January 18th - On This Date - USN Submarine History

1919 -

PCU R-3 (SS-80) launched at Fore River Shipbuilding Company, Quincy, MA; sponsored by Mrs. Charles G. McCord.

1919 -

PCU S-23 (SS-128) keel laid as S-23 at Bethlehem Shipbuilding Corporation, Quincy, MA; sponsored by Miss Barbara Sears.

1957 - 

USS MUSKALLUNGE (SS-262) second decommissioning. Transferred, on loan, under the Military Assistance Program, to Brazil, renamed Humanita (S-14).

1957 -

USS PADDLE (SS-263) second decommissioning. Transferred, on loan, under the Mutual Defense Assistance Program, to Brazil; renamed Riachuelo (S-15). Reported as having sunk pierside on or about 30 June 1968.

1965 -

President Johnson announced plans to develop Poseidon, a more powerful missile than the Polaris A-3.

1977 -

the first launch of a Trident missile at Cape Canaveral, FL. The C-4 was based on an extended-range version of the older Poseidon missile and led to the current and more advanced Trident II D-5 missile. First deployed in 1979, the Trident I was used on 12 Lafayette-class and the first eight Ohio-class submarines.