July 20th - On This Date - US Navy Submarine Service

• 07/20/1942 - Keel is laid for the USS Ray (SS 271)
• 07/20/1942 - USS Scamp (SS 277) is launched
• 07/20/1942 - USS Scorpion (SS 278) is launched
• 07/20/1944 - USS Tigrone (SS 419) is launched
• 07/20/1946 - USS Pogy (SS 266) is decommissioned for the second time
• 07/20/1946 - USS Crevalle (SS 291) is decommissioned
• 07/20/1946 - USS Tirante (SS 420) is decommissioned
• 07/20/1960 - While submerged off the coast of Cape Canaveral, Florida, USS George Washington (SSBN-598) successfully fires two Polaris A-1 missiles with a range of 1,200 miles. This year, she will depart Charleston, South Carolina on the first operational strategic patrol with the Polaris missile system.

• 07/20/1985 - USS Key West (SSN 722) is launched
• 07/20/1990 - Keel is laid for the USS Maine (SSBN 741)