04/01 Thu. United States Naval Operating Facility, Grondal, Greenland,
is established.
Naval Air Station, Patuxent River, Md., is established.
04/03 Sat. Japanese naval vessel sunk:
Submarine chaser No. 13, by submarine PICKEREL (SS-177),
off Japan,
43 d. 03' N., 141 d. 58' E.
04/05 Mon. Japanese submarine sunk:
RO-34, by destroyer O'BANNON (DD-450),
Solomon Islands area,
08 d. 15' S., 158 d. 58' E.
04/07 Wed. Submarine TROUT (SS-202) lays mines near Sarawak, Borneo.
Japanese aircraft make heavy strike against United States
naval vessels near Tulagi, Solomon Islands.
United States naval vessel sunk, Tulagi, Solomon Islands:
Destroyer AARON WARD (DD-483) and oiler KANAWHA (AO-1), by
horizontal bombers.
United States naval vessel damaged, Tulagi, Solomon Islands:
Cargo ship ADHARA (AK-71) and oiler TAPPAHANNOCK (AO-43),
by dive bombers.
04/09 Fri. Rank of Commodore, United States Navy, is reestablished.
Japanese naval vessel sunk:
Destroyer ISONAMI, by submarine TAUTOG, (SS-199),
off Celebes,
05 d. 26' S., 123 d. 04' E.
04/10 Sat. United States naval vessel sunk:
Submarine TRITON (SS-201), Pacific Ocean area, reported as
presumed lost.
04/15 Thu. Carrier YORKTOWN (CV-10) is commissioned at Newport News,
Va.; this vessel is named fro carrier YORKTOWN (CV-5), sunk 7
June, 1942, after the Battle of Midway.
Italian submarine sunk:
Archimede, by naval land-based aircraft, (VP-83),
off coast of Brazil,
03 d. 23' S., 30 d. 28' W.
04/17 Sat. German submarine sunk:
U-175, by Coast Guard cutter SPENCER (PG-36),
North Atlantic area,
48 d. 50' N., 21 d. 21' W.
04/18 Sun. Admiral Yamamoto, Commander in Chief Japanese Combined Fleet,
is killed when his aircraft if shot down by Army aircraft.
04/19 Mon. Submarine SCORPION (SS-278) lays mines off Kashima Nada,
Japan.
04/20 Tue. Submarine RUNNER (SS-275) lays mines near Hong Kong.
04/21 Wed. Submarine STINGRAY (SS-186) lays mines near Wenchow, China.
04/22 Thu. Japanese aircraft bomb airfield at Funafuti, Ellice Islands.
United States naval vessel sunk:
Submarine GRENADIER (SS-210), by enemy air attack and
scuttling, Straits of Malacca.
04/23 Fri. Japanese naval vessel sunk:
Patrol boat NO. 39, by submarine SEAWOLF (SS-197),
off Formosa,
23 d. 45' N., 122 d. 45' E.
04/26 Mon. Task group of 3 cruiser and 6 destroyers (Rear Adm. C. H.
McMorris) bombards Japanese installations at Attu, Aleutian
Islands.
United States Naval Station, Mers el Kebir, Morocco, is
established.
04/27 Tue. German submarine sunk:
U-174, by naval land-based aircraft (VB-125),
North Atlantic area,
43 d. 35' N., 56 d. 18' W.
04/29 Thu. Submarine GATO (SS-212) lands coast watchers at Teop Island,
Solomon Islands, and evacuates missionaries.
04/30 Fri. Submarine GUDGEON (SS-211) lands personnel and equipment on
Panay, P. I.
Submarine SNOOK (ss-279) lays mines off Saddle Island, China.
United States Atlantic Fleet turns over responsibility for
convoys between Halifax and United Kingdom to British and
Canadian naval forces.