apogee: 300 km (180 mi).

1960 April 14 - 22:21 GMT - San Clemente -. Polaris A1X Underwater test Agency: USN. Apogee: 1.00 km (0.60 mi).

1960 April 18 - ETR Launch Area -. Polaris A1X-19 FAILURE: Failure. Test mission Agency: USN. Apogee: 50 km (31 mi).

1960 April 26 - 01:13 GMT - Cape Canaveral LC29A. Polaris A1X-22 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 April 29 - 23:45 GMT - Cape Canaveral LC29A. Polaris A1X-23 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 April 30 - 03:45 GMT - Cape Canaveral LC25A. Polaris A1X-25 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 May 18 - Cape Canaveral LC25B. Polaris A1X-30 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 May 23 - ETR Launch Area -. Polaris A1X-17 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 June 7 - Cape Canaveral LC25A. Polaris A1X-27 FAILURE: Failure. Test mission Agency: USN. Apogee: 50 km (31 mi).

1960 June 23 - 02:22 GMT - ETR Launch Area -. Polaris A1X-32 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 June 23 - 05:52 GMT - Cape Canaveral LC25B. Polaris A1X-34 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 June 30 - San Clemente -. Polaris A1X Test mission Agency: USN. Apogee: 2.00 km (1.20 mi).

1960 July 6 - 15:55 GMT - Cape Canaveral LC25A. Polaris A1X-40 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1960 July 7 - ETR Launch Area -. Polaris A1X-39 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1960 July 15 - 06:10 GMT - Cape Canaveral LC25B. Polaris A1X-42 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 July 19 - 16:00 GMT - Cape Canaveral LC25A. Polaris A1X-41 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 July 20 - 17:39 GMT - ETR Launch Area -. Polaris A1E-1 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 July 20 - 20:34 GMT - ETR Launch Area -. Polaris A1E-2 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 July 30 - 20:20 GMT - ETR Launch Area -. Polaris A1E-4 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 August 1 - 17:10 GMT - ETR Launch Area -. Polaris A1E-3 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1960 August 3 - 00:58 GMT - Cape Canaveral LC25B. Polaris A1X-37 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 August 4 - Cape Canaveral LC25A. Polaris A1X-44 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 August 12 - 18:28 GMT - Cape Canaveral LC25A. Polaris A1X-47 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 August 19 - 03:20 GMT - Cape Canaveral LC25A. Polaris A1X-43 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 August 24 - 20:43 GMT - San Clemente -. Test mission Agency: USN. Apogee: 2.00 km (1.20 mi).

1960 September 2 - Cape Canaveral LC25A. Polaris A1X-45 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 September 13 - 17:55 GMT - ETR Launch Area -. Polaris A1XE-5 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1960 September 15 - 21:28 GMT - ETR Launch Area -. Polaris A1XE-6 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 September 22 - 22:05 GMT - ETR Launch Area -. Polaris A1XE-7 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1960 September 23 - Cape Canaveral LC25A. Polaris A1X-48 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 September 23 - 01:05 GMT - ETR Launch Area -. Polaris A1XE-8 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1960 October 5 - 16:04 GMT - Cape Canaveral LC25A. Polaris A1X-49 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 October 10 - Cape Canaveral LC25A. Polaris A1X-53 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 October 15 - ETR Launch Area -. Polaris A1FP-6 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 October 15 - ETR Launch Area -. Polaris A1FP-5 Operational test Agency: USN. Apogee: 500 km (310 mi).

1960 October 16 - ETR Launch Area -. Polaris A1FP-7 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 October 18 - ETR Launch Area -. Polaris A1FP-8 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 November 7 - 19:00 GMT - Cape Canaveral LC25A. Polaris A1X-46 Test mission Agency: USN. Apogee: 500 km (310 mi).

1960 November 10 - 16:22 GMT - Cape Canaveral LC25A. Polaris A2X-1 Agency: USN. Apogee: 1,000 km (600 mi). Advanced Polaris (A-2) successfully launched on record 1,600-mile flight at AMR.

1960 November 17 - 19:00 GMT - Cape Canaveral LC25A. Polaris A1X-52 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1960 December 5 - Cape Canaveral LC25A. Polaris A2X-2 Agency: USN. Apogee: 1,000 km (600 mi). Polaris A-2 successfully test fired 1,400 nautical miles down AMR.

1960 December 22 - 18:34 GMT - ETR Launch Area -. Polaris A1E-13 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 January 10 - 17:15 GMT - Cape Canaveral LC29A. Polaris A2X-3 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 January 11 - 18:40 GMT - ETR Launch Area -. Polaris A1E-15 FAILURE: Failure. Operational test Agency: USN. Apogee: 20 km (12 mi).

1961 January 14 - ETR Launch Area -. Polaris A1E-14 FAILURE: Failure. Operational test Agency: USN. Apogee: 20 km (12 mi).

1961 February 6 - 21:40 GMT - Cape Canaveral LC25A. Polaris A2X-6 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1961 March 1 - 18:19 GMT - ETR Launch Area -. Polaris A2X-7 Agency: USN. Apogee: 1,000 km (600 mi). The fourth firing of an advanced Polaris A-2, and the first from a ship, was made by the U.S.S. Observation Island as she cruised at 8 knots, 10 miles offshore from Cape Canaveral.

1961 March 9 - ETR Launch Area -. Polaris A2X-8 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 March 15 - Cape Canaveral LC29A. Polaris A2X-10 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 March 23 - 16:25 GMT - ETR Launch Area -. Polaris A1E-16 FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1961 March 23 - 19:25 GMT - ETR Launch Area -. Polaris A1E-17 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 March 23 - 22:41 GMT - ETR Launch Area -. Polaris A1E-18 FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1961 April 6 - ETR Launch Area -. Polaris A1E-19 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 April 11 - 15:40 GMT - Cape Canaveral LC29A. Polaris A2X-12 FAILURE: Failure. Test mission Agency: USN. Apogee: 50 km (31 mi).

1961 April 19 - ETR Launch Area -. Polaris A1E-20 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 1 - Cape Canaveral LC29A. Polaris A2X-16 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 May 3 - 17:00 GMT - ETR Launch Area -. Polaris A1E-22 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 8 - 17:10 GMT - Cape Canaveral LC29A. Polaris A2X-19 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 May 17 - ETR Launch Area -. Polaris A1E-29 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 17 - ETR Launch Area -. Polaris A1E-27 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 17 - ETR Launch Area -. Polaris A1E-33 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 17 - ETR Launch Area -. Polaris A1E-26 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 17 - ETR Launch Area -. Polaris A1E-28 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 May 25 - ETR Launch Area -. Polaris A2X-9 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1961 June 12 - 15:53 GMT - Cape Canaveral LC25A. Polaris A2X-5 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 June 26 - ETR Launch Area -. Polaris A2X-11 FAILURE: Failure. Test mission Agency: USN. Apogee: 500 km (310 mi).

1961 July 13 - Cape Canaveral LC29A. Polaris A2X-20 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 August 2 - Cape Canaveral LC29A. Polaris A2X-21 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-37 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-36 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-43 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-35 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-34 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 12 - ETR Launch Area -. Polaris A1E-42 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 August 18 - ETR Launch Area -. Polaris A2X-22 FAILURE: Failure. Test mission Agency: USN. Apogee: 5.00 km (3.10 mi).

1961 September 29 - 14:00 GMT - Cape Canaveral LC25A. Polaris A1X-50 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 October 4 - 14:22 GMT - ETR Launch Area -. Polaris A2X-15 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 October 16 - 14:54 GMT - ETR Launch Area -. Polaris A1E-38 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 October 23 - 16:38 GMT - ETR Launch Area -. Polaris A2E-X1 (A2X-4) Agency: USN. Apogee: 1,000 km (600 mi). First underwater launching of Navy Polaris A-2, and first firing from submarine, U.S.S. Ethan Allen.

1961 November 3 - 14:01 GMT - ETR Launch Area -. Polaris A1E-39 Agency: USN. Apogee: 500 km (310 mi). Three Polaris A-2 missiles successfully fired within 3-hour period from submarine period from submarine Ethan Allen.

1961 November 3 - 15:30 GMT - ETR Launch Area -. Polaris A1E-40 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 November 3 - 17:00 GMT - ETR Launch Area -. Polaris A1E-41 Operational test Agency: USN. Apogee: 500 km (310 mi).

1961 November 8 - 16:10 GMT - ETR Launch Area -. Polaris A2E-X2 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 November 9 - Cape Canaveral LC29A. Polaris A2X-14 (A2G-1) Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 December 1 - Cape Canaveral LC29A. Polaris A2X-23 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1961 December 5 - Cape Canaveral LC25A. Polaris A1X-51 Test mission Agency: USN. Apogee: 500 km (310 mi).

1962 January 23 - 17:05 GMT - Cape Canaveral LC29A. Polaris A2X-17 (A2G-2) FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1962 March 1 - Cape Canaveral LC29A. Polaris A2X-27 (A2G-5) Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 March 30 - Cape Canaveral LC25A. Polaris A2X-28 (A2M-3) FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1962 April 25 - 16:50 GMT - ETR Launch Area -. Polaris A2PE-1 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 May 4 - 01:41 GMT - Cape Canaveral LC25A. Polaris A2X-18 (A2MG-1) Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 May 6 - 23:17 GMT - Pacific Ocean -. Polaris A2 A1? FRIGATE BIRD Nuclear test Agency: USN. Apogee: 500 km (310 mi). The only US test of an operational ballistic missile with a live 600 kiloton warhead. A Polaris A2 missile was launched from the ballistic missile submarine Ethan Allen (SSBN-608) 2800 km east-northeast of Christmas Island. The re-entry vehicle reached the target zone 1890 km away and detonated at 3,300 m. The resulting mushroom cloud was observed by the submarines Carbonero (SS-337) and Medregal (SS-480), both stationed within 25 km of the predicted impact point.

1962 May 9 - 22:16 GMT - ETR Launch Area -. Polaris A2PE-3 FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1962 May 11 - ETR Launch Area -. Polaris A2PE-4 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 May 23 - ETR Launch Area -. Polaris A2PE-5 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 May 23 - ETR Launch Area -. Polaris A2PE-6 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 June 2 - 19:17 GMT - ETR Launch Area -. Polaris A2PE-7 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 June 2 - 22:36 GMT - ETR Launch Area -. Polaris A2PE-8 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 June 4 - 14:00 GMT - Cape Canaveral LC25A. Polaris A2X-30 (A2MG-2) FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1962 June 29 - 14:06 GMT - Cape Canaveral LC25A. Polaris A2X-29 (A2MG-4) Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 12 - 18:35 GMT - ETR Launch Area -. Polaris A2PE-11 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 12 - 20:05 GMT - ETR Launch Area -. Polaris A2PE-10 Operational Test - Flight over 80 minutes Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 21 - 20:50 GMT - ETR Launch Area -. Polaris A2P-12 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 21 - 22:30 GMT - ETR Launch Area -. Polaris A2P-13 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 21 - 23:50 GMT - ETR Launch Area -. Polaris A2P-2 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 26 - 17:50 GMT - Cape Canaveral LC25A. Polaris A2TF-1 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 July 27 - ETR Launch Area -. Polaris A1P-2 Operational test Agency: USN. Apogee: 500 km (310 mi).

1962 July 27 - ETR Launch Area -. Polaris A1P-1 Operational test Agency: USN. Apogee: 500 km (310 mi).

1962 July 27 - ETR Launch Area -. Polaris A1P-3 Operational test Agency: USN. Apogee: 500 km (310 mi).

1962 July 27 - ETR Launch Area -. Polaris A1P-4 Operational test Agency: USN. Apogee: 500 km (310 mi).

1962 August 7 - Cape Canaveral LC29A. Polaris A3X-1 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 August 10 - Cape Canaveral LC25A. Polaris A2TF-2 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 August 17 - Cape Canaveral LC25A. Polaris A2TF-3 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1962 August 27 - Cape Canaveral LC25A. Polaris A2TF-4 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 September 6 - 15:00 GMT - Cape Canaveral LC29A. Polaris A3X-2 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1962 September 14 - ETR Launch Area -. Polaris A1T-6 Test mission Agency: USN. Apogee: 500 km (310 mi).

1962 September 15 - ETR Launch Area -. Polaris A1T-5 Test mission Agency: USN. Apogee: 500 km (310 mi).

1962 Q4 - WTR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1962 October 5 - Cape Canaveral LC29A. Polaris A3X-3 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1962 October 14 - ETR Launch Area -. Polaris A1T-7 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1962 October 14 - ETR Launch Area -. Polaris A1T-8 Test mission Agency: USN. Apogee: 500 km (310 mi).

1962 November 5 - 15:30 GMT - Cape Canaveral LC29A. Polaris A3X-4 FAILURE: Failure. Test mission Agency: USN. Apogee: 10 km (6 mi).

1962 November 17 - 17:06 GMT - Cape Canaveral LC29A. Polaris A3X-5 FAILURE: Failure. Test mission Agency: USN. Apogee: 50 km (31 mi).

1962 December 6 - Cape Canaveral LC29A. Polaris A3X-6 FAILURE: Failure. Test mission Agency: USN. Apogee: 50 km (31 mi).

1962 December 19 - 07:33 GMT - Cape Canaveral LC25A. Polaris A2G-4 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 4 - ETR Launch Area -. Polaris A2P-109 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 4 - ETR Launch Area -. Polaris A2P-108 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 5 - ETR Launch Area -. Polaris A2P-110 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 5 - ETR Launch Area -. Polaris A2P-111 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 7 - 16:00 GMT - Cape Canaveral LC29A. Polaris A3X-8 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 11 - 15:30 GMT - Cape Canaveral LC25A. Polaris A3X-7 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 February 18 - 14:00 GMT - Cape Canaveral LC29A. Polaris A3X-9 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1963 February 21 - 17:58 GMT - ETR Launch Area -. Polaris A2P-117 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 March 7 - 17:49 GMT - ETR Launch Area -. Polaris A2P-116 FAILURE: Failure. Operational test Agency: USN. Apogee: 1.00 km (0.60 mi).

1963 March 7 - 18:49 GMT - ETR Launch Area -. Polaris A2P-120 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 March 14 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 March 19 - 16:00 GMT - Cape Canaveral LC29A. Polaris A3X-11 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 April 8 - 16:00 GMT - Cape Canaveral LC29A. Polaris A3X-18 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 April 10 - 20:33 GMT - ETR Launch Area -. Polaris A3X-14 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).

1963 April 17 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 April 18 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 April 26 - 18:31 GMT - ETR Launch Area -. Polaris A3X-20 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 May 10 - Cape Canaveral LC25A. Polaris A3X-12 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 May 17 - Cape Canaveral LC25A. Polaris A3X-15 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 4 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 6 - 16:16 GMT - Cape Canaveral LC25A. Polaris A3X-25 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 13 - 16:30 GMT - ETR Launch Area -. Polaris A2P-121 FAILURE: Failure. Operational test Agency: USN. Apogee: 100 km (60 mi).

1963 June 13 - 17:06 GMT - ETR Launch Area -. Polaris A2P-154 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 17 - ETR Launch Area -. Polaris A3X-24 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 21 - 16:44 GMT - ETR Launch Area -. Polaris A3X-22 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 June 24 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 July 2 - 16:00 GMT - ETR Launch Area -. Polaris A2P-118 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 July 2 - 16:30 GMT - ETR Launch Area -. Polaris A2P-167 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 July 3 - Cape Canaveral LC25A. Polaris A3X-26 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 July 19 - 01:00 GMT - Cape Canaveral LC25A. Polaris A3X-27 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 July 26 - Cape Canaveral LC29A. Polaris A3X-33 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 9 - ETR Launch Area -. Polaris A2P-210 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 9 - ETR Launch Area -. Polaris A2P-209 Operational Test - Flight over 65 minutes Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 13 - Cape Canaveral LC25A. Polaris A3X-36 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 17 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 20 - Cape Canaveral LC29A. Polaris A3X-37 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 23 - 17:01 GMT - ETR Launch Area -. Polaris A2P-208 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 23 - 17:41 GMT - ETR Launch Area -. Polaris A2P-211 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 August 30 - Cape Canaveral LC25A. Polaris A3X-38 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 September 4 - ETR Launch Area -. Operational test Agency: USN. Apogee: 500 km (310 mi).

1963 September 26 - ETR Launch Area -. Polaris A3X-39 Steam eject mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 October 1 - 19:39 GMT - ETR Launch Area -. Polaris A2P-222 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 October 4 - 04:18 GMT - ETR Launch Area -. Polaris A3X-41 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 October 16 - 16:30 GMT - ETR Launch Area -. Polaris A2P-221 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 October 24 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 October 26 - ETR Launch Area -. Polaris A3X-43 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 November 11 - 18:48 GMT - ETR Launch Area -. Polaris A3X-42 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 November 16 - 16:55 GMT - ETR Launch Area -. Polaris A2P-233 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1963 November 20 - ETR Launch Area -. Polaris A3X-44 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 December 10 - 03:11 GMT - Cape Canaveral LC25A. Polaris A3X-48 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1963 December 12 - 01:00 GMT - ETR Launch Area -. Polaris A3X-46 FAILURE: Failure. Test mission Agency: USN. Apogee: 1.00 km (0.60 mi).

1964 January 8 - 00:00 GMT - Cape Canaveral LC29A. Polaris A3X-50 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 January 13 - ETR Launch Area -. Polaris A2P-226 FAILURE: Failure. Operational test Agency: USN. Apogee: 2.00 km (1.20 mi).

1964 January 13 - 16:30 GMT - ETR Launch Area -. Polaris A2P-243 FAILURE: Failure. Operational test Agency: USN. Apogee: 100 km (60 mi).

1964 January 13 - 21:50 GMT - ETR Launch Area -. Polaris A2P-244 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 January 20 - 17:02 GMT - ETR Launch Area -. Polaris A3X-57 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 January 26 - 16:47 GMT - ETR Launch Area -. Polaris A2P-227 FAILURE: Failure. Operational test Agency: USN. Apogee: 5.00 km (3.10 mi).

1964 January 26 - 21:59 GMT - ETR Launch Area -. Polaris A2P-191 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 February 3 - 16:41 GMT - ETR Launch Area -. Polaris A2P-255 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 February 17 - 17:03 GMT - ETR Launch Area -. Polaris A2P-257 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 March 2 - 16:30 GMT - ETR Launch Area -. Polaris A2P-294 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 March 11 - 12:30 GMT - Cape Canaveral LC25A. Polaris A3X-58 FAILURE: Failure. Test mission Agency: USN. Apogee: 100 km (60 mi).

1964 March 16 - ETR Launch Area -. Polaris A2P-288 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 April 6 - 16:30 GMT - ETR Launch Area -. Polaris A2P-320 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 April 20 - 16:30 GMT - ETR Launch Area -. Polaris A2P-286 First surface launch test Agency: USN. Apogee: 1,000 km (600 mi).

1964 April 20 - 17:00 GMT - ETR Launch Area -. Polaris A2P-119 Submerged launch test Agency: USN. Apogee: 1,000 km (600 mi).

1964 May 25 - 18:29 GMT - ETR Launch Area -. Polaris A3P-6 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 May 25 - 19:15 GMT - ETR Launch Area -. Polaris A3P-1 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 June 8 - 16:34 GMT - ETR Launch Area -. Polaris A3P-2 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 June 8 - 17:09 GMT - ETR Launch Area -. Polaris A3P-4 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 June 23 - ETR Launch Area -. Polaris A2P-297 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 June 23 - ETR Launch Area -. Polaris A2P-319 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 June 23 - 18:16 GMT - ETR Launch Area -. Polaris A2P-296 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 2 - Cape Canaveral LC25A. Polaris A3X-10 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 8 - ETR Launch Area -. Polaris A2P-232 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 8 - ETR Launch Area -. Polaris A2P-295 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 8 - ETR Launch Area -. Polaris A2P-155 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 16 - 16:54 GMT - ETR Launch Area -. Polaris A3P-19 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 16 - 17:24 GMT - ETR Launch Area -. Polaris A3P-3 FAILURE: Failure. Operational test Agency: USN. Apogee: 500 km (310 mi).

1964 July 30 - ETR Launch Area -. Polaris A3P-32 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 July 30 - ETR Launch Area -. Polaris A3P-14 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 August 6 - 16:30 GMT - ETR Launch Area -. Polaris A3P-7 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 August 20 - ETR Launch Area -. Polaris A3P-33 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 September 5 - ETR Launch Area -. Polaris A3P-13 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 September 21 - ETR Launch Area -. Polaris A3P-38 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 September 28 - ETR Launch Area -. Polaris A3P-57 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 October 13 - ETR Launch Area -. Polaris A3P-17 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 October 19 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 October 28 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 October 31 - ETR Launch Area -. Polaris A3P-72 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 November 13 - ETR Launch Area -. Polaris A3P-87 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 December 2 - 16:30 GMT - ETR Launch Area -. Polaris A3P-100 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 December 16 - ETR Launch Area -. Polaris A3P-45 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1964 December 22 - ETR Launch Area -. Polaris A3P-46 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 January 11 - ETR Launch Area -. Polaris A3P-67 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 January 23 - ETR Launch Area -. Polaris A3P-157 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 February 6 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 February 8 - ETR Launch Area -. Polaris A3P-5 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 February 12 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 February 15 - 16:30 GMT - ETR Launch Area -. Polaris A3P-171 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 March 1 - ETR Launch Area -. Polaris A3P-172 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 March 5 - Cape Canaveral LC25A. Polaris A2E A2EA-193 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 March 15 - ETR Launch Area -. Polaris A3P-21 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 March 15 - ETR Launch Area -. Polaris A3P-158 Surface launch test Agency: USN. Apogee: 1,000 km (600 mi).

1965 March 29 - ETR Launch Area -. Polaris A3P-11 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 April 14 - 06:09 GMT - Cape Canaveral LC29A. Polaris A1 C2X-1 FAILURE: Failure. STAFF 1 test Agency: USN. Apogee: 1.00 km (0.60 mi).

1965 May 31 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 June 15 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1965 June 16 - 13:56 GMT - Cape Canaveral LC29A. Polaris A1 C2X-2 STAFF 2 test Agency: USN. Apogee: 650 km (400 mi).

1965 August 11 - Cape Canaveral LC29A. Polaris A1 C2X-3 STAFF 3 test Agency: USN. Apogee: 500 km (310 mi).

1965 November 5 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1965 November 12 - 22:28 GMT - Cape Canaveral LC29A. Polaris A1 C2X-4 STAFF 4 test Agency: USN. Apogee: 500 km (310 mi).

1965 December 6 - 19:26 GMT - ETR Launch Area -. Polaris A3P-42 OT/GT7 target Agency: USN. Apogee: 1,000 km (600 mi).

1965 December 20 - 16:33 GMT - ETR Launch Area -. Polaris A3P-188 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 January 17 - 16:42 GMT - ETR Launch Area -. Polaris A3P-393 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 January 31 - ETR Launch Area -. Polaris A3P-388 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 February 17 - ETR Launch Area -. Polaris A3P-14 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 February 24 - ETR Launch Area -. Polaris A3P-380 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 February 25 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 1 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 3 - ETR Launch Area -. Polaris A3P-135 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 10 - ETR Launch Area -. Polaris A3P-383 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 14 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 17 - ETR Launch Area -. Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 March 31 - 16:00 GMT - ETR Launch Area -. Polaris A3P-396 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 April 7 - 16:00 GMT - ETR Launch Area -. Polaris A3P-445 FAILURE: Failure. Operational Test / 1 of 2 launches failed Agency: USN. Apogee: 20 km (12 mi).

1966 April 7 - 16:30 GMT - ETR Launch Area -. Polaris A3P-400 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 April 14 - ETR Launch Area -. Polaris A3P-375 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 April 21 - ETR Launch Area -. Polaris A3P-437 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 April 21 - 16:00 GMT - ETR Launch Area -. Polaris A3P-440 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 April 21 - 16:30 GMT - ETR Launch Area -. Polaris A3P-431 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 June 10 - 16:09 GMT - ETR Launch Area -. Polaris A3P-421 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 June 23 - 16:00 GMT - ETR Launch Area -. Polaris A3P-484 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 July 11 - ETR Launch Area -. Polaris A3P-399 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 July 25 - ETR Launch Area -. Polaris A3P-419 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 September 1 - ETR Launch Area -. Polaris A3P-386 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 September 20 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1966 September 28 - ETR Launch Area -. Polaris A2P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1966 October 10 - 16:10 GMT - ETR Launch Area -. Polaris A3P-447 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 October 31 - ETR Launch Area -. Polaris A3P-397 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 October 31 - ETR Launch Area -. Polaris A3P-450 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 November 14 - ETR Launch Area -. Polaris A3P-512 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 November 14 - ETR Launch Area -. Polaris A3P-394 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 November 17 - Cape Canaveral LC29A. Polaris A3TX-1 Antelope test Agency: USN. Apogee: 1,000 km (600 mi).

1966 November 28 - ETR Launch Area -. Polaris A3P-389 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1966 November 28 - ETR Launch Area -. Polaris A3P-378 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 January 6 - Cape Canaveral LC29A. Polaris A3TX-2 Antelope test Agency: USN. Apogee: 1,000 km (600 mi).

1967 March 2 - Cape Canaveral LC29A. Polaris A3TX-4 Antelope test Agency: USN. Apogee: 1,000 km (600 mi).

1967 March 6 - 02:45 GMT - ETR Launch Area -. Polaris A3P-549 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 April 3 - ETR Launch Area -. Polaris A3P-401 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 April 27 - ETR Launch Area -. Polaris A3P-510 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 June 23 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1967 July 8 - ETR Launch Area -. Polaris A2P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1967 July 31 - ETR Launch Area -. Polaris A3P-529 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 September 8 - 16:00 GMT - ETR Launch Area -. Polaris A3P-377 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1967 September 12 - Cape Canaveral LC29A. Polaris A3TY-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 500 km (310 mi).

1967 November 1 - Cape Canaveral LC29A. Polaris A3TY-3 Test mission Agency: USN. Apogee: 1,000 km (600 mi).

1967 November 1 - ETR Launch Area -. Polaris A3P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1967 November 6 - ETR Launch Area -. Polaris A2P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1967 November 25 - ETR Launch Area -. Polaris A2P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1968 January 8 - ETR Launch Area -. Polaris A2P-273 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 January 15 - 17:43 GMT - ETR Launch Area -. Polaris A2P-138 FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1968 January 24 - ETR Launch Area -. Polaris A2P-94 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 January 31 - ETR Launch Area -. Polaris A2P-91 Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 February 15 - 16:15 GMT - ETR Launch Area -. Polaris A3P-670 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1968 March 4 - ETR Launch Area -. Polaris A3P-666 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1968 April 10 - ETR Launch Area -. Polaris A3P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1968 April 26 - ETR Launch Area -. Polaris A3P Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1968 June 11 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 June 18 - 18:07 GMT - ETR Launch Area -. Polaris A2E A2E FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1968 July 11 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 July 19 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 July 30 - 16:07 GMT - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 August 14 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 August 29 - ETR Launch Area -. Polaris A3TE Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 August 29 - ETR Launch Area -. Polaris A3TE Improved Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 September 10 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 September 26 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1968 October 21 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 February 20 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 March 27 - ETR Launch Area -. Polaris A3E-667 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1969 March 28 - ETR Launch Area -. Polaris A2E A2E Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1969 April 4 - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 April 14 - ETR Launch Area -. Polaris A3E-645 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1969 July 24 - 16:10 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 August 11 - 15:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 August 19 - 15:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 September 18 - 16:00 GMT - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 September 30 - 14:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 October 15 - 15:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 October 15 - 19:10 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 October 20 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1969 October 29 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1969 October 30 - 16:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 November 15 - 17:00 GMT - ETR Launch Area -. Polaris A2E A2E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 November 24 - 16:37 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1969 December 2 - 16:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1970 February 6 - 16:30 GMT - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 10 - 16:30 GMT - ETR Launch Area -. Polaris A3E FAILURE: Failure. Operational test Agency: USN. Apogee: 10 km (6 mi).

1970 April 11 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 21 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1970 May 11 - ETR Launch Area -. Operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1970 May 22 - ETR Launch Area -. Polaris A3E Operational test Agency: USN. Apogee: 1,000 km (600 mi).

1970 June 1 - ETR Launch Area -. Polaris A3E-671 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1970 June 18 - ETR Launch Area -. Polaris A3E-468 Operational test Agency: RN. Apogee: 1,000 km (600 mi).

1970 August 31 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1970 September 9 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1971 March 19 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000 km (600 mi).

1971 March 19 - ETR Launch Area -. Follow-on operational missile test Agency: USN. Apogee: 1,000