On This Day - 29 April
- The submarine HMAS AE 2, (LCDR H. H. G. D. Stoker, RN), unexpectedly encountered the British submarine HMS E14 (LCDR E. C. Boyle, RN), off Kara Burnu Point, in the Sea of Mamara. The British submarine had penetrated the Dardanelles the day before. Both captains agreed to rendezvous the next day, however, AE2 was sunk before the rendezvous could be made.
- CDRE A. P. Addison, CMG, was appointed Commodore Commanding His Majesty's Australian Squadron.
- HMAS PERTH, (cruiser), engaged a German E boat with her main armament in Kasos Strait, off Crete. The E boat withdrew at high speed.
- The Japanese submarine I-180 torpedoed the merchant ship WOLLONGBAR off Port Macquarie, NSW.
The Brisbane based USS GATO, (submarine) landed a party of 16 Australian Coastwatchers on Teop Island, in the Solomons, and evacuated a group of missionaries, including the Bishop of Bougainville.
'On This Day' is based on the book "Navy Day by Day: Historic Naval Events in Australia and Abroad" written by the late Lew Lind. More information.