FBM program had at this date as its objective the deployment of additional submarines carrying the POLARIS A-3 with the Pacific and Atlantic Fleets.

26 JULY 1965

USS THEODORE ROOSEVELT (SSBN 600) entered General Dynamics/Electric Boat Division Shipyard, Groton, Conn., to begin her initial overhaul

28 JULY 1965

An interim FBM anchorage site was established at the U.S. Naval Station, Charleston, S.C., with the USS SIMON LAKE (AS 33) as the FBM tender. SIMON LAKE officially became the support tender for Submarine Squadron Eighteen.

14 OCTOBER 1965

USS ABRAHAM LINCOLN (SSBN 602) returned to the United States, completing her initial deployment. She was the last of the first five SSBNs carrying the POLARIS A-1 to return to the U.S. for overhaul. This marked the official retirement of the POLARIS A-1 missile from active fleet duty.

22 OCTOBER 1965

The Cooper River FBM anchorage site near Charleston, S.C., became operational when the USS SIMON LAKE (AS 33) moved from the interim site to this location.

25 OCTOBER 1965

USS ABRAHAM LINCOLN (SSBN 602) entered General Dynamics/Electric Boat Division Shipyard, Groton, Conn., to begin her initial overhaul.

2 FEBRUARY 1966

USS GEORGE WASHINGTON (SSBN 598), the first submarine ever to carry POLARIS missiles on operational patrol, completed her initial overhaul. She has been refitted to carry the 2500 nautical mile range POLARIS A-3 missile.

1 APRIL 1966

FBM program had at this date as its objectives: completion of construction and launching of the last two SSBNs; completion of the overhauls to reflt the first five SSBNs to carry POLARIS A-3 missiles; continued deployment of SSBNs on operational patrol in the Atlantic and Pacific Fleets; and proceeding with engineering development on the newest missile, POSEIDON (C-3).

27 APRIL 1966

USS SIMON BOLIVAR (SSBN 641) departed Charleston, S.C., to go on operational patrol with 16 POLARIS A-3 missiles.

7 MAY 1966

USS BENJAMIN FRANKLIN (SSBN 640) departed Pearl Harbor, Hawaii, for operational patrol with 16 POLARIS A-3 missiles.

9 MAY 1966

USS ETHAN ALLEN (SSBN 608), first SSBN designed from keel up as a FBM submarine, returned to the United States, completing her initial deployment. She was the first submarine to carry the longer range POLARIS A-2 missile.

20 MAY 1966

USS ETHAN ALLEN (SSBN 608) entered Newport News Shipbuilding and Drydock Company Shipyard, Newport News, Va., to begin her initial overhaul.

23 JUNE1966

USS LEWIS AND CLARK (5513N 644) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

23 JUNE 1966

USS CANOPUS (AS 34), last of five planned FBM tenders, deployed to the Cooper River anchorage to relieve USS HUNLEY (AS 33).

3O JUNE 1966

USS GEORGE WASHINGTON (SSBN 598) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

26 JULY 1966

USS GEORGE BANCROFT (SSBN 643) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

6 AUGUST 1966

USS KAMEHAMEHA (SSBN 642) departed Apra Harbor, Guam, for operational patrol with 16 POLARIS A-3 missiles.

14 OCTOBER 1966

USS JAMES K. POLK (SSBN 645) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

25 OCTOBER 1966

The Secretary of Defense initiated a comprehensive study effort termed STRAT-X to examine future ballistic missile basing concepts and missile performance characteristics required to counter potential Soviet strategic offensive forces and ABM proliferation.

17 NOVEMBER 1966

The first in a series of improved POLARIS A-3 missiles was successfully fired from a land pad at Cape Kennedy, Fla.

5 DECEMBER 1966

USS ROBERT E. LEE (SSBN 601) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

12 DECEMBER 1966

USS GEORGE WASHINGTON CARVER (SSBN 656) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

12 DECEMBER 1966

First inert POSEIDON (C-3) test vehicle launched from a land-based launcher (PEASHOOTER) at San Francisco Bay Naval Shipyard (Hunters Point Division).

17 DECEMBER 1966

Secretary of Defense approved production of POSEIDON (C-3).

27 DECEMBER 1966

USS PATRICK HENRY (SSBN 599) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

6 JANUARY 1967

An improved POLARIS A-3 missile was successfully launched from a land pad at Cape Kennedy, Fla.

23 FEBRUARY 1967

USS HENRY L. STIMSON (SSBN 655) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

2 MARCH 1967

An improved POLARIS A-3 missile was successfully launched from a land pad at Cape Kennedy, Fla.

7 APRIL 1967

First STV-4K POSEIDON special test vehicle was launched from PEASHOOTER and caught by a special crane (Skycatch).

3 JUNE 1967

USS ABRAHAM LINCOLN (SSBN 602), last of the five SSBNs that carried POLARIS A-1, completed her conversion to carry A-3.

6 JUNE 1967

USS FRANCIS SCOTT KEY (SSBN 657) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

11 JUNE 1967

USS THEODORE ROOSEVELT (SSBN 600) departed Charleston, S.C., for operational patrol with 16 POLARIS A-3 missiles.

5 JULY 1967

First full-scale firing of POSEIDON (C-3) first stage motor was statically fired at the Hercules, Inc., facilities at Magna, Utah. Test was successful.

31 JULY1967

USS MARIANO G. VALLEJO (5513N 658) departed Pearl Harbor, Hawaii, for operational patrol with 16 POLARIS A-3 missiles.

AUGUST 1967

STRAT-X study report promulgated.

12 SEPTEMBER 1967

An improved POLARIS A-3 missile was successfully launched from a land pad at Cape Kennedy, Fla. Powered flight only partially successful.

3 OCTOBER 1967

USS WILL ROGERS (SSBN 659), last of the 41 authorized SSBNs, departed Charleston, S.C. for operational patrol with 16 POLARlS A-3 missiles.

26 OCTOBER 1967

USS ABRAHAM LINCOLN (SSBN 602) deployed following completion of overhaul and retrofit from POLARIS A-1 to A-3 Capability.

1 FEBRUARY 1968

Advanced development objective for an Undersea Long Range Missile System (ULMS) was established by the Chief of Naval Operations.

3 FEBRUARY 1968

HMS RESOLUTION (SSBN 01), the Royal Navy's first nuclear-powered submarine to be outfitted with the Polaris weapon system under the terms of the Polaris Sales Agreement, successfully launched a Polaris A-3 missile down the Atlantic Missile Test Range while cruising submerged off Cape Kennedy. (On 4 March, the Starboard Crew successfully launched a Polaris A-3.) Purpose of the U.S. visit was for final "shakedown" tests of her two crews and the weapon system before deploying for her first operational patrol.

12 MARCH 1968

The Navy awarded the Lockheed Missiles and Space Company a $456.1 million cost-plus incentive fee contract for development and production of the POSEIDON missile system. The contract represents one of the first awards made by the Navy Department providing for total system development and production.

29 MARCH 1968

USS ETHAN ALLEN (SSBN 608) deployed for her second on-line cycle after overhaul.

11 APRIL 1968

USS SAM HOUSTON (SSBN 609) deployed for her second on-line cycle after overhaul.

1 JULY 1968

The last production-line A-3 missile was turned over to the Navy by Lockheed Missiles & Space Co., prime contractor.

29 JULY 1968

Special Projects Office was officially redesigned the Strategic Systems Project Office to reflect additional responsibilities assigned by the Chief of Naval operations for strategic offensive and defensive systems.

16 AUGUST 1968

The first test flight model of the POSEIDON missile (C3X-1) was successfully launched from a land pad at Cape Kennedy. Principal objective of the test was basic missile development. The POSEIDON is scheduled for deployment on 31of the 41 FBM submarines.

29 AUGUST 1968

First submerged firing of an improved POLARIS A-3 missile from the USS DANIEL WEBSTER (SSBN 626). (The Gold Crew successfully launched two missiles.)

6 SEPTEMBER 1968

USS JOHN MARSHALL (SSBN 611) deployed for her second on-line cycle after overhaul

22 SEPTEMBER 1968

USS THOMAS A. EDISON (SSBN 610) deployed for her second on-line cycle after overhaul.

29 OCTOBER 1968

USS THOMAS JEFFERSON (SSBN 618) deployed for her second on-line cycle after overhaul.

12 NOVEMBER 1968

USS ALEXANDER HAMILTON (SSBN 617) deployed for her second on-line cycle after overhaul.

20 NOVEMBER 1968

USS FRANCIS SCOTT KEY (SSBN 657) returned to Charleston, South Carolina, and thus marked the successful completion of the 600th deterrent patrol by Units of the POLARIS submarine force, and the equivalent completion of 100 patrol years on the POLARIS submarine patrolling completely submerged for 100 years. Since the initial patrol in November 1960, 36,500 days of patrol vigilance have been successfully completed.

26 NOVEMBER 1968

POSEIDON developmental missile launched from Cape Kennedy. This was the second in a series of concept test firings.

21 JANUARY 1969

Third POSEIDON developmental missile launched from Cape Kennedy. A malfunction during first stage powered flight of the test missile caused it to veer off course and it was destroyed by the Range Safety Officer.

Fourth POSEIDON test missile launched from Cape Kennedy.

20 MARCH 1969

Fifth POSEIDON test missile launched from Cape Kennedy.

27 MARCH 1969

HMS REPULSE (SSBN 03), Royal Navy nuclear Powered submarine, successfully fired a Polaris A-3 missile down the Atlantic Missile Test Range while submerged off Cape Kennedy. (The Port Crew successfully fired a Polaris A-3 missile on 14 April.)

5 APRIL 1969

The 100th POLARIS patrol In the Pacific was completed when USS STONEWALL JACKSON (SSBN 634) returned to Apra Harbor, Guam.

9 APRIL 1969

Sixth POSEIDON test missile launched from Cape Kennedy.

1 MAY 1969

USS OBSERVATION ISLAND (AG-154) completed overhaul and retrofit to POSEIDON capability at the Norfolk Naval Shipyard; Port Canaveral, Florida, assigned as homeport.

12 MAY 1969

USS DANIEL BOONE (SSBN 629) entered the Newport News Shipbuilding & Drydock Co. for conversion to a POSEIDON missile capability.

18 MAY 1969

USS LAFAYETTE (SSBN 616) deployed for her second on-line cycle after overhaul.

24 MAY 1969

Seventh POSEIDON test missile launched from Cape Kennedy.

14 JUNE 1969

Eighth POSEIDON missile launched from Cape Kennedy.

9 JULY 1969

Ninth POSEIDON missile launched from Cape Kennedy.

11 JULY 1969

USS VON STEUBEN (SSBN 632) commenced overhaul and conversion to a POSEIDON capability at Electric Boat.

4 AUGUST 1969

USS JOHN C. CALHOUN (SSBN 630) commenced overhaul and conversion to POSEIDON at Mare Island Naval Shipyard, Vallejo, California.

21 AUGUST 1969

Tenth POSEIDON missile launched from Cape Kennedy.

17 SEPTEMBER 1969

Eleventh POSEIDON missile launched from Cape Kennedy.

3 OCTOBER 1969

USS ULYSSES S. GRANT (SSBN 631) commenced overhaul and conversion to POSEIDON at Puget Sound Naval Shipyard, Bremerton Washington

4 OCTOBER 1969

The Undersea Long Range Missile System (ULMS) program was established by the Chief of Naval Operations.

17 OCTOBER 1969

Strategic Systems Project Office was relocated to new quarters in Building No.3, Crystal Mall, 1931 Jefferson Davis Highway, Arlington, Va.

3 NOVEMBER 1969

Twelfth POSEIDON missile was launched from Cape Kennedy.

10 NOVEMBER 1969

Thirteenth flight test in the POSEIDON development program conducted at Cape Kennedy, Fla.

16 DECEMBER 1969

Fourteenth flight teat of POSEIDON was conducted from the surface missile teat-firing ship USS OBSERVATION ISLAND (AG-153). This was the first operational missile tube launch and the first complete teat of the POSEIDON weapons system, including the launcher, fire control, and missile subsystems.

24 DECEMBER 1969

USS NATHAN HALE (SSBN 628) deployed for her second on-patrol cycle after 21 months in CONUS for overhaul and various redeployment exercises. During overhaul, SSBN 628 was provided with a POLARIS A-3 vice A-2 missile capability. SSBN 628 was the first of six SSBN 616 Class ships transferred to the Pacific Fleet following overhaul.

5 JANUARY 1970

USS WOODROW WILSON (SSBN 624) deployed for her second on-line patrol cycle. During overhaul she was provided with the A-3 capability.

15 JANUARY 1970

USS ANDREW JACKSON (SSBN 619) deployed, the last POLARIS A-2 SSBN to redeploy following regular overhaul.

19 JANUARY 1970

USS SAM RAYBURN (SSBN 685) completed overhaul and POSEIDON conversion at Portsmouth Naval Shipyard, the last of the four authorized FY 1970 conversions.

23 JANUARY 1970

Fifteenth POSEIDON missile launched from Cape Kennedy.

3 FEBRUARY 1970

USS CANOPUS (AS-34) completed conversion to POSEIDON capability at the Puget Sound Naval Shipyard. CANOPUS was the first FBM Tender to undergo modification to support POSEIDON submarines.

4 FEBRUARY 1970

Sixteenth flight test in the POSEIDON development program and the second test from the USS OBSERVATION ISLAND).

25 FEBRUARY 1970

USS JOHN ADAMS (SSBN 620) deployed for her second on-line patrol cycle. During overhaul she was provided with the A-3 missile capability.

3 MARCH 1970

USS JAMES MONROE (SSBN 622) deployed for her Second on-line patrol cycle. During overhaul she was provided with the A-3 missile capability. Eight SSBNs remain with the A-2 capability.

24 MARCH 1970

Seventeenth night test in the POSEIDON development program, and the third from the USS OBSERVATION ISLAND.

26 MARCH 1970

ULMS Program Steering and Working Groups established. The Steering Group was established to provide program guidance, a forum for program problems, and periodic evaluation of program progress. The Working Group was established to derive a list of key events, solve problems monitor progress, and ensure continuous and effective communication.

30 APRIL 1970

USS DANIEL WEBSTER (SSBN 626) deployed for her second on-line cycle after overhaul.

14 MAY 1970

Eighteenth POSEIDON test missile launched from Cape Kennedy.

28 MAY 1970

Resupply ship USNS MARSHFIELD (TAK-282) completed conversion to FBM capability. MARSHFIELD, primarily a POSEIDON resupply ship also had a capability for POLARIS A2/A3.

17 JUNE 1970

Nineteenth POSEIDON test missile launched from Cape Kennedy.

28 JUNE 1970

USS JAMES MADISON (SSBN 627), the lead ship in the POSEIDON conversion program completed conversion to C-3 capability at Electric Boat Division, Groton, Cohn.

29 JUNE 1970

Exchange Program to replace all POLARIS A3P missiles in the Atlantic Fleet with POLARIS A3T missiles was completed.

3 AUGUST 1970

First submerged launch of a POSEIDON Production Evaluation Missile (PEM) successfully conducted from USS JAMES MADISON (SSBN 627). The firing was observed by a Russian ship, LAPTEV, whose crew was unsuccessful in attempts to recover closure plate segments from the water after launch of the missile.

17 AUGUST 1970

Second submerged launch of a POSEIDON PEM was successfully conducted from USS JAMES MADISON (SSBN 627).

27 AUGUST 1970

Navigational Satellite C 30190 was launched into Polar Orbit in support of the Navy Navigation Satellite System, thereby increasing the size of the four-satellite constellation to provide improved navigation satellite coverage.

30 AUGUST 1970

USS HENRY CLAY (SSBN 625) deployed for her second on-line patrol cycle following completion of overhaul, during which time she was provided with PLOARIS A-3 capability.

8 SEPTEMBER 1970

Third submerged launch of POSEIDON PEM was successfully conducted from USS DANIEL BOONE (SSBN 629).

21 SEPTEMBER 1970

Fourth submerged launch of a POSEIDON PEM was successfully conducted from USS DANIEL WEBSTER (SSBN 629).

21 SEPTEMBER 1970

POSEIDON development flight test program was concluded.

6 OCTOBER 1970

Fifth submerged launch of a POSEIDON PEM was successfully conducted from USS JAMES MADISON (SSBN 627).

23 OCTOBER 1970

POSEIDON DASO program commenced with the successful launch of a POSEIDON missile from the USS JAMES MADISON (SSBN 627).

19 NOVEMBER 1970

USS VON STEUBEN (SSBN 632) completed conversion to POSEIDON capability at Electric Boat, Groton, Conn.

27 NOVEMBER 1970

The Blue Crew of USS DANIEL BOONE (SSBN 629) successfully fired a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

16 DECEMBER 1970

USS ULYSSES S. GRANT (SSBN 631) completed conversion to POSEIDON capability at Puget Sound Naval Shipyard.

4 FEBRUARY 1971

The Blue Crew of USS VON STEUBEN (SSBN 632) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

18 FEBRUARY 1971

USS TECUMSEH (SSBN 628) completed conversion to POSEIDON capability at Newport News, Shipbuilding and Drydock Company.

22 FEBRUARY 1971

USS JOHN C. CALHOUN (SSBN 630) completed yard availability for conversion to POSEIDON capability at Mare Island Naval Shipyard.

9 MARCH 1971

FBM tender USS SIMON LAKE (AS-33) Completed yard availability at Puget Sound Navy Shipyard. SIMON LAKE was the second FBM tender to be provided POSEIDON capability.

15 MARCH 1971

The Gold Crew of USS VON STEUBEN (SSBN 632) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

29 MARCH 1971

USS JAMES MADISON (SSBN 627) deployed from Charleston, S.C., for operational patrol with 16 tactical POSEIDON C-3 missiles. MADISON'S deployment introduced the POSEIDO into the nation's arsenal of operational deterrent weapons and brought to successful fruition the development program announced in January 1965 for successor weapon system to POLARIS. POSEIDON incorporated substantial improvements in accuracy and resistance to countermeasures over previous generations of missiles, but its principal advantage was in its flexibility, which provided a capacity for delivery of multiple warheads, widely spaced, on separate targets over a variety of target footprints.

31 MARCH 1971

The ULMS Project Manager (PM-2) was established under the Chief of Naval Material.

19 APRIL 1971

The Blue Crew of USS JOHN C. CALHOUN (SSBN 630) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

30 APRIL 1971

The Blue Crew of USS TECUMSEH (SSBN 628) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

30 APRIL 1971

USS CASIMIR PULASKI (SSBN 633), the seventh ship in the POSEIDON conversion program, completed availability at Electric Boat, Groton, Conn. Conversion duration was 15.75 months.

10 MAY 1971

The initial POSEIDON patrol was successfully completed with the arrival of USS JAMES MADISON (SSBN 627) alongside the tender CANOPUS (AS-34) at Holy Loch, Scotland, for a refit period.

11 MAY 1971

The Blue Crew of USS ULYSSES S. GRANT (SSBN 631) successfully launched two POSEIDON C-3 missiles in Demonstration and Shakedown Operations.

15 MAY 1971

FBM Resupply ship, USNS VICTORIA (TAK 281) completed yard availability at Norfolk Naval Shipyard. TAK 281 was the second resupply ship modified to support POSEIDON C-3 SSBNs in addition to its A2/A3 capability.

21 MAY1971

USS VON STEUBEN (SSBN 682), the third POSEIDON-carrying SSBN, deployed from Charleston, S.C., for operational period.

7 JUNE 1971

The Gold Crew of USS JOHN C. CALHOUN (SSBN 630) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

8 JUNE 1971

The first Integrated Data Acquisition System (IDAS) M-35 production set was installed on board USS CASIMIR PULASKI (SSBN 633). IDAS installation was planned for all SSBNs.

2 JULY 1971

The Blue Crew of USS CASIMIR PULASKI (SSBN 633) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

11 JULY 1971

USS ULYSSES S. GRANT (SSBN 631), the fourth POSEIDON-carrying SSBN, deployed from Charleston, S.C., for operational patrol.

17 JULY 1971

The Gold Crew of USS TECUMSEH (SSBN 628) successfully launched a POSEIDON C-3 missile completing the ship's Demonstration avid Shakedown Operations.

1 AUGUST 1971

The second FBM tender to be provided with POSEIDON C-3 capability, USS SIMON LAKE (AS-33) departed to the Cooper River, S.C., tender refit site.

16 AUGUST 1971

The Gold Crew of USS CASIMIR PULASKI (SSBN 633) successfully launched a POSEIDON C-3 missile, completing the ship's Demonstration and Shakedown Operations.

27 AUGUST 1971

Conversion of USS SAM RAYBURN (SSBN 635) to POSEIDON capability was completed at Portsmouth Naval Shipyard, the eighth SSBN to be provided with C-3 capability.

16 SEPTEMBER 1971

USS JOHN C. CALHOUN (SSBN 630), the fifth POSEIDON-carrying SSBN, deployed from Charleston, S.C., for operational patrol.

21 SEPTEMBER 1971

Conversion of USS NATHANAEL GREENE (SSBN 636) to POSEIDON capability was completed at Newport News Shipbuilding and Drydock Company, the ninth SSBN to be provided with C-3 capability.

22 SEPTEMBER 1971

USS TECUMSEH (SSBN 628), the sixth POSEIDON-carrying SSBN, deployed from Charleston, S.C., for operational patrol.

14 OCTOBER 1971

The Blue Crew of USS SAM RAYBURN (SSBN 635) successfully launched a POSEIDON C-3 missile in support of the ship’s Demonstration and Shakedown Operations.

21 OCTOBER 1971

Range Instrumentation Ship, TAGM-22, completed POSEIDON modification at Northwest Marine Iron Works. Her primary mission was to support C-3 operational tests/follow-on operational tests.

28 OCTOBER 1971

USS CASIMIR PULASKI (SSBN 633), the seventh POSEIDON-carrying SSBN, deployed from Charleston, S.C., for operational patrol.

29 OCTOBER 1971

Conversion of USS STONEWALL JACKSON (SSBN 634) to POSEIDON capability was completed at Electric Boat, Groton, Conn. JACKSON was the 10^th SSBN to be provided with C-3 capability.

4 NOVEMBER 1971

The Blue Crew of USS NATHANAEL GREENE (SSBN 636) successfully launched a POSEIDON C-3 missile in support of the ship’s Demonstration and Shakedown Operations. This was the first surface launch of a POSEIDON missile from an SSBN.

19 NOVEMBER 1971

Since the Navy Navigational Satellite System was declared operational in 1968, 10,000 successful injections had been achieved.

24 NOVEMBER 1971

The Gold Crew of USS SAM RAYBURN (SSBN 635) successfully launched a POSEIDON C-3 missile, completing the ship’s Demonstration and Shakedown Operations.

DECEMBER 1971

Undersea Long-Range Missile development contract awarded.

6 DECEMBER 1971

The Blue Crew of USS STONEWALL JACKSON (SSBN 634) successfully launched a POSEIDON C-3 missile in support of the ship’s Demonstration and Shakedown Operations.

17 DECEMBER 1971

The Gold Crew of USS NATHANAEL GREENE (SSBN 636) successfully launched a POSEIDON C-3 missile completing the ship’s Demonstration and Shakedown Operations.

21 JANUARY 1972

The Gold Crew of USS STONEWALL JACKSON (SSBN 636) successfully launched a POSEIDON C-3 missile, completing the ship’s Demonstration and Shakedown Operations.

4 FEBRUARY 1972

The Gold Crew of USS GEORGE WASHINGTON (SSBN 598) successfully launched a POLARIS A3T missile, completion the ship’s Demonstration and Shakedown Operations, while cruising submerged off Cape Kennedy. This was the first flight test of a first stage motor incorporation a SPALT designed to eliminate anomalies attributed to forward head separation. This was the first DASO firing following second overhaul.

7 MARCH 1972

USS SAM RAYBURN (SSBN 635) deployed from Charleston, S.C., for operational patrol, carrying 16 POSEIDON missiles.

26 MARCH 1972

Exchange program to replace all POLARIS A3P missiles in the Pacific Fleet with A3T missile was completed.

24 APRIL 1972

The Blue crew of USS PATRICK HENRY (SSBN 599) successfully launched a POLARIS A3T missile in support of the ship's Demonstration and Shake Down Operations.

26 APRIL 1972

USS STONEWALL JACKSON (SSBN 634) deployed from Charleston, S.C., for operational patrol following POSEIDON conversion.

MAY 1972

Accuracy ULM technical program planning phase completed.

12 MAY 1972

Conversion of USS SIMON BOLIVAR (SSBN 641) to POSEIDON capability as completed at Newport News Shipbuilding and Drydock Company. BOLIVAR was the 11th SSBN to be provided with C-3 capability.

15 MAY 1972

The 12th SSBN to undergo POSEIDON conversion, USS BENJAMIN FRANKLIN (SSBN 640) completed a scheduled yard availability at Electric Boat, Groton, Conn.

15 MAY 1972

FBM resupply ship, USNS NORWALK (TAK 279), completed a scheduled yard availability at Norfolk Naval Shipyard. NORWALK was the third resupply ship to be modified to provide support capability for POSEIDON C-3 missiles in addition to her existent POLARIS A2/A3 support capability.

16 MAY 1972

With the return of USS JOHN C. CALHOUN (SSBN 630) from POSEIDON patrol at Holy Loch, Scotland, a total of 1,000 POLARIS/POSEIDON deterrent patrols had been successfully completed (975 POLARIS/25 POSEIDON).

16 MAY 1972

The Secretary of Defense approved the proposal by the Secretary of the Navy to rename the ULMS program as the TRIDENT program.

16 JUNE 1972

The Blue Crew of USS BENJAMIN FRANKLlN (SSBN 640) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

16 JUNE 1972

Modifications to the New London FBM training facility to accommodate POSEIDON MK 88 MOD 1 fire control training were completed. The facility was able to provide FBM POSEIDON off-crew refresher training.

25 JUNE 1972

USS GEORGE WASHINGTON (SSBN 598) deployed from Charleston, S.C., carrying 16 POLARIS A3T missiles following her second overhaul.

28 JUNE 1972

Modifications of the FBM weapon system laboratories at the Naval Guided Missiles School. Dam Neck, Virginia were completed. The facility was ready to accommodate POSEIDON MK 88 MOD 1 fire control training.

5 JULY 1972

The Blue Crew of USS SIMON BOLIVAR (SSBN 641) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

15 JULY 1972

USS PATRICK HENRY (SSBN 599) deployed for operational patrol from Charleston, S. C. carrying 16 POLARIS A3T missiles. Following overhaul at Puget Sound Naval Shipyard HENRY successfully launched a POLARlS A3T missile in Demonstration and Shakedown operations.

21 JULY 1972

The 13th ship to undergo POSEIDON conversion, USS LEWIS AND CLARK (SSBN 644) completed a scheduled yard availability at Puget Sound Naval Shipyard.

25 JULY 1972

The first satellite in the TRANSIT Improvement Program was completed.

28 JULY 1972

Conversion of USS GEORGE BANCROFT (SSBN 643) to POSEIDON capability was completed at Portsmouth Naval Shipyard.

18 AUGUST 1972

The POSEIDON OT program commenced with the successful launch of four POSEIDON C-3 missiles by the Blue Crew, of USS ULYSSES S. GRANT (SSBN 631). The tests were supported by the range instrumentation ship, USNS RANGE SENTINEL (TAGM-22).

2 SEPTEMBER 1972

The first spacecraft of an improved Navy Navigation Satellite (TIP) series was successfully launched from Vandenberg Air Force Base.

25 SEPTEMBER 1972

The Blue Crew of USS GEORGE BANCROFT (SSBN 643) successfully launched a POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

27 SEPTEMBER 1972

Arrival of USS JOHN MARSHALL (SSBN 611) at Rota, Spain, for refit, marked the successful completion of the 1,000th POLARIS deterrent patrol since the POLARIS weapon system was initially deployed on USS GEORGE WASHINGTON (SSBN 598) on 15 November 1960.

28 SEPTEMBER 1972

The GoId Crew of USS VON STEUBEN (SSBN 632) successfully launched four C-3 missiles in the second POSEIDON operational test.

29 SEPTEMBER 1972

The FBM weapon system test ship, USS OBSERVATION ISLAND (AG 154), was decommissioned. The ship had supported various FBM missions since 1958.

5 OCTOBER 1972

The Blue Crew of USS ROBERT F. LEE (SSBN 601) successfully launched a POLARIS A3T missile in support of the ship's Demonstration And Shake Down operations.

27 OCTOBER 1973

POSEIDON Conversion Of USS KAMEHAMEHA (SSBN 642) was completed at Electric Boat, Groton, conn. KAMEHAMEHA was the 15th ship to be provided with C-3 capability.

2 NOVEMBER 1973

The Blue Crew of USS JOHN C. CALHOUN (SSBN 630) launched four C-3 missiles in the third POSEIDON operational test.

10 NOVEMBER 1972

USS SIMON BOLIVAR (SSBN 641) deployed for operational Patrol carrying 16 POSEIDON C-3 tactical missiles.

17 NOVEMBER 1973

POSEIDON conversion of USS JAMES K. POLK (SSBN 645) was completed at Newport News Shipbuilding and Drydock Company. POLK was the 16th SSBN to be provided with C-3 capability.

1 DECEMBER 1973

USS BENJAMIN FRANKLIN (SSBN 640) deployed for operational patrol carrying 16 tactical POSEIDON C-3 missiles.

14 DECEMBER 1973

The president approved TRIDENT for inclusion in BRICKBAT priority of the Master Urgency List. This is the highest industrial priority for defense projects.

15 DECEMBER 1973

The Blue Crew of USS KAMEHAMEHA (SSBN 642) successfully launched one C-3 missile in support of the ship's Demonstration And Shakedown operations.

17 DECEMBER 1973

The Blue Crew of USS DANIEL BOONE (SSBN 629) successfully launched four C-3 missiles in the fourth POSEIDON operational test.

18 DECEMBER 1973

The Gold Crew of USS LEWIS AND CLARK (SSBN 044) successfully launched one POSEIDON C-3 missile in support of the ship's Demonstration and Shakedown Operations.

18 JANUARY 1973

USS ROBERT E. LEE (SSBN 601) deployed for operational patrol carrying 16 POLARIS missiles

15 JANUARY 1973

POSEIDON conversion of USS ALEXANDER HAMILTON (SSBN 617), the 24th SSBN to be provided with C-3 capability, commenced at Newport News Shipbuilding and Drydock Company.

24 JANUARY 1973

The Gold Crew of USS TECUMSEH (SSBN 628) launched four POSEIDON (C-3) missiles in the fifth C-3 Operational Test.

3O JANUARY 1973

FBM tender USS PROTEUS (AS-19) relieved USS HUNLEY (AS 31), retaining POLARIS A-3 SSBN support capability at the Guam tender site.

8 FEBRUARY 1973

POSEIDON conversion of USS GEORGE C. MARSHALL (SSBN 654) was completed at Puget Sound Naval Shipyard. This was the 17th SSBN to be provided with C-3 capability.

16 FEBRUARY 1973

The Secretary of the Navy announced selection of Bangor, Washington, as the initial base for TRIDENT operations.

18 FEBRUARY 1973

USS GEORGE BANCROFT (SSBN 643) deployed for operational patrol carrying 16 POSEIDON C-3 tactical missiles.

2 MARCH 1973

The Gold Crew of USS CASIMIR PULASKI (SSBN 633) launched four POSEIDON (C-3) missiles in the sixth C-3 Operational Test.

15 MARCH 1973

USS ANDREW JACKSON (SSBN 619) commenced yard availability for POSEIDON conversion at Electric Boat, Groton, Conn.

22 MARCH 1973

USS HENRY L. STIMSON (SSBN 655), the 18th SSBN to be provided with C-3 capability, completed POSEIDON conversion at Newport News Shipbuilding and Drydock Company.

2 APRIL 1973

FBM tender USS HUNLEY (AS 31), the third tender to be provided with POSEIDON capability, commenced yard availability at Puget Sound Naval Shipyard.

7 APRIL 1973

USS GEORGE WASHINGTON CARVER (SSBN 656), the 19th ship in the POSEIDON conversion program, completed availability at Electric Boat, Groton, Conn. Conversion duration was 17 months.

8 APRIL 1973

USS LEWIS AND CLARK (SSBN 644), the 14th POSEIDON-carrying SSBN, deployed for operational patrol.

9 MAY 1973

The Blue Crew of USS HENRY L. STIMSON (SSBN 655) successfully launched a POSEIDON (C-3) missile In support of the ship's Demonstration and Shakedown Operation.

17 MAY 1973

USS FRANCIS SCOTT KEY (SSBN 657) completed conversion at Puget Sound Naval Shipyard. This 20th SSBN to be provided C-3 capability completed the Fiscal Year 1972 conversion program.

19 MAY 1973

The Blue Crew of USS GEORGE WASHINGTON CARVER (SSBN 656) successfully launched a POSEIDON (C-3) missile in support of the ship’s Demonstration and Shakedown Operation.

22 MAY 1973

The return of USS NATHANAEL GREENE (SSBN 636) from POSEIDON patrol marked the completion of 1100 POLARIS/POSElDON) deterrent patrols (1027 POLARIS/73 POSEIDON). This equated to approximately 181 years of submerged alert deterrence since deployment of the first POLARIS submarine, USS GEORGE WASHINGTON (SSBN 598) on 15 November 1960.

29 MAY 1973

USS KAMEHAMEHA (SSBN 642) deployed for operational patrol. Following C-3 conversion at Electric Boat, Groton, Conn. KAMEHAMEHA launched a C-3 missile during Demonstration And Shakedown operation.

10 AUGUST' 1973

The POLARIS (A-3) missile was phased out in the Atlantic when USS ROBERT E. LEE (SSBN 601) transferred to the Pacific Fleet.

20 AUGUST 1973

USS THOMAS A. EDISON (SSBN 610) completed POLARIS overhaul at Mare Island, Naval Shipyard. Overhaul was scheduled for 13-months duration.

2 SEPTEMBER 1973

USS GEORGE C. MARSHALL (SSBN 654), the 17th POSEIDON-carrying SSBN, deployed for operational patrol carrying 16 POSEIDON tactical missiles. During predeployment exercises, MARSHALL launched a C-3 missile during Demonstration And Shakedown operation.

15 SEPTEMBER 1973

The Gold Crew of FRANCIS SCOTT KEY (SSB 657) successfully Iaunched a POSEIDON (C-3) missile during Demonstration And Shakedown Operation.

26 SEPTEMBER 1973

USS HENRY L. STIMSON (SSBN 655), the 18th POSEIDON-carrying SSBN, deployed for operational patrol. During predeployment exercises, STIMSON launched a POSEIDON missile in Demonstration And Shakedown Operation.

1 OCTOBER 1973

USS WOODROW WILSON (SSBN 624), the 27th ship in the C-3 conversion program, commenced yard availability at Newport News, Shipbuilding and Drydock Company. Conversion was scheduled for 17.75 months.

12 OCTOBER 1973

USS GEORGE WASHINGTON CARVER (SSBN 656), the 19th POSEIDON-carrying SSBN deployed for operational patrol. Following C-3 conversion at Electric Boat, Groton, Connecticut, CARVER launched a C-3 at Demonstration And Shakedown Operation.

15 NOVEMBER 1973

The President signed the FY 74 Appropriation Authorization Act providing funds for the first TRIDENT submarine.

10 DECEMBER 1973

USS FRANCIS SCOTT KEY (SSBN 657), the 20th POSEIDON carrying SSBN, deployed for operational patrol. Following C-3 conversion at Puget Sound Naval Shipyard, KEY launched a C-3 missile in Demonstration and Shakedown Operation.

21 DECEMBER 1973

USS MARIANO G. VALLEJO (SSBN 658), the 21st ship in the POSEIDON conversion program, completed C-3 conversion at Newport News Shipbuilding and Drydock Company.

22 JANUARY 1974

FBM tender USS HUNLEY (AS 31) completed conversion to POSEIDON capability at Puget Sound Naval Shipyard. Conversion duration for this third tender to be provided with C-3 capability was 9.75 months.

1 FEBRUARY 1974

USS JOHN ADAMS (SSBN 620), the 28th ship in the POSEIDON conversion program, commenced yard availability at Portsmouth Naval Shipyard. Conversion was scheduled for 17.75 months.

6 FEBRUARY 1974

USS GEORGE WASHINGTON (SSBN 598) successfully launched five POLARIS A3T missiles in a Follow-on Operational Test.

8 FEBRUARY 1974

USS WILL ROGERS (SSBN 659) completed POSEIDON conversion at Portsmouth Naval Shipyard. Conversion duration for this 21st SSBN was 16 months.

6 MARCH 1974

The first flight in support of the C-4 Mk 4 Supplemental Flight Test Program was conducted from Vandenberg Air Force Base.

7 MARCH 1974

Overhaul of USS ABRAHAM LINCOLN (SSBN 602) was completed at Mare Island Naval Shipyard. Overhaul duration was 20 months.

TRIDENT-I (C-4) technical program approval was granted.

USS ETHAN ALLEN (SSBN 608) completed POLARIS overhaul at Puget Sound Naval Shipyard. Overhaul duration was 17.5 months.

30 MARCH 1974

USS THEODORE ROOSEVELT (SSBN 600) completed POLARIS overhaul at Charleston Naval Shipyard. Overhaul duration was 28.5 months.

12 APRIL 1974

The Gold Crew of USS MARIANO G. VALLEJO (SSBN 658) successfully launched a POSEIDON (C-3) missile in Support of the ship's Demonstration and Shakedown Operation.

1 MAY 1974

The second flight in the C-4 MK 4 Supplemental Flight Test Program was conducted from Vandenberg Air Force Base.

15 MAY 1974

The Gold Crew of USS WILL ROGERS (SSBN 659) successfully launched two POSEIDON (C-3) missiles in support of the ship's Demonstration and Shakedown Operation.

31 MAY 1974

The Blue Crew of USS THEODORE ROOSEVELT (SSBN 600) successfully launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

9 JUNE 1974

USS PATRICK HENRY (SSBN 599) successfully launched five POLARIS (A3T) missiles in a Follow-on Operational Test.

9 JUNE 1974

USS JOHN MARSHALL (SSBN 610) Completed her final POLARIS (A-2) deterrent patrol prior to overhaul. With completion of MARSHALL's final patrol, all of the eight POLARIS (A-2) missile carrying submarines were off-line for overhaul and conversion, the A-2 missile was phased out.

28 JUNE 1974

The third flight in support of the C-4 MK 4 Supplemental Flight Test Program was conducted from Vandenberg Air Force Base.

1 JULY 1974

USS THOMAS JEFFERSON (SSBN 618) commenced her second POLARIS overhaul at Mare Island Naval Shipyard during which she was provided with A-3 capability.

12 JULY 1974

USS MARIANO G. VALLEJO (SSBN 658), the 21st POSEIDON-carrying SSBN, deployed for operational patrol.

25 JULY1974

The Navy awarded a fixed-price incentive contract to General Dynamics Electric Boat Division for the construction of the first TRIDENT submarine. The contract included an option for construction of three additional TRIDENT submarines.

26 JULY 1974

The Gold Crew of USS ABRAHAM LINCOLN (SSBN 602) successfully launched a POLARIS (A3T) missile in Support of the ship's Demonstration and Shakedown Operation.

16 AUGUST 1974

USS ABRAIJAM LINCOLN (SSBN 602) deployed for operational patrol. Following overhaul at Mare Island Naval Shipyard, LINCOLN launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

19 AUGUST 1974

OSDP contract awarded to LMSC for missile system development plus the production of the first missiles, including re-entry body shells. The contract provided for support equipment and technical services to outfit and support operation of TRIDENT-I and back fit submarines, SWFPAC, POMFLANT, and training facilities.

27 AUGUST 1974

The Gold Crew of USS THEODORE ROOSEVELT (SSBN 600) successfully launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

29 AUGUST 1974

USS ETHAN ALLEN (SSBN 608) deployed for operational patrol. Following overhaul at Puget Sound Naval Shipyard, ALLEN launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

FBM tender USS HOLLAND (AS 32) commenced conversion to POSEIDON capability at Puget Sound Naval Shipyard. Conversion duration of this fourth tender to be provided with C-3 capability was scheduled for 9.75 months.

22 SEPTEMBER 1974

USS WILL ROGERS (SSBN 659), the 22nd POSEIDON carrying SSBN, deployed for operational patrol. Following C-3 conversion at Portsmouth Naval Shipyard, ROGERS launched a POSEIDON (C-3) missile in support of the ship's Demonstration and Shakedown Operation.

15 OCTOBER 1974

USS ROBERT E. LEE (SSBN 601) successfully launched five POLARIS (A3T) missiles in a Follow-on Operational Test.

22 OCTOBER 1974

The Blue Crew of USS WILL ROGERS (SSBN 659) successfully launched four POSEIDON (C-3) missiles in an Operational Test.

28 OCTOBER 1974

USS THEODORE ROOSEVELT (SSBN 600) deployed for operational patrol. Following overhaul at Charleston Naval Shipyard, ROOSEVELT launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

1 NOVEMBER 1974

USS JOHN MARSHALL (SSBN 611) commenced second overhaul at Mare Island Naval Shipyard. During the 15-months scheduled overhaul, MARSHALL was provided with POLARIS (A-3) capability.

7 NOVEMBER 1974

USS LAFAYETTE (SSBN 616) completed conversion at Electric Boat Division. Conversion duration for this 22nd SSBN was 24.75 months.

22 NOVEMBER 1974

The Gold Crew of USS MARIANO G. VALLEJO (SSBN 658) successfully launched four POSEIDON (C-3) missiles in the eighth Operational Test.

8 NOVEMBER 1974

The first SSBN Extended Refit Period (ERP) was completed at the Holy Loch tender refit site on USS JAMES MADISON (SSBN 627). The extended SSBN upkeep concept, a 60-day period, spaced at 4 and 7½ years, allowed accomplishment of preventive/corrective maintenance not possible during a normal 32-day upkeep.

30 NOVEMBER 1974

Overhaul of USS THOMAS A. EDISON (SSBN 610) was completed at Mare Island Naval Shipyard. Overhaul duration was 15.5 months.

11 DECEMBER 1974

Overhaul of USS COMPASS ISLAND (AG-153) was completed at Bethlehem Steel Corporation, Hoboken, New Jersey. Overhaul duration was 13 weeks.

16 DECEMBER 1974

The Blue Crew of USS LAFAYETTE (SSBN 616) successfully launched a POSEIDON (C-3) missile in support of the ship's Demonstration and Shakedown Operation.

10 JANUARY 1975

TRIDENT submarine production decision regarding Navy's recommendation of full production go-ahead.

15JANUARY 1975

USS JAMES MONROE (SSBN 622), the 29th ship in the POSEIDON conversion program, commenced conversion at Newport News Shipbuilding and Drydock Company.

19 JANUARY 1975

The fourth flight in support of the C-4 MK 4 Supplemental Flight Test Program was conducted from Vandenberg Air Force Base.

28 FEBRUARY 1975

The Navy exercised the contract option for construction of the second and third TRIDENT submarines.

7 MARCH 1975

Overhaul of USS SAM HUSTON (SSBN 609) completed at Charleston Naval Shipyard, a 27.25-month overhaul.

5 APRIL1975

The Dining Car Underground Test was conducted at the Nevada Test Site.

11 APRIL 1975

The Blue Crew of USS THOMAS A. EDISON (SSBN 610) successfully launched a POLARIS (A3T) missile In support of the ship's Demonstration and Shakedown Operation.

18 APRIL 1975

USS JAMES K. POLK (SSBN 645) successfully launched two POSEIDON (C-3) missiles in support of the C-3 Operational Test Program.

26 APRIL 1975

The Blue Crew of USS SAM HOUSTON (SSBN 609) successfully launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

29 APRIL 1975

USS HENRY CLAY (SSBN 625), the 30th ship in the POSEIDON conversion program, commenced yard availability at Portsmouth Naval Shipyard. Conversion was scheduled for 17 months.

9 MAY l975

The second Supplement Flight Test of the advanced development MK 500 Evader re-entry body was conducted from Vandenberg Air Force Base.

28 MAY 1975

The Blue Crew of USS ALEXANDER HAMILTON (SSBN 617) successfully launched two POSEIDON (C-3) missiles in support of the ship's Demonstration and Shakedown Operation.

5 JUNE 1975

Several studies were underway in the Strategic Systems Project Office. A restudy of an FBM contingency site for the Rota Squadron was directed by CNO. SSPO was designated as lead activity for site evaluation, NAVFAC as lead for site preparation, and CINCLANTFLT as lead for relocation and activity planning.

18 JUNE 1975

USS ABRAHAM LINCOLN (SSBN 602) successfully launched five POLARIS (A3T) missiles in a Follow-on Operational Test.

20 JUNE 1975

FBM tender USS HOLLAND (AS 32) completed POSEIDON conversion at Puget Sound Naval Shipyard. Conversion duration was 9.5 months.

23 JUNE 1975

The Blue Crew of USS JAMES MADISON (SSBN 627) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

24 JUNE 1975

USS GEORGE WASHINGTON CARVER (SSBN 656) successfully launched two POSEIDON (C-3) missiles in a POSEIDON (C-3) Operational Test.

27JUNE 1975

USS NATHAN HALE (SSBN 623) completed conversion to POSEIDON (C-3) capability at Puget Sound Naval Shipyard. HALE was the 25th SSBN to be provided with POSEIDON (C-3) capability. Conversion was completed in 24.5 months.

3O JUNE 1975

USS LAFAYETTE (SSBN 616), the 23rd POSEIDON-carrying SSBN, deployed for operational patrol.

7 AUGUST 1975

USS ANDREW JACKSON (SSBN 619) completed conversion to POSEIDON (C-3) capability at Electric Boat Division, Groton, Conn. JACKSON was the 26th SSBN to be provided with C-3 capability. Conversion was completed in 28.75 months.

22 AUGUST 1975

USS STONEWALL JACKSON (SSBN 634) successfully launched three POSEIDON (C-3) missiles in an Operational Test.

22 AUGUST 1975

The third Supplemental Flight Test with the MK 500 Evader was successfully launched from Vandenberg Air Force Base.

29 AUGUST 1975

The Blue Crew of USS JAMES K. POLK (SSBN 645) successfully launched two POSElDON (C--3) missiles In an Operational Test.

15 SEPTEMBER 1975

The Blue Crew of USS NATHAN HALE (SSBN 623) successfully launched a POSEIDON (C-3) missile in support of the ship's Demonstration and Shakedown operation.

26 SEPTEMBER 1975

USS SAM HUSTON (SSBN 609) deployed for operational patrol following POLARIS overhaul.

30 SEPTEMBER 1975

The fifth C-4 MK 4 Supplemental Flight Test (SFT-05) was conducted from Vandenberg Air Force Base.

10 OCTOBER 1975

The Blue Crew of USS ANDREW JACKSON (SSBN 619) successfully launched one Poseidon (C-3) missile in support of the ship's Demonstration and Shakedown Operation.

12 OCTOBER 1975

Navy Navigation Satellite TIP II was launched by the Air Force Space and Missile Test Center at Vandenberg Air Force Base, California.

23 OCTOBER 1975

USS WOODROW WILSON (SSBN 624), the 26th in the POSEIDON conversion program, completed availability at Newport News Shipbuilding and Drydock Company. Conversion duration was 25 months.

5 NOVEMBER 1975

POLARIS (A-3) overhaul of USS THOMAS JEFFERSON (SSBN 618) was completed at Mare Island Naval Shipyard with a 16.5 month duration.

8 NOVEMBER 1975

The Blue Crew of USS SAM RAYBURN (SSBN 635) successfully launched two POSEIDON (C-3) missiles in Operational Test.

13 NOVEMBER 1975

USS KAMEHAMEHA (SSBN 642) launched a POSEIDON (C-3) missile in an Operational Test.

13 NOVEMBER 1975

The sixth and final C-4 MK 4 Supplemental Flight Test (SPT-06) was conducted from Vandenberg Air Force Base.

5 JANUARY 1976

Overhaul of FBM tender USS CANOPUS (AS 34) commenced at Charleston Naval Shipyard. Overhaul was scheduled for 8-month duration.

11 JANUARY 1976

USS ALEXANDER HAMILTON (SSBN 617), the 24th POSE1DON-carrying SSBN, deployed for operational patrol.

20 JANUARY 1976

USS ETHAN ALLEN (SSBN 608) successfully conducted a POLARIS (A3T) Follow-on Operational Test.

23 JANUARY 1976

The fifth Supplemental Flight Test (SFT 105) of the MK 500 Evader re-entry body was conducted from Vandenberg Air Force Base.

24JANUARY 1976

USS THEODORE ROOSEVELT (SSBN 600) successfully conducted a POLARIS (A3T) Follow-on Operational Test.

3 FEBRUARY 1976

USS GEORGE BANCROFT (SSBN 643) successfully conducted a POSEIDON (C-3) Operational Test.

6 FEBRUARY 1976

Third overhaul of USS GEORGE WASHINGTON (SSBN 598) commenced at Mare Island Naval Shipyard. Overhaul was scheduled for a 17-month duration.

14 FEBRUARY 1976

The Gold Crew of USS WOODROW WILSON (SSBN 624) successfully launched a POSEIDON (C-3) missile in support of the ship's Demonstration and Shakedown Operation.

20 FEBRUARY 1976

The contract option for construction of the fourth TRIDENT submarine was exercised.

7 MARCH 1976

The first POSEIDON conversion overhaul of USS DANIEL BOONE (SSBN 629) commenced at Portsmouth Naval Shipyard. Overhaul was scheduled for a 16-month duration.

29 MARCH 1976

The Blue Crew USS THOMAS JEFFERSON (SSBN 6I8) successfully launched a POLARIS (A3T) missile in support of the ship's Demonstration and Shakedown Operation.

10 APRIL 1976

Keel laying ceremony for lead TRIDENT Submarine, TRIDENT (SSBN 726) was held at General Dynamics, Electric Boat Division, Groton, Connecticut. Mrs. Robert Taft, Jr., wife of Senator Taft (R. Ohio) was the sponsor.

15 APRIL 1976

POSEIDON (C-3) conversion of USS JOHN ADAMS (SSBN 620), the last ship in the FY 1974 Conversion program, was completed at Portsmouth Naval Shipyard.

20 APRIL 1976

USS GEORGE WASHINGTON CARVER (SSBN 656) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

23 APRIL 1976

USS LEWIS AND CLARK (SSBN 644) successfully launched two POSEIDON (C-3) missiles in an operational Test.

10 MAY 1976

Secretary of the Navy J. William Middendorf II announced that the name of the second TRIDENT submarine would be MICHIGAN.

23 MAY 1976

Overhaul of USS JOHN MARSHALL (SSBN 611) was completed at Mare Island Naval Shipyard. Overhaul duration was 18.75 months.

25 MAY 1976

The Blue Crew of USS JOHN ADAMS (SSBN 620) successfully launched a POSEIDON (C-3) missile In support of the ship's Demonstration and Shakedown Operation.

30 MAY 1976

USS ANDREW JACKSON (SSBN 619) deployed for operational patrol. During pre-deployment exercises, JACKSON successfully launched a POSEIDON missile during DASO.

1 JUNE 1976

Third overhaul of USS PATRICK HENRY (SSBN 599) commenced at Mare Island Naval Shipyard. Overhaul was scheduled for a 17-month duration.

22 JUNE 1976

USS VON STEUBEN (SSBN 682) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

26 JUNE 1976

USS BENJAMIN FRANKLIN (SSBN 640) successfully launched two POSEID0N (C3) missiles in an Operational Test.

14 JULY 1976

USS THOMAS JEFFERSON (SSBN 618) deployed for operational patrol. During the pre-deployment period, JEFFERSON launched a POLARIS (A3T) missile during DASO.

2 AUGUST 1976

The first SSBN Extended Refit Period (ERP) at the Rota, Spain, tender refit site was completed on USS GEORGE BANCROFT (SSBN 643).

4 AUGUST 1976

USS WOODROW WILSON (SSBN 624), the 27th POSEIDON-carrying SSBN, deployed for operational patrol. During the pre-deployment period, WILSON successfully launched a POSEIDON missile during DASO.

20 AUGUST 1976

USS NATHANAEL GREENE (SSBN 636) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

28 AUGUST 1976

USS SIMON BOLIVAR (SSBN 641) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

28 AUGUST 1976

Overhaul of FBM tender USS CANOPUS (AS 34) was completed at Charleston Naval Shipyard. 

The third satellite in the TRANSIT Improvement Program, TIP III, was launched from Vandenberg Air Force Base.

2 SEPTEMBER 1976

USS THOMAS A. EDISON (SSBN 610) successfully launched two POLARIS (A3T) missiles in a Follow-on Operational Test.

7 SEPTEMBER 1976

USS SAM HOUSTON (SSBN 609) successfully launched two POLARIS (A3T) missiles in a Follow-on Operational Test.

18 SEPTEMBER 1976

The Blue Crew of USS JOHN MARSHALL (SSBN 611) successfully launched a POLARIS (A3T) missile In support of the ship's Demonstration and Shakedown Operation.

20 NOVEMBER 1976

USS JOHN ADAMS (SSBN 610) deployed for operational patrol.

23 NOVEMBER 1976

USS HENRY L. STIMSON (SSBN 655) successfully launched two POSEIDON (C-3) missiles in an Operational Test.

26 NOVEMBER 1976

FBM tender USS CANOPUS (AS 34) deployed to relieve USS SIMON LAKE (AS 33) at the Rota, Spain, tender site.

30 NOVEMBER 1976

The Secretary of the Navy announced that Kings Bay, Georgia, had been identified for further study as the preferred alternative location for the possible construction of an East Coast refit site for Navy Fleet Ballistic Missile (FBM) submarines.

10 DECEMBER 1976

USS JOHN MARSHALL (SSBN 611) deployed for operational patrol. During predeployment exercises, MARSHALL successfully launched a POLARIS missile in support of the ship's Demonstration and Shakedown Operation.

3 JANUARY 1977

Third overhaul of USS ROBERT E. LEE (SSBN 601) commenced at Mare Island Naval shipyard. Overhaul was scheduled for a 17-month duration.

17 JANUARY 1977

TRIDENT-I (C-4) production decision regarding the Navy's recommendation of full production go-ahead.

18 JANUARY 1977

The first flight test in the TRIDENT-I (C4) development program, C4X-1, was successfully conducted from flat Pad 25C at Cape Canaveral.

28 JANUARY 1977

USS NATHAN HALE (SSBN 623) successfully launched four POSEIDON (C-4) missiles in a Follow-on Operational Test

3 FEBRUARY 1977

PEM tender USS SIMON LAKE commenced overhaul at Charleston Naval Shipyard. Overhaul duration for this first tender to be provided with C-4 capability was scheduled for 12 months.

4 FEBRUARY 1977

USS TECUMSEH (SSBN 628) successfully launched two POSEIDON (C-4) missiles in a Follow-on Operational Test.

15 FEBRUARY 1977

The second flight test in the TRIDENT-I (C-4) development program, C4X-2, was successfully conducted from flat Pad 25C at Cape Canaveral.

23 FEBRUARY 1977

With the completion of patrol of USS GEORGE WASHINGTON CARVER (SSBN 656) and the return to the Rota, Spain, tender refit site, a total of 1500 POLARIS/POSEIDON patrols were successfully completed. This equated to nearly 250 continuous years of submerged deterrence. No patrols had been aborted for deficiency in weapon system operational support.

24 MARCH 1977

USS WOODROW WILSON (SSBN 624) successfully launched two POSEIDON (C-4) missiles in a Follow-on Operational Test.

28 MARCH 1977

USS GEORGE C. MARSHALL (SSBN 654) successfully launched two POSEIDON (C-4) missiles in Follow-on Operational Test.

29 APRIL 1977

The fourth flight test in the TRIDENT-I (C-4) development program, C4X-6 was successfully conducted from Flat Pad 25C at Cape Canaveral.

14 MAY 1977

Conversion of USS JAMES MONROE (SSBN 622) was completed at Newport News Shipbuilding and Drydock Company. This 29th C-3 conversion was completed in 28 months.

24 MAY 1977

The 400th POSEIDON (C-3) patrol was completed by USS BENJAMIN FRANKLIN (SSBN 640) upon its return to the Rota, Spain, tender refit site.

1 JUNE 1977

USS ULYSSES S. GRANT (SSBN 631) commenced overhaul at Newport News Shipbuilding and Drydock Company. Overhaul was scheduled for 17 months.

6 JUNE 1977

The Navy awarded a fixed-price incentive contract to General Dynamics Electric Boat Division for the construction of the fifth TRIDENT submarine. The contract included an option for two additional TRIDENT submarines.

16 JUNE 1977

USS THOMAS A. EDISON (SSBN 610) successfully launched five POLARIS (A-3) missiles in a Follow-on Operational Test.

27JUNE 1977

The fifth flight test in the TRIDENT-I (C-4) development program, C4X-8, was successfully conducted from flat pad 25C at Cape Canaveral.

29 JULY 1977

USS HENRY CLAY (SSBN 625), the 30th ship in the POSEIDON conversion program, completed availability at Portsmouth Naval Shipyard. Conversion duration was 27 months.

3 AUGUST 1977

The Blue Crew USS JAMES MONROE (SSBN 622) successfully launched a POSEIDON (C-3) missile in support of the ship's Demonstration Shakedown Operation (DASO).

18 AUGUST 1977

The sixth flight test in the TRIDENT-I (C-4) development program was successfully conducted from Flat Pad 25C at Cape Canaveral.

3 SEPTEMBER 1977

The seventh flight test in the TRIDENT-I (C-4) development program was successfully conducted from Flat Pad 25C at Cape Canaveral.

6 SEPTEMBER 1977

The Blue Crew of USS HENRY CLAY (SSBN 625) successfully launched a POSEIDON (C-3) missile in support of the ship's Demonstration and Shakedown Operation (DASO).

27 SEPTEMBER 1977

USS TECUMSEH (SSBN 628) commenced overhaul at Portsmouth Naval shipyard.

19 OCTOBER 1977

The eighth flight test In the TRIDENT-I (C-4) development program was successfully conducted from Flat Pad 25C at Cape Canaveral.

27 OCTOBER 1977

USS JAMES MADISON (SSBN 627) completed Extended Refit Period (ERP). This was the first ERP conducted by a naval shipyard at an overseas site.

14 NOVEMBER 1977

Rear Admiral Levering Smith, USN, was relieved by Rear Admiral Robert H. Wertheim, USN, as the Director, Strategic Systems Projects. Upon being relieved of active duty on that date, he was pointed to the rank of Vice Admiral on the retired list, effective 15 November 1977.

5 DECEMBER 1977

The ninth flight test in the TRIDENT-l (C-4) development program was successfully conducted from Flat Pad 25C at Cape Canaveral.

14 DECEMBER 1977

USS JAMES MONROE (SSBN 622) deployed following POSEIDON (C-3) overhaul at Newport News Shipbuilding and Drydock Company.

The 10th flight test in the TRIDENT-I (C4) development program was successfully conducted from Flat Pad 25C at Cape Canaveral.

26 JANUARY 1978

The Secretary of the Navy announced that Kings Bay, Ga., would be the site of the new Submarine Support Base.

1 FEBRUARY 1978

USS SAM RAYBURN (SSBN 635) commenced POSEIDON overhaul at Portsmouth Naval Shipyard.

4 FEBRUARY 1978

FBM tender USS SIMON LAKE (AS 33) completed C-3/C-4 overhaul at Charleston Naval shipyard. Overhaul duration was 12 months.

14 FEBRUARY 1978

The 11th flight test in the TRIDENT-I (C-4) development program was conducted from Flat Pad 25C at Cape Canaveral.

21 FEBRUARY 1978

USS DANIEL WEBSTER (SSBN 626), the 31st and final SSBN to be provided with POSEIDON

(C-3) capability, completed conversion at Electric Boat, Groton, Conn. Conversion duration was 27 months.

22 FEBRUARY 1978

Overhaul of USS GEORGE WASHINGTON (SSBN 598) was completed at Mare Island Naval Shipyard. Overhaul duration was 24.75 months.

27 FEBRUARY 1978

The Navy exercised the contract option for construction of the sixth and seventh TRIDENT submarines.

3 MARCH 1978

USS PATRICK HENRY (SSBN 599) completed overhaul at Mare Island Naval Shipyard. Overhaul duration was 20 months.

11 MARCH 1978

USS ABRAHAM LINCOLN (SSBN 602) became the first SSBN to complete 50 strategic deterrent patrols.

24 MARCH 1978

USS DANIEL BOONE (SSBN 629) completed overhaul at Portsmouth Naval Shipyard. This was the first overhaul completion of a POSEIDON submarine. Overhaul duration was 24 months.