Events on this day
This page is our compilation of data from several different databases. All data shown here is dynamic, but is accurate according to the information we have right now. Although content is still being added daily, more than 75% of the launched and commissioned data is already in place, so this section is almost complete.
The Shipyard Report
Laid down (41)
1940: Corvette Napanee (K 118)
1944: Landing Craft Tank LCT 1091 (LCT 1091) - Landing Craft Tank LCT 1145 (LCT 1145) - Tank landing ship LST 3514 (LST 3514) - Destroyer Adams (DM 27) - Minesweeper Hilarity (AM 241) - Landing Craft Infantry LCI(L)-751 (LCI(L)-751) - Landing Craft Infantry LCI(L)-752 (LCI(L)-752) - Landing craft tank LCT 895 (LCT 895) - Medium landing ship LSM 11 (LSM 11) - Medium landing ship LSM 12 (LSM 12) - Medium landing ship LSM 7 (LSM 7) - Tank landing ship LST 567 (LST 567) - Motor torpedo boat PT 479 - Motor torpedo boat PT 480 - Destroyer Escort Rolf (DE 362)
1912: MS Trawler Libra (ii) (FY 867)
1916: MS Trawler Rotterdam (FY 1741)
1924: Ocean boarding vessel Cavina
1926: Submarine Katsonis (Y 1)
1934: Submarine M-21
1935: Submarine Otaria
1943: Motor minesweeper MMS 240 (J 740) - Minesweeper Rinaldo (J 225) - Destroyer Escort Fogg (DE 57) - Landing craft tank LCT 1023 (LCT 1023) - Destroyer Escort Marchand (DE 249) - Submarine chaser SC-1317 (SC-1317) - Fleet tug Tekesta (AT 93) - Minesweeper YMS-177 (YMS-177) - Minesweeper YMS-285 (YMS-285) - Minesweeper YMS-286 (YMS-286) - Minesweeper YMS-338 (YMS-338)
1944: Frigate Strathadam (K 682) - Destroyer Escort Haas (DE 424) - Landing Craft Infantry LCI(L)-961 (LCI(L)-961) - Landing Craft Infantry LCI(L)-962 (LCI(L)-962) - Landing Craft Infantry LCI(L)-963 (LCI(L)-963) - Landing craft tank LCT 1058 (LCT 1058) - Landing craft tank LCT 867 (LCT 867) - Tank landing ship LST 1007 (LST 1007) - Tank landing ship LST 604 (LST 604) - Tank landing ship LST 659 (LST 659)
1946: Oiler Waccamaw (AO 109)
1930: Destroyer Antelope (H 36)
1931: Destroyer Keith (D 06)
1936: Destroyer Grafton (H 89)
1939: Oiler Cimarron (AO 22)
1941: MS Trawler Juliet (T 136)
1943: Destroyer Ottawa (ii) (H 31) - Harbour Defence Motor Launch HDML 1277 (ML 1277) - Landing Craft Infantry LCI(L)-277 (LCI(L)-277) - Landing Craft Infantry LCI(L)-293 (LCI(L)-293) - Tank landing ship LST 199 (LST 199) - Tank landing ship LST 200 (LST 200) - Tank landing ship LST 9 (LST 9) - Destroyer Ammen (DD 527) - Submarine Billfish (286) - Destroyer Dashiell (DD 659) - Destroyer Escort Edgar G. Chase (DE 16) - Tank landing ship LST 475 (LST 475) - Tank landing ship LST 482 (LST 482) - Motor torpedo boat PT 225 - Motor torpedo boat PT 226 - Minesweeper YMS-195 (YMS-195) - Minesweeper YMS-227 (YMS-227) - Submarine M-200
1944: Rescue Tug Freedom (W 139) - Landing Craft Tank LCT 1084 (LCT 1084) - Destroyer Blue (ii) (DD 744) - Destroyer Escort Dennis (DE 405) - Landing Craft Infantry LCI(L)-575 (LCI(L)-575) - Tank landing ship LST 600 (LST 600) - Tank landing ship LST 654 (LST 654) - Destroyer Escort Mason (DE 529) - Patrol craft PCS-1419 (PCS-1419) - Destroyer Preston (ii) (DD 795) - Destroyer tender Sierra (AD 18)
1945: Destroyer escort Bocaina (Be 8) - Tank landing ship LST 1066 (LST 1066) - Tank landing ship LST 1130 (LST 1130) - Destroyer Myles C. Fox (DD 829) - Patrol craft PC-809 (PC-809) - Minesweeper YMS-445 (YMS-445)
1946: Cutter Escanaba (WPG 64)
Laid down means that the ship's construction was officially started by laying down the keel (often just a single steel beam but could also mean the first of many pre-fabricated sections).
Launched means that the ship was launched from its shipyard, it then began its fitting out period (installation of smaller systems, weapons etc.) - in many yards the ships were launched very complete and needed little work afterwards.
Commissioned is when the navy takes the ship officially over and gives command of it to its new captain.
War Losses on 20 March (5)
1941: Tug Sir Bevois
1942: Escort destroyer Heythrop (L 85)
More information on Allied Warships losses.
General Events on 20 March
Submarine HMS Parthian: HMS Parthian (Lt.Cdr. M.G. Rimington, RN) conducted exercises off Hong Kong.
Submarine HMS Phoenix: HMS Phoenix (Lt.Cdr. C.A. Rowe, RN) conducted exercises off Hong Kong with HMS Pandora (Lt.Cdr. J.W. Linton, RN).
Submarine HMS Pandora: HMS Pandora (Lt.Cdr. J.W. Linton, RN) conducted exercises off Hong Kong with HMS Thanet (Lt.Cdr. J. Mowlam, RN).
Submarine HMS Regulus (i): HMS Regulus (Cdr. J.M. Money, RN) was taken in hand for refit at Hong Kong.
Submarine HMS Tarpon: HMS Tarpon (Lt.Cdr. H.J. Caldwell, RN) arrived at Portsmouth.
Submarine HMS H 33: HMS H 33 (Lt. G.C.I.St B.S. Watkins, RN) departed Plymouth for her 2nd war patrol. She is ordered to patrol off the west coast of Ireland with HMS Comet. For the daily positions of HMS H 33 during this patrol see the map below. (HMS Comet was operating very near to HMS H 33).
Heavy cruiser HMS Dorsetshire: HMS Dorsetshire (Capt. B.C.S. Martin, RN) is undocked.
Submarine HNMS O 9: HrMs O 9 (Lt. H.A.W. Goossens, RNN) participated in A/S exercises off Lough Foyle together with HMS Chesterfield (Lt.Cdr. E. Gleave, RNR) and HMCS St.Francis (Lt.Cdr. H.F. Pullen, RCN).
Submarine HMS Ursula: At 1700 hours (zone -2) HMS Ursula (Lt. A.J. Mackenzie, RN) received a signal ordering her to carry out operation 'Sich'. This was an operation to carry out a reconnaissance to the North and the East of Cape Bon to establish enemy convoy routes in that area and to find out positions of minefields (Ursula was fitted with a Mine Detector Unit). The enemy convoy was thought to have gone past or evaded the position of Ursula by that time.
Submarine HMS Unbeaten: HMS Unbeaten (Lt. E.A. Woodward, RN) arrived at Dartmouth for more A/S exercises.
Submarine HMS Oberon: HMS Oberon (Lt.Cdr. E.F. Pizey, DSC, RN) participated in A/S exercises off Campbeltown.
Submarine HMS Porpoise: HMS Porpoise (Lt.Cdr. J.G. Hopkins, RN) departed Halifax for her 12th war patrol. She was ordered to provide escort for convoy SC 26. For the daily positions of HMS Porpoise during this patrol see the map below.
Submarine HMS Sturgeon: HMS Sturgeon (Lt.Cdr. D. St. Clair-Ford, RN) attacked a southbound merchant vessel with two torpedoes near Obrestad, Norway. No hits were obtained. 1405 hours - Sighted a southbound merhant vessel. Started attack. 1410 hours - Visibility decreased, abandoned attack. 1510 hours - Sighted merchant vessel of about 3000 tons bearing 058°, range 3 nautical miles. Enemy course was 140°. Started attack. 1529 hours - In position 58°35'N, 05°23'E, fired two torpedoes from 4500 yards. No hits were obtained. The torpedoes were heard to explode after 8 minutes when they most likely hit the shore.
Submarine HMS Thunderbolt: HMS Thunderbolt (Lt. C.B. Crouch, DSO, RN) joins convoy HX-115.
Submarine HMS Union: HMS Union (Lt. R.M. Galloway, RN) is ordered to take up a patrol position in the Bay of Biscay. The passage to Portsmouth now became her 1st war patrol. As no log is available for March 1941 no map can be displayed.
Submarine HMS H 32: HMS H 32 (Lt. B.G. Heslop, DSC, RN) participated in A/S exercises off Ardrishaig.
Submarine HMS H 33: HMS H 33 (Lt. C.H. Rankin, RN) participated in A/S exercises off Tobermory.
Battleship HMS Malaya: At 23.23 hours on 20 March 1941, German U-boat U-106 attacked the shadow of a merchant ship with a spread of two stern torpedoes in bad light from the port side of the convoy SL-68 about 250 miles west-northwest of the Cape Verde Islands in position 20°02'N, 25°50'W. One torpedo hit and damaged the British battleship HMS Malaya (Capt. A.F.E. Palliser, DSC, RN) which was hit on the port side, causing considerable damage. Due to the flooding of some rooms the ship took a list of 7 degrees, but safely reached Trinidad. After temporary repairs were made, she continued to the New York Navy Yard, where the battleship was docked for 4 months. On 9 July, the ship left for the Clyde, arriving on 28 July.
Submarine HMS L 26: HMS L 26 (Lt. S.L.C. Maydon, RN) conducted A/S exercises in the Clyde area with HMS Legion (Cdr. R.F. Jessel, RN).
Submarine HMS L 26: HMS L 26 (Lt. S.L.C. Maydon, RN) conducted A/S exercises in the Clyde area with HMS Legion (Cdr. R.F. Jessel, RN).
Submarine HNMS K XII: HrMs K XII (Lt.Cdr. H.C.J. Coumou, RNN(R)) arrived at Fremantle.
Submarine HNMS O 14: HrMs O 14 (Lt.Cdr. H.A.W. Goossens, RNN) arrived at Lerwick.
Submarine HNMS O 9: HrMs O 9 (Lt. J.F. Drijfhout Van Hooff, RNN) participated in A/S exercises off Tobermory together with HMS Lady Sharazad (Lt.Cdr. W.C. Shepherd, RNR) and HMS Trondra (T/Lt. G.H. Riches, RNVR).
Submarine HNMS O 10: HrMs O 10 (Lt. Baron D.T. Mackay, RNN) participated in A/S exercises off Lough Foyle together with HMS Bulldog (Cdr. M. Richmond, OBE, RN) and HMS Richmond (Lt.Cdr. J.M. Rodgers, RN).
Submarine HMS Olympus: HMS Olympus (Lt.Cdr. H.G. Dymott, RN) arrived at Malta.
Submarine HMS Otus: HMS Otus (Lt. R.M. Favell, RN) conducted exercises off Alexandria.
Submarine HMS Sturgeon: During the night of 20/21 March 1942, HMS Sturgeon (Lt.Cdr. M.R.G. Wingfield, RN), conducted exercises off Plymouth together with MGB's.
Submarine HMS Taku: After a short work-up and trial period in Scottish waters HMS Taku (Lt.Cdr. J.G. Hopkins, RN) departed from Holy Loch bound for Gibraltar. For HMS Taku's daily positions during this passage see the map below.
Submarine HMS H 32: HMS H 32 (Lt. N.J. Coe, DSC, RNR) participated in A/S exercises off Campbeltown.
Submarine HMS H 33: HMS H 33 (Lt. A.W. Langridge, RN) participated in A/S exercises off Campbeltown.
Submarine HMS P 511: HMS P 511 (Lt. M.F.R. Ainslie, DSC, RN) conducted A/S exercises off Campbeltown with HMS La Cordeliere (Lt.Cdr. A.J.G. Barff, RNR) and HMS Bedlington (Skr. J.H.D. Dansie, RNR).
Light cruiser HMS Penelope: In the period between 20-30 March 1942, Axis air attacks on Malta were extremely heavy. Ammunition expenditure by Penelope during the 10-day period amounted to 6.500 rounds of 102 mm (4") and over 75.000 rounds of small calibre. She sustained so much splinter damage to earn the nickname "Pepperpot. Folowing a particularly heavy attack on 26 March, it was decided to send her to the US for repairs. She sailed from Malta on 8 April for New York Navy yard and was under repairs until 1 September. Returned to the Med in early 1943 and was assigned to Force "Q", operating out of Bone, Algeria.
Submarine USSR M-171: M-171 fires a torpedo against ' what is identified as ' a auxiliary minesweeper off the Varangerfjord in position 70°00'N, 30°67'E. The torpedo missed its target.
Submarine HMS L 26: HMS L 26 (Lt. H.D. Verschoyle, DSC, RN) conducted exercises in the Clyde area with a training class of new submariners.
Submarine HNMS O 23: HrMs O 23 (Lt.Cdr. A.M. Valkenburg, RNN) conducted exercises off Colombo with HMS Tulip (Lt. C.W. Leadbetter, RNR), HMS Hoxa (T/Lt. H.P Davies, RNR) and HMS Okapi.
Submarine HNMS O 10: HrMs O 10 (Lt.Cdr. Baron D.T. Mackay, RNN) participated in A/S exercises off Tobermory together with HMS Derby County (Lt. K.B. Hopkins, DSC, RNVR), HMS Kite (Lt.Cdr. W.F.R. Segrave, RN) and HMS Wild Goose (Cdr. D.E.G. Wemyss, RN).
Submarine USS Grenadier (i): USS Grenadier (Lt.Cdr. J.A. Fitzgerald) departed Fremantle for her 6th war patrol. She was ordered to patrol in the Strait of Malacca.
Submarine USS Trigger: USS Trigger (Lt.Cdr. R.S. Benson) torpedoed and damages, with a dud torpedo, the Japanese auxiliary gunboat Choan Maru No.2 (2613 GRT) north-west of the Admiralty Islands in position 03°44'N, 144°12'E.
Submarine USS Sawfish: USS Sawfish (Lt.Cdr. E.T. Sands) sank the Japanese guard boat Shinsei Maru (138 GRT) with gunfire in the North Pacific Ocean in position 32°55'N, 152°11'E.
Submarine USS Scamp: USS Scamp (Lt.Cdr. W.G. Ebert) torpedoed and damaged the Japanese merchant cargo ship Seinan Maru (1450 GRT) off Tomari, Honshu, Japan in position 41°06'N, 141°26'E.
Submarine HMS Sealion: HMS Sealion (Lt. N.J. Coe, DSC, RNR) was docked at Kames Bay.
Submarine HMS Saracen: At 1115 hours, in position 37°57'N, 11°44'E, HMS Saracen (Lt. M.G.R. Lumby, DSC, RN) sighted a convoy of two large merchant ships, course 240°, 15 knots, escorted by four destroyers and 16 aircraft. The submarine closed to 1600 yards and torpedoes were about to be fired on the largest merchant ship when she altered course toward he submarine and foiled the attack. The range was too short for the stern tube to be brought to bear and the attack had to be broken off. The convoy consisted of Marco Foscarini (8073 GRT, 1943) and Nicolò Tommaseo (4573 GRT, 1942) escorted by the torpedo boats Fortunale (escort leader), Antares and Sagittario. The submarine was detected by the sonar from Sagittario and at the same time Marco Foscarini gave a submarine alarm and both ships turned toward the submarine. Sagittario did not immediately drop depth charges as she tried to keep sonar contact but this was lost and she was ordered to join back the convoy. At 1550 hours, in position 38°02'N, 11°47'E, HMS Saracen sighted two Navigatori class destroyers approaching from the west. They were zigzagging at various speeds. They passed at 1500 yards but the attack was abandoned as the speed of the targets could not be determined. These were the destroyers Lanzerotto Malocello and Leone Pancaldo on passage from Tunis to Naples. The submarine was not detected.
Submarine HMS Sea Nymph: HMS Sea Nymph (Lt. G.D.N. Milner, DSC, RN) departed Lerwick for her 3rd war patrol. She was ordered to patrol off the Lofoten Islands. For the daily positions of HMS Sea Nymph during this patrol see the map below. HMS Sea Nymph 3rd war patrol click here for bigger map
Submarine HMS Torbay: HMS Torbay (Lt. R.J. Clutterbuck, RN) departed from Algiers for her 16th war patrol. She was ordered to patrol in the Tyrrhanian Sea to the North of Sicily. For the daily positions of HMS Torbay during this patrol see the map below.
Submarine HMS Truculent: HMS Truculent (Lt. R.L. Alexander, RN) departed from Lerwick for her 2nd war patrol. She was ordered to patrol off the Northern coast of Norway, just North of the Lofoten. For the daily positions of HMS Truculent during this patrol see the map below.
Submarine HMS Unshaken: HMS Unshaken (Lt. J. Whitton, RN) arrived at Malta where she joined the 10th submarine flotilla.
Submarine HMS Universal: HMS Universal (Lt. C. Gordon, RN) conducted torpedo firing trials off Arrochar. Upon completion of these exercises HMS Unrivalled proceeded to Holy Loch.
Submarine HMS H 33: HMS H 33 (Lt. M.H. Jupp, DSC, RN) shifted from Rothesay to Campbeltown. Here Lt. Spender took over command of HMS H 33 from Lt. Jupp.
Submarine USS S-32: USS S-32 (Lt.Cdr. M.G. Schmidt) ended her 4th offensive war patrol at Dutch Harbour.
Submarine USS R-2: USS R-2 (Lt. A.K. Tyree, USN) conducted exercises off Key West.
Submarine USS R-4: USS R-4 (Lt.Cdr. P.W. Garnett, USN) conducted exercises off Key West.
Submarine USS R-10: USS R-10 (Lt.Cdr. E.D`H. Haskins, USN) conducted exercises off Key West.
Submarine USS R-11: USS R-11 (Lt. W.B. Parham, USN) conducted exercises off Key West.
Submarine USS R-13: USS R-13 (Lt.Cdr. A.R. Gallaher, USN) conducted exercises off Key West.
Submarine USSR ShCh-402: While on patrol near the Syltefjord, at 1429 hours, ShCh-402 fires three torpedoes against ' what is identified as ' a merchant of 6000 GRT in a German convoy. All torpedoes fired missed their intended target.
Corvette HMS Vervain: HMS Vervain (Lt. H.P. Crail, RNR) picks up 5 survivors from the British merchant Fort Lamy that was torpedoed and sunk on 8 March 1943 by German U-boat U-527 in the North Atlantic, south-east of Cape Farewell, in position 58°30'N, 31°00'W.
Submarine HNMS O 9: HrMs O 9 (Lt. R.W. van Lynden, RNN) participated in A/S exercises off Lough Foyle together with Mounsey (Lt. F.A.J. Andrew, RN).
Submarine USS Narwhal: USS Narwhal (Cdr. F.D. Latta) ended her 10th war patrol at Fremantle.
Submarine USS Greenling: USS Greenling (Lt.Cdr. J.D. Grant) departed Midway for her 9th war patrol. She was ordered to conduct a photographic reconnaissance of Guam, Tinian, and Saipan.
Submarine USS Angler: USS Angler (Lt.Cdr. R.I. Olsen) evacuates 58 people, including women and children, from the west coast of Panay, Philippines.
Submarine USS Cabrilla: USS Cabrilla (Cdr. W.C. Thompson, Jr., USN) attacked a medium sized transport ship in the Sunda Strait with a total of six torpedoes in two attacks of three torpedoes each. No hits were obtained. (All times are zone H, -8) 1220 hours - Sighted two stick masts and stack of a ship smoking heavily in position 05°55'S, 105°00'E. Changed course to intercept the target of Berak Point, Sumatra. Estimated range was about 20000 yards. 1244 hours - Sound pick up the screw of the target. Course of the target was 050°(T), speed 8 knots. 1251 hours - Range now about 5500 yards. 1306 hours - Sound now estimated the speed of the target as 7 knots. 1313 hours - Range now 3000 yards. 1321 hours - The target was thought to be a medium transport of about 2500 tons. No escort or aircraft were sighted. Range now 2200 yards. Started attack but the target changed course and a new setup had to be made. 1334 hours - In position 05°53'S, 105°04'E fired three torpedoes from 1000 yards. Enemy course was now 080°(T), speed 6.5 knots. All torpedoes missed astern. The first two torpedoes fired were 'heavy smokers'. 1336 hours - Chased submerged at full speed to fire another salvo. 1338 hours - Heard two explosions 15 seconds apart followed by three more. 1340 hours - At 100 feet, still chasing. Heard two more explosions and then two more. Had not seen an escort but sound reported fast screws bearing 180(T). Went deep. 1342 hours - Another explosion. 1344 hours - Stopped to listed on sound on the bearing of the target. Heard nothing. Started to return to periscope depth. 1350 hours - Passed 100 feet. Sound reported pinging. 1354 hours - Heard another explosion. 1356 hours - At periscope depth. The target had changed course to 050°(T), range was 3000 yards. Fired the other three bow torpedoes. All were 'heavy smokers' and no hits were obtained. 1358 hours - The target was smoking heavily. Went to 200 feet to reload. 1401 hours - Heard two explosions 30 seconds apart. Possibly end of run detonations of our torpedoes. 1410 hours - Heard a heavy explosion. 1445 hours - Secured from battle stations.
Submarine USS Picuda: USS Picuda (Lt.Cdr. A. Raborn) torpedoed and sank the Japanese supply ship Hoko Maru (1504 GRT) about 40 nautical miles north of Yap, Caroline Islands in position 10°09'N, 138°10'E.
Submarine HMS Seawolf: HMS Seawolf (Lt. D.W. Mills, DSC, RN) shifted from St.Margarets Bay to Halifax.
Submarine HMS Sportsman: HMS Sportsman (Lt. R. Gatehouse, DSC, RN) departed Port Said for her 10th war patrol (9th in the Mediterranean). She was ordered to patrol in the Aegean. On the 17th it had been decided not to sent HMS Sportsman to the Far East as she was not fitted with an air conditioning plant. For the daily and attack positions of HMS Sportsman during this patrol see the map below. HMS Sportsman 10th war patrol click here for bigger map
Submarine HMS Syrtis: HMS Syrtis (Lt M.H. Jupp, DSC, RN) is ordered to patrol the Bodø area.
Submarine HMS Torbay: HMS Torbay (Lt. R.J. Clutterbuck, RN) departed from Gibraltar bound for the U.K. Part of the passage was made together with ORP Sokol (Lt.Cdr. J. Koziolkowski, DSC, Polish Navy). The submarines were escorted by the armed yacht HMS Evadne (T/Lt. H.N. Taylor, RNR) until 0200/24.
Submarine HMS Tudor: HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Larne.
Submarine HMS Thorough: HMS Thorough (Lt.Cdr. J.G. Hopkins, RN) shifted from Holy Loch to Arrochar where she was to conduct her torpedo discharge trials.
Submarine HMS United: HMS United (Lt. N.R. Wood, RN) conducted A/S exercises off Stornoway together with HMS Persian (Lt.Cdr. A. Ecclestone, RN).
Submarine HMS Varangian: During 20/21 March 1944, HMS Varangian (Lt. S.J. Fovargue, RN), conducted exercises off Fishguard with aircraft. These included night exercises.
Submarine HMS Unswerving: HMS Unswerving (T/Lt. M.D. Tattersall, RNVR) sank the Greek sailing vessel (in German control) PI 223 / Agia Paraskevi (20 GRT) with gunfire north of Crete in position 35°57'N, 24°02'E. (All times are zone -1) 0430 hours - Sighted an armed caique in position 35°57'N, 24°02'E. Opened fire with the gun. Four rounds were fired for two hits before the caique caught fire. 0434 hours - Dived. 0546 hours - The caique exploded and sank. No survivors were seen at all.
Submarine HMS Vigorous: HMS Vigorous (Lt. J.C. Ogle, DSC, RN) conducted attack exercises in the Clyde area during which HMS Sardonyx (A/Lt.Cdr. T.A. Easton, RNVR) and HMS Stygian (Lt. G.S.C. Clarabut, DSO, RN) served as the targets. These included night exercises.
Submarine HMS H 28: HMS H 28 (Lt. J.W. Kelly, RN) shifted from Campbeltown to Rothesay and then from Rothesay to Kames Bay where she was immediately docked.
Submarine HMS H 32: HMS H 32 (Lt. M.D. Hutley, RNR) conducted independent exercises off Campbeltown.
Submarine HMS H 43: HMS H 43 (Lt. I.G. Raikes, DSC, RN) participated in A/S exercises off Tobermory.
Submarine HMS H 44: HMS H 44 (Lt. P.N. Joyce, RN) shifted from Rothesay to Campbeltown.
Submarine HMS H 50: HMS H 50 (T/Lt. A.F. Wicker, RNVR) conducted A/S exercises off Campbeltown with HMS Bedlington (Skr. A.W. Peak, RNR) and HMS Spaniel.
Submarine HMS P 511: HMS P 511 (Lt. E.A. Hobson, DSC, RN) participated in A/S exercises off Campbeltown.
Submarine HMS P 512: HMS P 512 (Lt. J.A. Wingate, DSC, RN) participated in A/S exercises off Bermuda.
Submarine USS R-2: USS R-2 (Lt. A.K. Tyree, USN) conducted exercises off Key West.
Submarine USS R-10: USS R-10 (Lt.Cdr. G.F. Sharp, USN) conducted exercises off Key West.
Submarine USS R-11: USS R-11 (Lt.Cdr. W.B. Parham, USN) conducted exercises off Key West.
Submarine USS R-13: USS R-13 (Lt.Cdr. D.L. Mehlop, USN) conducted exercises off Key West.
Submarine USS R-20: USS R-20 (Lt.Cdr. E.T. Shepard, USN or Lt.Cdr. J.B. Dudley, USN) conducted exercises off Key West.
Submarine ORP Sokol: ORP Sokol (Kpt.mar J. Kolziolkowski) departed Gibraltar for Plymouth.
Patrol craft USS PCS-1390: PCS 1390 assigned to Guantanamo Bay, Cuba.
Destroyer USS Mannert L. Abele: Mannert L. Abele departed from Ulithi to participate in the Okinawa landings.
Submarine USS Plunger: USS Plunger arrived at New London, Connecticut.
Submarine USS Bonefish: With her overhaul completed USS Bonefish (Cdr. L.L. Edge) departed from Pearl Harbor for her 7th war patrol. She was ordered to patrol in the East China Sea.
Submarine USS Gabilan: USS Gabilan (Lt.Cdr. W.D. Parham) departed from Fremantle for her 5th war patrol. She was ordered to patrol in the Java Sea.
Submarine USS Bowfin: USS Bowfin (Cdr. A.K. Tyree, USN) departed her patrol area for Guam.
Submarine USS Cabrilla: USS Cabrilla (Lt.Cdr. H.C. Lauerman, USN) departed Pearl Harbour for her 7th war patrol. She was ordered to patrol off Hokkaido and the Kuril Islands. For daily and attack positions (though incomplete) of USS Cabrilla during this patrol see the map below.
Submarine USS Devilfish: USS Devilfish (Lt.Cdr. S.S. Mann, Jr.) is damaged by a Japanese Kamikaze aircraft off the Volcano Islands in position 25°36'N, 137°30'E and is forced to terminate her patrol.
Submarine USS Perch (ii): USS Perch (ii) (Lt.Cdr. B.C. Hills) lands men on east coast of Borneo.
Submarine USS Blenny: USS Blenny (Cdr. W.H. Hazzard, USN) claims three hits on two 'engines aft, bridge amidships ships' during a torpedo attack on a Japanese convoy off the coast of Indo-China in position 11°18'N, 108°56'E. (All times are zone H, -8) 1504 hours - In position 11°22'N, 109°00'E sighted four engines aft ships, one frigate and four patrol vessels inside Padaran Bay bearing 273°(T), range about 16000 yards. 1506 hours - Changed course to close the convoy. 1525 hours - Battle stations torpedo. 1600 hours - The frigate passed overhead while pinging but he was not in contact. 1613 hours - In position 11°18'N, 108°56'E fired four stern torpedoes at a green camouflaged engines aft ship which was overlapping with a grey painted engines aft ship. Range was about 1900 yards. Three hits are claimed, two on the green ship, one on the grey ship. 1615 hours - Went ahead full and to the left to get off the torpedo tracks. 1618 hours - Depth charging started. In all a total of 21 were dropped but none were really close. 1733 hours - Returned to periscope depth. Three of the patrol vessels were in sight, the closest one was around 6000 yards away. 1745 hours - Secured from battle stations. 1951 hours - Surfaced.
Submarine USS Blower: USS Blower (Cdr. J.H. Campbell, USN) ended her 1st war patrol at Fremantle, Australia. She was escorted in by HMAS ML 812 (Lt. D.G. Phillips, RANR). At Fremantle she was refitted by a relief crew of SubDiv 182 and USS Euryale.
Submarine USS Cabezon: USS Cabezon (Cdr. G.W. Lautrup, USN) arrived at Coco Solo, Panama Canal Zone.
Submarine USS Capitaine: USS Capitaine (Lt.Cdr. E.S. Friedrick, USN) conducted exercises in Panama Bay together with USS Paul Jones (Lt.Cdr. H.M. Payne, USNR), USS Bulmer (Lt. T.C. Farrell, USNR), USS MacLeish (Lt. D.S. Cramer, USNR), USS PC-1221 and USS USS SC-980.
Submarine USS Hardhead: USS Hardhead (Cdr. F.A. Greenup) departed from Fremantle for her 4th war patrol. She was ordered to patrol in the Gulf of Siam.
Submarine USS Kete: USS Kete (Lt.Cdr. Edward Ackerman) sent a special weather report. This is the last ever heard from her.
Submarine USS Lagarto: USS Lagarto (Cdr. F.D. Latta) ended her 1st war patrol at Subic Bay, Philippines.
Submarine USS Thornback: With her trials and initial training completed USS Thornback (Cdr. E.P. Abrahamson, USN) departed from New London bound for the Panama Canal Zone for further training.
Submarine HMS Storm: HMS Storm (T/A/Lt.Cdr. E.P. Young, DSO, DSC, RNVR) was undocked.
Submarine HMS Scythian: HMS Scythian (T/Lt C.P. Thode, RNZNVR) ended her 2nd war patrol (1st in the Far East) at Trincomalee.
Submarine HMS Stygian: HMS Stygian (Lt. G.S.C. Clarabut, DSO, RN) takes on board fuel and provisions at Onslow and then proceeded for her patrol area.
Submarine HMS Tribune: HMS Tribune (Lt. A.D. Piper, DSO, DSC, RD, RNR) conducted exercises off Blyth with a training class of new submariners.
Submarine HMS Tactician: HMS Tactician (Lt.Cdr. L.N.A. Jewell, DSC, MBE, RN) conducted exercises in the Clyde area.
Submarine HMS Trespasser: HMS Trespasser (Lt. L.E. Herrick, DSC, RN) participated in A/S exercises off Campbeltown.
Submarine HMS Tantivy: HMS Tantivy (Lt. P.S. May, RN) transits the Suez Canal and arrived at Port Said.
Submarine HMS Totem: HMS Totem (A/Lt.Cdr. M.B. St. John, DSC, RN) conducted exercises in the Clyde area.
Submarine HMS Tapir: HMS Tapir (Lt. J.C.Y. Roxbourgh, DSO, DSC, RN) conducted exercises in the Clyde area and also performed a deep dive trial. Night exercises during the night of 20/21 March then followed.
Submarine HMS Upright: HMS Upright (Lt. J.A.L. Wilkinson, RN) conducted A/S exercises off Bermuda with HMCS Wallaceburg (T/A/Lt.Cdr. F.E. Burrows, RCNVR).
Submarine HMS Umbra: HMS Umbra (Lt. W.D.S. Scott, RN) conducted exercises off Portsmouth.
Submarine HMS Unruly: HMS Unruly (T/Lt. D.J. Palmer, RNVR) conducted A/S exercises off Tobermory with aircraft.
Submarine HMS Ultor: HMS Ultor (Lt. J.P. Harvey, RN) participated in A/S exercises off Campbeltown.
Submarine HMS Unsparing: HMS Unsparing (Lt. J.M.C. Fenton, DSC, RN) participated in A/S exercises off Tobermory.
Destroyer HMS Orwell: HMS Orwell (Lt.Cdr. J.R. Gower, DSC, RN) picks up 65 survivors (of which one died aboard the destroyer) from the American merchant Horace Bushnell that was torpedoed and damaged by German U-boat U-995 about 25 nautical miles east of North Kilden Light in position 69°23'N, 35°17'E.
Submarine USS R-10: USS R-10 (Lt. R.D. McWenthy, USN) conducted exercises off Key West.
Submarine USS R-14: USS R-14 (Lt.Cdr. J.H. Cunningham, Jr., USNR) conducted exercises off Key West.
Submarine USS R-20: USS R-20 (Lt.Cdr. J.B. Dudley, USN) conducted exercises off Key West.
Submarine HMS L 23: HMS L 23 (Lt. R.T. Sallis, DSC, RN) participated in A/S exercises off Digby.