On 27 April 1998, Portuguese 50 gun frigate Dom Fernando II e Glória was reinstated in the Portuguese Navy as an Auxiliary Navy Unit (UAM 203).
On 27 April 1992, steam-propelled, sidewheel dustpan dredge William M. Black was designated a National Historic Landmark
MuseumShip at the National Mississippi River Museum & Aquarium, Dubuque, IA
on 27 April 1992 USCGC Ingham (WHEC--35) was added to the National Register of Historic Places (NRHP) and designated a National Historic Landmark
MuseumShip at USCGC Ingham Museum, Key West, FL
40 years ago today, on 27 April 1984, type XXI U-boat Wilhelm Bauer (U-2540) , opened as a museum ship in Bremerhaven, Germany, sponsored by the Wilhelm Bauer Technology Museum association.
on 27 April 1978 Oberon class submarine HMAS Otama (SS62) was commissioned
Future MuseumShip at Victorian Maritime Centre, Crib Point, VIC, Australia
On 27 April 1945 River-class frigate HMAS Diamantina (K377) was commissioned with Lt. Commander Maurice Rose RANR in command.
MuseumShip at Queensland Martime Museum, Brisbane, QLD, Australia
