UIT-24 - 2nd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Singapore	25 May 1944	Tama	8 June 1944	15
Kobe	5 September 1944	Singapore	19 September 1944	15
Singapore	28 September 1944	Penang	30 September 1944	3
Penang	17 October 1944	Singapore	19 October 1944	3
				36

 

Click the icon to download a KMZ file displaying the U-boat track, significant events and locations for this patrol.  You must have Google Earth loaded on your computer to view this file.  Download Google Earth here

 

Ships Hit

None

Note:  The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website.  The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.

---

	- 1 -
	K  R  I  E  G  S  T  A  G  E  B  U  C  H =========================== Unterseeboot "UIT 24"   Transfer cruise         Singapore - Japan Transport cruise       Japan   - Singapore Transport cruise       Singapore - Penang and back   Kommandant  :  Oberleutnant z. See    P  a  h  l  s.   Singapore Put to sea  : 25.5.44 Tama Arrived      :   8.6.44       Kobe Put to sea  :   5.9.44 Singapore Arrived      : 19.9.44       Singapore Put to sea  : 28.9.44 Penang Arrived      : 30.9.44       Penang Put to sea  : 17.10.44 Singapore Arrived      : 19.10.44
				© U-boat Archive 2023 - all rights reserved

Click the flag to view the above page from the original German KTB

	- 2 -
	Kriegstagebuch for the Period from 8.4. - 19.10.44   ===================================     8.4. -  Singapore Since the return of the boat from the first operation negotiations were underway for a repair harbor. 24.5.44     16.4. As requested the Command was granted 1 Iron Cross I and 3 Iron Cross II.     23.4. Award of the "Iron Crosses":           the Iron Cross I for Ob.Masch.Mt.   R  e  h  s  e           the Iron Cross II for Ob.Masch.Mt.    B  r  e  n  n  e  r                                    and  Matr.Ob.Gefr.    S  c  h  o  e  t  z.     26.4. According to the decision of the B.d.U. "UIT 24" remains a "Merkator-Boat".     1.5. The Singapore Shipyard wants the boat on 12 May for two days for a preliminary dry-docking.  In order to bring the boat to dock depth, the opium and rubber cargo in the bow compartment was unloaded.     2.5. The Singapore Shipyard gave the new shipyard completion date:  25 July.  Dry-docking, then 4 months repair time.  Since these dates are not acceptable, C.i.M. repair in Surabaya.    [Surabaya Shipyard East Java, Indonesia]     13.5. Naval Attaché Tokyo reports that the Japanese Navy wants to repair the boat in Kure.     15.5. - To make the boat ready to dive again, 34 tons of Tin and Wolfram were loaded into the bow room. 18.5.     19.5. Provisions and fuel loading.     20.05. Trim test in the West Roadstead and test transmissions.     23.5. New trim test in the West Roadstead.     24.05. The Japanese Naval Attaché arrived with transit orders to Japan.

	- 3 -
		25.05.44	Singapore
		03.45		Farewell to the boat by Korv.Kpt. Erhardt.
		04.01		Boat cast off for the transit to Japan.  Japanese Liaison Officer Oblt.z.S. Isumi on board.
		04.05 - 06.57		Boat proceeded in the wake of the escort vessel via the East Roadstead to the Singapore Strait to Buoy 14.
		06.57		Escort ended.
		07.50 - 08.02		Test dive in the Singapore Strait.
			NE 1, Sea 0, 0/10, Vis. good, 1017 mb
		08.30		Passed Japanese watch vessel to port.
		08.50		Course 55°, transit speed 10 knots.
		09.30		"Horsburgh" Lighthouse abeam to starboard.
		10.15		Course 28°.
		10.35		Two Japanese remote reconnaissance aircraft passed to port.  Recognition Signals exchanged.
		11.15		Japanese seaplane passed to starboard, Exchanged Recognition Signals.
		12.00	LG 7099 [7986]	Day's run:
				Surfaced          78 nm
				Submerged         1 nm
				79 nm
		18.00	LG 8071 [7931]
		20.00	LG 8045 [8451]
		26.05.44	Gulf of Siam
		00.00	LG 8019 [8191]
			ESE 2, in squalls up to 4, Sea 2, overcast, Vis. good, 1018 mb
		02.00		Course 37°.
		04.00	LG 8021 [8212]
		07.03 - 07.40		Test dive.

	Sun and Moon Data 25.05.44
	Sun and Moon Data 26.05.44

	- 4 -
		continued
		26.05.44	Gulf of Siam
		08.00	LG 5076 [5852]
		12.00	LG 5059 [5593]	Day's run:
				Surfaced         231 nm
				Submerged         1 nm
				232 nm  Total 311 nm
		16.00	LG 5061 [5619
		16.28		Incoming Radio Message:  9/26/5/0835:
				Pahls (2):
			[Tama = Mitsui Tamano Shipyard, Japan]	K.K. Bloomfield with interpreter and Technical Advisor is ordered to receive boats to "Tama". Brings further details for visit, accommodations. (see 1333 gkdos) etc.
		16.43		Incoming Radio Message:  8/26/5/0036:
				Pahls (1):
				Penang transmits experimentally in the first 10 minutes each hour tuning signals . . . etc.
		20.00	LG 5036 [5359]
		21.20	LG 6014 [6141]	Shadow in sight in 140°T, range 1.5 nm.  Probably a U-boat.  Ran with off on northeasterly courses and when out of sight again on old course.
		27.05.44	South China Sea
		00.00	LG 6011 [6111]
			N 1-2, Sea 0-1, 0/10, Vis. very good, 1016 mb
		01.00		Began zigzag course around general course 36°.
		04.00	LG 3074 [3754]
		06.20	LG 3073 [3736]	U-boat in 90°T.  Range 7-8 nm.  Ran off on NW course.
		08.00	LG 3048 [3489]
		08.55		A sailing vessel in sight in 75°T.
		09.00		Came to general course again.
		09.20		Sailing vessel out of sight.
		11.20		Outgoing Radio Message:  9/27/5/0920:
				From Pahls:
		[T.Z. = UTC +9 = standard time in Japan and much of the occupied territories during WWII]		On 27 May 04.20 hours T.Z. U-boat sighting 6°24'N 107°37'E
				13.20 hours  7°31'N 108°27'E
				The Radio Message was not acknowledged.

	Sun and Moon Data 26.05.44
	Sun and Moon Data 27.05.44

	- 5 -
		continued
		27.05.44	South China Sea
		12.00	LG 3046 [3463]	Day's run:  Surfaced 256 nm Total 567 nm
		13.15		Ended zigzag course.
		16.00	LG 3028 [3282]
		17.22		Incoming Radio Message:  17/27/5/1216:
				Pahls (3):
				1.)  Photographs in transit and in Japan are forbidden.
				2.)  At intake point G several shipyard engineers from "Tama" are expected to board and negotiate repair details on the way.
		20.00	LG 3031 [3314]
		28.05.44	South China Sea
		00.00	MX 9098 [9983]
			NW 2-3, Sea 2, 3/10, Vis. very good, 1012 mb
		02.50 - 03.10		Test dive.
		04.00	MX 7047 [7477]
		04.00		Began zigzag course around general course 35°.
		08.00	MK 7042 [7424]
		10.35		Zigzag course ended
		12.00	MK 7019 [7193]	Day's run:
				Surfaced         254 nm
				Submerged         1 nm
				255 nm  Total 822 nm
		16.00	MX 7021 [7213]
		20.00	MK 4085 [4859]
		23.50		Began zigzag course around general course 28°.
		29.05.44	South China Sea
		00.00	MX 4059 [4596]
			NW 2-3, Sea 2, 3/10, Vis. very good, 1012 mb
		04.00	MX 4061 [4619]
		08.00	MX 4038 [4381]

	Sun and Moon Data 27.05.44
	Sun and Moon Data 28.05.44
	Sun and Moon Data 29.05.44

	- 6 -
		continued
		29.05.44	South China Sea
		12.00	MX 4033 [4333]	Day's run:  Surfaced 264 nm  Total 1086 nm
		13.00		Ended zigzag course.
		16.00	MX 2074 [2746]
		20.00	MX 2049 [2497]
		30.05.44	South China Sea
		00.00	MX 2051 [2542]
			SSE 2, Sea 1-2, light SW-Swell, 3/10, 1012 mb, Vis. very good
		02.00		Began zigzag course around general course.
		02.30		General course 45°.
		04.00	MX 2028 [2286]
		08.00	MX 2031 [2317]
		09.00 - 09.15		Boat lay stopped for urgent over deck work.
		09.20 - 09.45		Test dive.
		12.00	MN 8098 [9881]	Day's run:
		[position in brackets is in error]		Surfaced         258 nm
				Submerged         1 nm
				259 nm  Total 1345 nm
		14.00		Ended zigzag course.
		16.00	MN 8093 [9715]
		20.00	MN 9046 [9483]
		23.30		Began zigzag course around general course.
		31.05.44	South China Sea
		00.00	MN 9051 [9516]
			SSE 2, Sea 1-2, 4/10, Vis. good, 1012 mb
		04.00	MN 9026 [9264]
		08.00	MN 9032 [9322]
		09.00		General course 57°.

	Sun and Moon Data 29.05.44
	Sun and Moon Data 30.05.44
	Sun and Moon Data 31.05.44

	- 7 -
		continued
		31.05.44	South China Sea
		12.00	QC 4077 [4747]	Day's run:  Surfaced 278 nm  Total 1615 nm
		14.00	QC 4074 [4727]	General course 90°.
		16.00	QC 4073 [4817]
		16.10		Incoming Radio Message: 54/31/5/1115:
				Phals (5):
				According to plan Japanese convoy will pass on 2 June at 07.00 hours T.Z. on opposite course.
		19.35		Ended zigzag course.
		20.00	QC 4082 [4829]
		21.23	QC 4083 [4838]	U-boat lying stopped (large type) in sight in 60°T.  Range 2000 meters.  Ran off on southwesterly course.  When turning away enemy U-boat got underway and also showed his stern.
		23.00		Began zigzag course around general course 90°.
		01.06.44	South of Formosa
		00.00	QC 4093 [4929]
		00.04		Incoming Radio Message:  53/31/5/1101:
				Phals (4)
				Repeat of Phals Radio Messages 1-3.
			SSW 2, Sea 1, 2/10, 1011 mb, Vis. very good
		02.45		Bataan Islands in sight.
		04.00	QC 5072 [5727]
		07.00		Mavudis Island abeam to starboard.  Range 1000 meters.
		08.00	QC 5081 [5819]
		12.00	QC 5091 [5914]	Day's run:  Surfaced 282 nm  Total 1897 nm
		12.30		Bataan Islands out of sight.
		14.00		Ended zigzag course.
		16.00	QC 5093 [5935]
		20.00	QC 6072 [6726]
		23.30	QC 6804	Course 68°.

	Sun and Moon Data 31.05.44
	Sun and Moon Data 01.06.44

	- 8 -
		02.06.44	Southeast of Formosa
		00.00	QC 6081 [6814]
			SE 2, Sea 1, 1013 mb, 3/10, Vis. very good
		01.30		Began zigzag course around general course.
		01.43 - 02.22		Test dive.
		04.00	QC 6067 [6675]
		08.00	QC 6066 [6668]
		12.00	QD 4043 [4426]	Surfaced         260 nm
				Submerged         1 nm
				261 nm  Total 2158 nm
		14.00		Ended zigzag course.
		16.00	QD 4027 [4279]
		20.00	QD 4037 [4371]
		03.06.44	Pacific Ocean
		00.00	QD 4033 [4361]
			NE 2, Sea 0-1, 4/10, 1015 mb, light ESE-Swell, Vis. very good
		01.00		Began zigzag course.
		04.00	QD 5012 [5121]
		07.00		General course 55°.
		08.00	QD 2084 [2845]
		12.00	QD 2091 [2911]	Day's run:  Surfaced 269 nm  Total 2427 nm
		12.40		Incoming Radio Message:  85/3/6/0956:
				Phals (6):
				No. 5 "Pass convoy on opposite course 2 June" was last information on it.
		14.00		Ended zigzag course.
		16.00	QD 2069 [2691]
		20.00	QD 3042 [3431]

	Sun and Moon Data 02.06.44
	Sun and Moon Data 03.06.44

	- 9 -
		04.06.44	Pacific Ocean
		00.00	QD 3019 [3196]
			NE 2-3, Sea 1-2, 4/10, 1015 mb, light W-Swell, Vis. good
		01.00		Began zigzag course around general course 0°.
		02.05 - 02.35		Test dive.
		04.00	QD 3021 [3217]
		08.00	OP 9088 [9858]
		08.55		Outgoing Radio Message:  4/4/6/0210:
				From Phals
				Arrival intake Point "C" 6 June 11.00 hours.
		09.55		Incoming Radio Message:  95/4/6/0725:
				Phals (7):
				Acknowledgment for sent Radio Message.
		12.00		Surfaced         260 nm
				Submerged         1 nm
				261 nm  Total 2688 nm
		13.30		Ended zigzag course.
		16.00	OP 9055 [9552]
		20.00	OP 9025 [9255]
		05.06.44	South of Sikoku
		00.00	OP 6088 [6885]
			N 3-4, Sea 3, overcast dew, 1008 mb, medium W-Swell, Vis. medium
		01.00		Began zigzag course around general course.
		04.00	OP 6082 [6825]
		08.00	OP 6055 [6552]
		12.00	OP 6028 [6282]	Day's run:  Surfaced 260 nm  Total 2948 nm
		13.14		Incoming Radio Message:  100/5/6/0015 and 1/5/6/0102:
				Phals 8 and 9.
				Xam. Radio Messages.  [Xam. not understood]
		14.00		Ended zigzag course.
		16.00	OP 3088 [3885]

	Sun and Moon Data 04.06.44
	Sun and Moon Data 05.06.44

	- 10 -
		continued
		05.06.44	South of Sikoku
		20.00	OP 3082 [3822]
		22.00		General course 310°.
		23.50		Cape Ashizuri Lighthouse in sight in 5°T.  Boat navigated by land bearings to the escort intake point.
		06.06.44	Bungo Channel
		00.00	[3557]
			NNW 4, Sea 3, 4/10, 1007 mb, Vis. medium
		03.20		Escort vessel in sight.
		03.55		Taken in convoy by mine search boat similar to our type No. 17.  Boat was led through the mine barrier of the Bungo Channel.
		06.06		Released from escort.
		06.20		Japanese Pilot and two Japanese Engineers of the Tama Shipyard on board.  Boat head for the Agenosho Roadstead.
		07.00		Outgoing Radio Message:  8/6/6/1400:
				From Pahls:
				Passed the "Bungo Channel".  Pilot on board.  Anchor in the evening of 6 June  "Agenosho Roadstead".  Pilot has orders to arrive at the "Tama Dock"on 8 June 08.00 hours.  Have orders from Singapore to go to "Kobe" first.  Must unload part of the cargo before beginning at the shipyard.  Request "Kobe" first.
				Radio Message was not acknowledged.
		07.05		U-boat "SATSUKI" ex "U-511" surfaced to starboard.  Exchanged greetings.
		08.00	OB 97	A new Japanese M-Boot type "FUSETSUTEI" passed ahead.
		12.00		Day's run:  Surfaced 278 nm  Total 3226 nm
		12.05		Boat anchored at the Agenosho Roadstead.
		07.06.44	Japanese Inland Sea
		01.02		Weighed anchor.  Transit to Tama through the Inland Sea.

	Sun and Moon Data 05.06.44
	Sun and Moon Data 06.06.44
	Sun and Moon Data 07.06.44

	- 11 -
		continued
		07.06.44
		01.20		Passed Japanese U-boat type RO 51 to port on opposite course.
		09.22		Boat anchored off Hibi.
		08.06.44	Japanese Inland Sea
		00.15		Weighed anchor.  Boat headed for Tama.
		01.05		Made fast at the Mitsui Shipyard in Tama.
				Greeting by the representative of the Station Chef in Kure Kapt. z.See Yokoyama.
				Reported to the head of the Branch Office Korv.Kpt. (Ing.) Bloomfield.
				Day's run:  Surfaced 93 nm
				Total distance covered 3319 nm.

	Sun and Moon Data 07.06.44
	Sun and Moon Data 08.06.44

	- 12 -
		09.06.44	Tama
				Began shipyard work.  Provisional shipyard completion date 20 August.  Remaining job are:  renewal of the entire over deck, overhaul of the diesels, replacement of the lost diving plane.
		11.06.44 -		Boat dry-docked for inspection of the boat's hull.
		15.06.44
		22.06.44 -		Boat dry-docked.
		22.07.44
		27.07.44		When pressurizing the negative buoyancy tanks a stop bolt cracked in the operating linkage.
		07.08.44 -		Boat dry-docked again to repair the negative buoyancy tank.
		10.08.44
		14.08.44		Pier-side trial.
		15.08.44
		01.00		Cast off for first sea trial.
		08.37		Made fast in the Tama Shipyard.
		17.08.44
		01.00		Cast off for second sea trial.
		02.30 - 03.50		AK cruise (results 17.2 knots).
		04.20 - 05.43		Trim test.
		09.22		Made fast in the Tama Shipyard.
		20.08.44
		08.00		The boat is ceremonially handed over from the Shipyard to the Command, ready for action.
		09.00		Cast off.  Cruise to Anchorage off Simotui near the crew quarters.
		09.55		Boat anchored.  15 meters water, 50 meters chain.
		21.08.44
		01.04		Weighed anchor for fuel measurement for economical fuel settings.
		05.17		Anchored off Simotui.
		22.08.44		Took over the boat.

	- 13 -
		23.08.44	Inland Sea
		01.20		Weighed anchor.  Cruised to the Tama Shipyard.
		02.40		Anchored off the Tama Shipyard.
				Farewell by the Japanese Navy and Shipyard.
				Check out with Kapt.z.See Yokoyama, Adj. of the Kure Station Chef.
		03.15		Weighed anchor.  Cruise to Kobe.
		08.20		Entered Kobe harbor.
		09.05		Made fast Kobe Berth "F".
				Day's run:  Surfaced 75 nm
		24.08.44 -	Kobe	Unloading and loading of the boat.
		02.09.44
		01.09.44		Loaded lubricating oil.
		03.09.44
		01.09		Cast off to shift alongside "HAVELLAND".
		02.05		Made fast alongside "HAVELLAND.
				Began loading fuel oil.
		05.09.44
		01.55		Cast off for trim test in Izumi Bay.
		02.46 - 03.46		Trim test.
		05.15 - 05.30		Crash dive training.
		07.49		Made fast Lobe Berth "B".
		16.18		Cast off for transit to Singapore.  Japanese Pilot and Liaison Officer Obltn. z. See Ogawa on board.
			S 2-3, Sea 1-2, cloudy rain, 1014 mb, Vis. very good
		16.50		Past Kobe East Entrance.
				Boat steered by the instructions of the pilot through the Kii Channel
		20.25		From Ichie Saki Lighthouse the boat steered off the coast at a distance of 1 nm.
		23.30		Passed a Japanese U-boat to starboard.

Sun and Moon Data 05.09.44

	- 14 -
		06.09.44
			S 2-3, Sea 1-2, overcast rain, 1014 mb, Vis. very good
		00.50		Boat anchored off Kusimoto
				Kashino Saki in 298°T, distance 2.5 nm 25 meters water, 100 meters chain.
		01.30		Disembarked the pilot.
		03.15		A Japanese convoy (8 ships and 1 destroyer) passed northeast of the anchorage, ran in to Kobe.
		12.00	OQ 1024 [1241]	Day's run:  Surfaced 108 nm
		15.15		Weighed anchor.
		15.50		Course 180°.  Both diesels GF.
		16.00	OQ 1027 [1271]
		19.00		Course 225°.  Both diesels HF, transit speed 11.5 knots.
		20.00	OQ 1046 [1462]
		22.15		Began zigzag course.
		07.09.44	South of Kii.
		00.00	OQ 1072 [1487]
			SSW 3-4, Sea 3, light SE-Swell, overcast rain, 1012 mb, Vis. medium to bad
		01.32 - 02.38		Test dive.
		04.00	OQ 1077 [1772]
		06.00		General course 207°.
		08.00	OP 6033 [6338]
		12.00	OP 6038 [6383]	Ended zigzag course.
				Surfaced         215 nm
				Submerged         2 nm
				217 nm  Total 325 nm

	Sun and Moon Data 06.09.44
	Sun and Moon Data 07.09.44

	- 15 -
		continued
		07.09.44	South of Kii
		16.00	OP 6061 [6616]
		20.00	OP 6059 [6595]
		23.00		Began zigzag course around general course.
		06.09.44	Pacific Ocean
		00.00	OP 6086 [6865]
			SW 3, Sea 2, confused Swell, overcast rain, 1013 mb, Vis. medium
		02.00		General course 180°.
		03.35		Incoming Radio Message:  91/8/9/0332:
				Phals (10):
				7 September 23.00 hours T.Z. enemy boat was in 2°20'N, 109°55'E
		04.00	OP 9022 [9223]
		07.00 - 07.58		Test dive.
		08.00	OP 9025 [9259]
		08.45		Japanese reconnaissance aircraft in sight.  Recognition Signals exchanged.
		12.00	OP 9028 [0289]	Ended zigzag course.
				Day's run      Surface        2385 nm
				Submerged        2 nm
				2407 nm  Total 565 nm
		16.00	OP 9058 [9582]
		20.00	OP 9085 [9855]
		23.00		Began zigzag course around general course.
		09.09.44	Pacific Ocean
			QD 3024 [3241]
			SE 1, Sea 1, 5/10, light E-Swell, 1016 mb, Vis. good

	Sun and Moon Data 07.09.44
	Sun and Moon Data 08.09.44
	Sun and Moon Data 09.09.44

	- 16 -
		continued
		09.09.44	Pacific Ocean
		01.35		Aircraft in sight briefly in 78°T, long range.
		04.00	QD 3054 [3541]
		05.00		General course 240°.
		08.00	QD 3047 [3471]
		08.32		Incoming Radio Message:  95/9/9/0341:
				Phals (11):
				Japanese Navy points out holding exactly to prescribed route.
		10.50		Ended zigzag course.
		10.32 - 11.17		Test dive.
		12.00	QD 2092 [2926]	Day's run:     Surfaced         265 nm
				Submerged         2 nm
				267 nm  Total 832 nm
		16.00	QD 2092 [2926]
		20.00	QD 2079 [2795]
		23.00		Began zigzag course around general course.
		10.09.44	East of Formosa
		00.00	QD 5011 [5114]
			E 1-2, Sea 1-2, light E-Swell, 3/10, 1016 mb, Vis. very good
		04.00	QD 4034 [4343]
		05.35		Japanese reconnaissance aircraft in sight.  Recognition Signals exchanged.
		08.00	QD 4029 [4286]
		12.00	DQ 4051 [4515]	Day's run:  Surfaced 266 nm  Total 1098 nm
		12.00		Ended zigzag course.
		16.00	QD 4044 [4443]
		20.00	QD 6066 [6598]
		23.00		Began zigzag course around general course.

	Sun and Moon Data 09.09.44
	Sun and Moon Data 10.09.44

	- 17 -
		11.09.44	South of Formosa
		00.00	QC 6059 [6598]
			E 1, Sea 0-1, 4/10, 1012 mb, Vis. very good
		04.00	QC 6073 [6732]
		06.30 - 06.45		Test dive.
		08.00	QC 6074 [6748]
		09.20		General course 270°.
		12.00	QC 5098 [5981]	Day's run:     Surfaced         263 nm
				Submerged         1 nm
				264 nm  Total 1362 nm
		12.00		Ended zigzag course.
		15.15		Batan Island in sight in 256°T.
		16.00	QC 5088 [5882]
		18.30		Batan Island abeam to port.
		18.37		Crash dive for an indistinct shadow under land in 100°T.  According to submarine sighting reports decoded by the Japanese Liaison Officer, enemy submarines are primarily in and near and in the passages through the Philippines.
		19.25		Surfaced.
		20.00	QC 5079 [5767]
		20.50		Batan Island out of sight.
		22.05	QC 5077 [5757]	In bright moonshine in 215°T range 3 nm 2 perfectly recognized enemy U-boats, apparently supplying.  Turned away to the north and after getting out of sight came to the old course again.
		23.00		Began zigzag course around general course.
		12.09.44	South China Sea
		00.00	QC 4098 [4959]
			E 1-2, Sea 1, 3/10, 1011 mb, Vis. very good

	Sun and Moon Data 11.09.44
	Sun and Moon Data 12.09.44

	- 18 -
		continued
		12.09.44	South China Sea
		00.10		Aircraft in sight briefly in 315°T.  Long range.
		00.15		Masthead in sight in 25°T.
		00.35		Masthead out of sight in 45°T.
		01.55		Aircraft in sight briefly in 320°T.  Long range.
		02.45		3 aircraft in sight in 40°T, medium range.
		02.55		Aircraft out of sight in 150°T.
		04.00	QC 4089 [4869]
		04.10		Aircraft in sight in 280°T, medium range.
		04.25		Aircraft out of sight in 10°T.
		08.00	QC 4087 [4849]
		09.15 - 12.35		Outgoing Radio Message:  22/12/9/0705:
				From Pahls:
				2 U-boats on 12 September 05.05 hours T.Z. 20°32'N   121°25'E apparently supplying.
				Radio Message was not acknowledged.
		11.45 - 12.10		Aircraft in 318°T.  Long range.
				Aircraft flies in circles, apparently over a convoy.
		12.00	QC 4076 [4737]	Ended zigzag course.
				Day's run:     Surfaced         283 nm
				Submerged         2 nm
				285 nm  Total 1647 nm
		16.00	MN 6096 [6939]
		20.00	MN 6091 [6918]
		22.00		Began zigzag course around general course.
		13.09.44	East of Hainan
		00.00	MN 6082 [6827]
			SSE 1, Sea 0-1, 4/10, 1011 mb, Vis. very good
		01.25 - 01.35		Aircraft in sight in 120°T.  Medium range.

	Sun and Moon Data 12.09.44
	Sun and Moon Data 13.09.44

	- 19 -
		continued
		13.09.44	East of Hainan
		02.00		Course 180°.
		04.00	MN 8079 [6792]
		06.00		Course 207°.
		06.31 - 06.52		Test dive.
		08.00	MN 9011 [9113]
		12.00	MN 8036 [8365]	Ended zigzag course.
				Day's run:     Surfaced         260 nm
				Submerged         1 nm
				261 nm  Total 1908 nm
		15.00		Course 200°.
		16.00	MN 8062 [8623]
		20.00	MN 8064 [8684]
		22.00		Began zigzag course around general course.
		14.09.44	South China Sea
		00.00	MN 8083 [8863]
			SE 1, Sea 0-1, overcast dew, 1013 mb, Vis. changing
		01.30		Course 216°.
		04.00	MN 8083 [2223]
		08.00	MX 2024 [2246]
		08.30 - 09.05		Test dive.
		12.00	MX 2043 [2435]	Day's run:     Surfaced         254 nm
				Submerged         1 nm
				255 nm  Total 2163 nm
		13.00		Ended zigzag course.
		16.00	MX 2047 [2485]
		19.30		Course 207°.
		20.00	MX 2047 [2746]

	Sun and Moon Data 13.09.44
	Sun and Moon Data 14.09.44

	- 20 -
		15.09.44	South China Sea
		00.00	MX 4033 [4337]	Began zigzag course around general course.
			NE 1-2, Sea 1, overcast dew, 1018 mb, Vis. good
		03.00 - 04.00		Test dive.
		04.20		Aircraft in sight briefly in 310°T.  Medium range.
		04.00	MX 4037 [4376]
		05.42		Japanese reconnaissance circled several times.  Recognition Signals exchanged.
		08.00	MX 4964 [4566]
		12.00	MX 4058 [4821]	Day's run:     Surfaced         241 nm
				Submerged         2 nm
				243 nm  Total 2406 nm
		13.00		Ended zigzag course.
		13.10		Incoming Radio Message:  40/12/9/2358:
				Pahls:
				Navigation Office notifies that Junker of the Japanese U-boat "Ro 115" and Pahls will pass in the morning of 16 September.
		16.00	MX 4087 [4847]
		20.00	MX 7012 [7137]
		16.09.44	South China Sea
		00.00	MX 7017 [7173]	Began zigzag course around general course.
			NW 1-2, in squalls 4-5, Sea 1-2, overcast dew, 1010 mb, Vis. changing
		02.43		Aircraft in sight briefly out of the clouds in 220°T.  Close range.
		04.00	MW 9066 [9663]
		08.00	MW 9092 [9923]
		09.30		Course 220°.

	Sun and Moon Data 15.09.44
	Sun and Moon Data 16.09.44

	- 21 -
		continued
		16.09.44	South China Sea
		12.00	MW 9097 [9971]	Day's run:  Surfaced 245 nm  Total 2651 nm
		13.00		Ended zigzag course.
		16.00	LG 3023 [3238]
		18.24		Incoming Radio Message:  55/16/9/1122:
				Pahls (12):
				Japanese Admiral Staff notifies increased occurrence of enemy U-boats in the South China Sea.
				(B 23 Nr. 5 gkdos)
		20.00	LG 3028 [3276]
		17.09.44	South China Sea
		00.00	LG 3046 [3466]	Began zigzag course around general course.
			WSW 1-2, Sea 1, overcast dew, 1012 mb, Vis. medium
		02.00  - 02.18		Test dive.
		04.00	LG 3072 [3723]
		08.00	LG 3077 [3771]
		11.37		Outgoing Radio Message:  23/17/9/0216:
				From Pahls:
				Will be abeam "Horsburgh" at 08.30 hours T.Z.  Request harbor escort.
		12.00	LG 5032 [5327]	Day's run:     Surfaced         254 nm
				Submerged         1 nm
				255 nm  Total 2906 nm
		16.00	LG 5037 [5374]
		19.37		Incoming Radio Message:  77/17/9/1150:
				All:
				Acknowledgment for Radio Message 23.
		20.00	LG 5053 [5553]
		18.09.44	Gulf of Siam
		00.00	LG 5057 [5579]
			N 1, Sea 0, 7/10, 1012 mb, Vis. medium
		04.00	LG 5076 [5765]

	Sun and Moon Data 16.09.44
	Sun and Moon Data 17.09.44
	Sun and Moon Data 18.09.44

	- 22 -
		continued
		18.09.44	Gulf of Siam
		07.40		Course 192°.
		08.00	LG 8011 [8121]
		11.25		Tioman Island in sight in 210°T.
		12.00	LG 8017 [7399]	Day's run:  Surfaced 255 nm  Total 3161 nm
		16.00	LG 7069 [7694]
		20.00	LG 7098 [7956]
		19.09.44	Gulf of Siam
		00.00	LG 7096
			SW 2, Sea 1, overcast dew, 1014 mb, Vis. very bad
		01.20		"Horsburgh" in sight.
		02.05		"Horsburgh" abeam.
		02.15		Taken in convoy by small Japanese minesweeper. Boat was led through the Singapore Strait via the West Roadstead to Keppel Harbor.
		06.20		Released from convoy.
		07.00		Boat made fast Keppel Harbor.  The Kmdt reported to the Chef in Malaya, Korv.Kapt. Erhardt.
				Day's run:  Surfaced 145 nm  Total 3306 nm
		20. -27.09.44	Singapore	Removal of U-boat supplies and loading of cargo for Penang.
		28.09.44	Singapore
		07.07		Boat put to sea for the cruise to Penang.  Fu.M.B. equipment and an oil discharge nozzle is to be installed in Penang for the subsequent supply trip.  The boat steered according to the instructions of the Kmdt. via the West Roadstead out of Keppel Harbor.
			SW 3, Sea 1, 6/10, 1014 mb, Vis. good
		08.21	Malaka Strait	Objective buoy abeam to port.
				Course 275°.  Transit speed 11 knots.
		09.45		Course 303°.

	Sun and Moon Data 18.09.44
	Sun and Moon Data 19.09.44
	Sun and Moon Data 28.09.44

	- 23 -
		continued
		28.09.44
		10.30		Pisang Island abeam.
		12.00	LG 7799	Day's run:  Surfaced 56 nm
		15.15		Undan Island in sight in 326°T.
		15.25		A Japanese convoy consisting of 3 small steamers (500-1000 tons) in sight ahead on the same course.  On getting closer the convoy turns to starboard and heads for the coast.
		16.35		Passed a small Japanese U-boat hunter to starboard on the opposite course.
		19.30		"Rochado" abeam.  Course 310°.
		29.09.44	Malaka Strait
		01.00		Boat steered by the instructions of the Kmdt to the southeast entrance of the Klang Strait.
		01.30		Passed about 30 Japanese Army landing craft to port.  The appearance of the U-boat initially aroused great excitement.  The landing craft make their machine guns ready and passed with obvious great distrust!
		03.00		Passed the north entrance of the Klang Strait.  The boat steered at transit speed 14 knots up to the Dinding Strait within the 10-meter line.  There the fish groynes consistently placed in 6 meters of water.  These were passed at a distance of 200-300 meters.  As a result, there is only the possibility of a submarine attack from port. Since the 20-meter line runs to sea at a distance between 2-4 nm and a submerged U-boat is not to be expected within this line, this coastal route is fairly safe against U-boat attacks.  According to the Japanese, there is no acute danger of mines.
				"Bulkheads closed condition" was established and the free watch was ordered on the over deck.
		03.10		Intake by air escort.
		03.15		Pulau Angsa abeam.
		06.15		Pulau Pangkor in sight.
		08.30		"White Rock Island" abeam.
		09.28		Passed the Dinding Strait south entrance.

	Sun and Moon Data 28.09.44
	Sun and Moon Data 29.09.44

	- 24 -
		continued
		29.09.44	Malaka Strait
		09.43		Boat anchored.  20 meters water, 100 meters chain.
				xxxxxx in 100°T.
				xxxxxxxin 47°T.
		09.55		Air escort ended.  This "Arado" under Ltn. Muritz landed in the water and made fast astern.  After giving a report on the "Objective Point" for Penang the aircraft took off again and flew off in the direction of Penang.
				Day's run:  Surfaced 56 nm
		30.09.44
		01.34	WNW 3, Sea 2-3, short Swell, overcast, dew, 1015 mb, Vis. bad.	Weighed anchor.  Boat steered through the Dinding Strait according to the directions of the Kmdt.  I decided to use this very difficult navigationally exit, to continue to run in shallow water.
		02.05		Taken under aircraft escort. Bulkheads closed condition was established and the free watch was ordered on the over deck.
		02.20		Passed the north entrance of the Dinding Strait.  From there proceeded at transit speed 14 knots within the 10-meter line along the fish groynes up to the south entrance to Penang.
		02.40		A Japanese coastal watch boat took over U-boat escort on the port side.  Signal communications by international flag signals worked well.
		06.16		The escort boat sheered off to port and went to high speed.  Initially I turned with and then ran on alone.
		07.11		Pulau Kendi in sight in 347°T
		07.35		The objective buoy for the south entrance to Penang. is abeam.  Steered according to the instructions of the Kmdt. along the buoy line to Penang.
		09.10		Boat made fast at the Swettenham Pier.  Reported to U-boat Base Commander in Penang Korv.Kapt. Dommes.
				Day's run:  Surfaced 76 nm
				Total distance covered 365 nm

	Sun and Moon Data 29.09.44
	Sun and Moon Data 30.09.44

	- 25 -
		01. - 15.10.44	Penang.	The cargo for Penang was unloaded and U-boat provisions for Singapore were loaded.  The shipyard installed an Fu.M.B. Runddipol and an oil delivery nozzle.
		16.10.44	Penang
		09.04		Boat cast off for a trim test.
		09.14 - 10.01		Trim test.
		10.27		Boat made fast at the Swettenham Pier.

	- 26 -
		17.10.44	Penang	Kommandant for the transfer cruise:
				Korv.Kapt. Dommes.
				Because Oblt.z.See Pahls was not capable of commanding "UIT-24" due to Dengue fever, I decided to command the boat to Singapore myself, so as to not have the boat remain unnecessarily in Penang.  Further, I want to get an impression for myself of the usability of the north passage from port that Oblt.z.See Pahls wanted to use and was thought favorable by the Japanese.
		02.04	Penang	Boat cast off to transfer cruise to Singapore.  Steered according to the instructions of the Kommandant along the buoy line up to Buoy 6 (northern entrance).
		04.08	Malaka Strait	Boat dived to proceed submerged.
		12.00	LF 6458 [6481]	Day's run:     Surfaced         22 nm
				Submerged     17 nm
				39 nm
		12.20		Evening twilight.
		12.30	S 1, Sea 0, 8/10, 1014 mb	Surfaced, continued transfer cruise.
		18.25		"Jarak" abeam.
		23.10	[LF 9514]	An enemy U-boat in sight in 157°T.  Range = 3000-4000 meters, broad target angle.  Turned away and took the boat astern.
		23.15		Crash dive.
				Due to uncertainty of the navigation (the Pasir Pandam Island was still not in sight) an avoidance maneuver to the west did not seem prudent and the use of the "One Fathom Bank" passage was not possible due to the mine danger accepted there by the Japanese, as well as the danger of passing there unreported and being picked up by the Japanese U-boat hunters.  I decide to dive to run further on the old course.  My intention was to proceed to the 20-meter line submerged and then run on the surface from there.  It turned out that the battery was too discharged  due to yesterday's submerged transit.  Charging of the battery at high speed 13.5 knots, which was absolutely necessary to bridge the night route is not possible on UIT-24.  Therefore I must decide to surface already at 01.00 and head for shallow water strongly zigzagging.

Sun and Moon Data 17.10.44

	- 27 -
		continued
		17.10.44	Malaka Strait
		23.30		Surfaced.  Continued on the surface.
				[illegible two words] in sight.
				Because I have an agreement with Kptl. Oesten to send air reconnaissance, and at lightness the boat will still not have reached the 20-meter line, immediately after surfacing I sent off a Radio Message.
		18.10.44	Malaka Strait
		01.20		Outgoing Radio Message:  23/18/10/0027:
				From Dommes:
		[LF 6496]  [position is incorrect is off Penang]		07.00 hours enemy U-boat 03°00'N, 11°25'E.  Am 3 hours behind schedule. [position should be about 3°03'N, 100°27'E
		03.15		Aircraft in sight "Arado".
				Because the boat has already reached shallow water, the aircraft flew back.
		04.10		Incoming Radio Message:  53/17/10/0727:
				To Dommes:
				Acknowledge your sent Radio Message 23 with supplemental: "Japanese Navy informed".  Arado and Japanese aircraft on the way.
		10.23		Outgoing Radio Message:  24/18/10/0905:
				From Dommes:
				Will pass latitude of 02°10'N at 18.00 hours T.Z.  Will arrive as planned.
		12.00	LF 9922 [9924]	Day's run:     Surfaced        229 nm
				Submerged         4 nm
				233 nm
			SE 3, Sea 1-2, overcast rain, 1013 mb
		12.30		Evening twilight.
		13.30		Undan in sight in 75°T.
		21.30		Pisang abeam.
		19.10.44	Singapore Strait
		00.30		Objective buoy for the Singapore west entrance abeam.
		02.09		Boat made fast in Singapore Keppel Harbor.

	Sun and Moon Data 17.10.44
	Sun and Moon Data 18.10.44
	Sun and Moon Data 19.10.44

	- 28 -
		continued
		19.10.44		Day's run:  Surfaced 143 nm
				Total distance covered:  415 nm
				The transit through the north passage [illegible 8 lines]
				Singapore 20 October 1944
				Signed in draft Dommes
				Korv.Kapt. and U-boat Base Commander
				Penang
				From 8.4.1944 to 19.10.1944
				total distance covered:  7480 nm
				Singapore 30 October 1944
				Oblt.z.S. and Kommandant

Sun and Moon Data 19.10.44

 

	Enclosures to UIT-24's KTB - click on the text at left to proceed to the document
Maschine	KTB Maschine

 

---

Click the icons to view the associated records
	Return to the U-boat KTB page