ETHAN ALLEN CLASS SUBMARINES FACT SHEET
By Cliff Lethbridge
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