On 27 July 1942, LST-1-class tank landing ship USS LST-393 was laid down at Newport News Shipbuilding and Drydock Co. in Newport News, VA
MuseumShip Blog
On 27 July 1949 landlocked "dummy" training ship USS Recruit (TDE-1) was commissioned. She was built to scale, two-thirds the size of a Dealey-class destroyer escort.
On 27 July 1951 Balao-class submarine USS Bowfin (SS-287) was commissioned for the second time with LCDR Charles C. Wilbur in command.
Following shakedown training, she sailed for the Pacific. After arriving at San Diego, California, on 6 October 1951, she worked from that port for the next two years, devoting her time to training operations and local exercises.
On 27 July 1955 a replica of the 17th-century ship Mayflower, Mayflower II was laid down at the Upham Shipyard, Bixham, Devon, UK.
On 27 July 1943, Harbour Defence Motor Launch HMS Medusa was laid down at R A Newman and Sons in Hamworthy, Poole, Dorset, UK.