27 Apr 1943
  • USS Puffer was commissioned into service with Lieutenant Commander M. J. Jensen in command. ww2dbase [Main Article | CPC]
  • USS Scorpion fired six torpedoes at a Japanese convoy, sinking the merchant ship Yuzan Maru with four hits; she was depth charged by an escorting destroying and suffered minor damage. ww2dbase [Main Article | CPC]
  • The German Inspector of Concentration Camps ordered that only the mentally ill prisoners could be gassed via the Aktion T-4 Euthaniasia Program. ww2dbase [Main Article | CPC]
  • Radar jamming devices began operations in eastern England, United Kingdom. ww2dbase [CPC]
  • Captain Lord Charles Lyell was killed in Tunisia whilst knocking out a 88mm gun position and two machine gun posts. He was posthumously awarded the Victoria Cross. ww2dbase [AC]
  • Admiral Dönitz issued a new order to his submarine commanders, instructing that they were to cross the Bay of Biscay submerged during the night and to resurface during the day only long enough to recharge their batteries. This proved something of a mistake for the Germans as it permitted some 12 RAF Squadrons to contribute to daylight anti-submarine operations. ww2dbase [Main Article | AC]
  • Orde Wingate and his small group of Chindits reached the Chindwin River in Burma. They were able to cross it later in the day with the help of Gurkha Rifles men from the western bank of the river. ww2dbase [Main Article | CPC]
Australian Papua
  • George Kenney departed Port Moresby, Australian Papua for Brisbane, Australia. ww2dbase [Main Article | CPC]
  • German submarine U-518 arrived at Lorient, France and disembarked three prisoners captured from Swedish motor merchant Industria, which U-518 had sunk on 25 Mar 1943. The prisoners were later repatriated by aircraft to Sweden. ww2dbase [HM]
  • The 17,526-ton Japanese troop carrier Kamakura Maru departed Manila, Philippines with 2,500 oil production workers and army medical personnel, heavy vehicles, and ammunition on board, bound for Balikpapan, Borneo, Dutch East Indies. ww2dbase [HM]
US Pacific Islands
  • USS Tunny departed Midway Atoll for Pearl Harbor, US Territory of Hawaii. ww2dbase [Main Article | Facility | CPC]
Photo(s) dated 27 Apr 1943
USS Yorktown underway off Norfolk Navy Yard, Portsmouth, Virginia, United States, 27 Apr 1943; note Measure 21 camouflageOverhead view of USS Yorktown (Essex-class) at Newport News, Virginia, United States, 27 Apr 1943USS Yorktown (Essex-class) at Norfolk, Virginia, United States, 27 Apr 1943USS Yorktown (Essex-class) at Norfolk, Virginia, United States, 27 Apr 1943

27 Apr 1943 Interactive Map

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis

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Famous WW2 Quote
"We no longer demand anything, we want war."

Joachim von Ribbentrop, German Foreign Minister, Aug 1939