Ethan Allen-class Nuclear Ballistic Missile Submarine

The Ethan Allen-class of fleet ballistic missile submarine was an evolutionary development from the George Washington-class. The Ethan Allen, together with the George Washington, Lafayette, James Madison, and Benjamin Franklin classes comprised the "41 for Freedom" that were the Navy's main contribution to the nuclear deterrent force through the late 1980s.

Unit Run

 * USS Ethan Allen (SSBN-608)
 * USS Sam Houston (SSBN-609)
 * USS Thomas A. Edison (SSBN-610)
 * USS John Marshall (SSBN-611)
 * USS Thomas Jefferson (SSBN-612)