ETHAN ALLEN CLASS SUBMARINES FACT SHEET

By Cliff Lethbridge

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ETHAN ALLEN CLASS SUBMARINES

Launch Status: Retired

Number Placed In Service: 5

Length: 410 Feet

Beam: 33 Feet

Surface Displacement: 6,900 Tons

Submerged Displacement: 7,900 Tons

Propulsion: Steam Turbine Powered by Water-Cooled Nuclear Reactors

Torpedoes: 4 Bow Torpedo Tubes

Officer Berths: 15

Enlisted Berths: 130

Missile Capacity: 16

Launch Tubes: 16 Tubes Midship

Launch Control: Air Ejection

Fire Control System: Mk 80

Navigation System: 2 Mk 2 Mod 3 SINS and Satellite Receiver

SSBN 608 USS ETHAN ALLEN

Date Commissioned: August 8, 1961

Date Decommissioned: March 31, 1986

First Cape Launch: October 16, 1961

Final Cape Launch: August 9, 1974

Total Number of Cape Launches: 27

Vehicles Launched: Polaris A1, Polaris A2, Polaris A3

Current Status: Dismantled

SSBN 609 USS SAM HOUSTON

Date Commissioned: March 6, 1962

Date Decommissioned: August 12, 1991

First Cape Launch: April 25, 1962

Final Cape Launch: April 26, 1975

Total Number of Cape Launches: 19

Vehicles Launched: Polaris A2, Polaris A3

Current Status: Dismantled

SSBN 610 USS THOMAS A. EDISON

Date Commissioned: March 10, 1962

Date Decommissioned: December 1, 1983

First Cape Launch: May 23, 1962

Final Cape Launch: April 12, 1975

Total Number of Cape Launches: 17

Vehicles Launched: Polaris A2, Polaris A3

Current Status: Dismantled

SSBN 611 USS JOHN MARSHALL

Date Commissioned: May 21, 1962

Date Decommissioned: July 22, 1992

First Cape Launch: July 12, 1962

Final Cape Launch: September 18, 1976

Total Number of Cape Launches: 23

Vehicles Launched: Polaris A2, Polaris A3

Current Status: Dismantled

SSBN 618 USS THOMAS JEFFERSON

Date Commissioned: January 4, 1963

Date Decommissioned: February 1, 1985

First Cape Launch: February 21, 1963

Final Cape Launch: March 29, 1976

Total Number of Cape Launches: 14

Vehicles Launched: Polaris A2, Polaris A3

Current Status: Dismantled