Stewart Armstrong Porter DSC, RN

Birth details unknown

Ranks

1 Mar 1937 S.Lt.
1 Feb 1939 Lt.
1 Nov 1945 A/Lt.Cdr.
16 Oct 1946 Lt.Cdr.
30 Jun 1950 Cdr.
31 Dec 1956 Capt.

Retired: 1 Jan 1959


Decorations

29 Jun 1943 DSC

Warship Commands listed for Stewart Armstrong Porter, RN


ShipRankTypeFromTo
HMS H 44 (N 44)Lt.Submarine7 Mar 194210 Apr 1942
HMS P 556 (P 556)Lt.SubmarineApr 19426 Oct 1942
HMS Tribune (N 76)Lt.Submarine20 Dec 19428 Jul 1943
HMS Tudor (P 326)Lt.Submarine24 Sep 194319 Nov 1945

Career information

We currently have no career / biographical information on this officer.

Events related to this officer

Submarine HMS H 44 (N 44)


8 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Campbeltown. (1)

9 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Campbeltown. (1)

10 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Campbeltown. Upon completion of these exercises HMS H 44 proceeded to Rothesay. (1)

12 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) shifted from Rothesay to Campbeltown. (1)

13 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Campbeltown. (1)

14 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) shifted from Campbeltown to Rothesay. (1)

16 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) shifted Rothesay to Glasgow. (1)

17 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) is docked at Glasgow. (1)

26 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) is undocked. (1)

28 Mar 1942
HMS H 44 (Lt. S.A. Porter, RN) shifted from Glasgow to Rothesay. (1)

30 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) departed Rothesay for Tobermory. She is escorted by HMS Algerine (Lt.Cdr. W.A. Cooke, RN). (1)

31 Mar 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) arrived at Tobermory. (1)

1 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) conducted A/S exercises off Tobermory with HMS Manxman (Capt. R.K. Dickson, RN). (2)

2 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

3 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

4 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

6 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

7 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

8 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)

9 Apr 1942 (position 0.00, 0.00)
HMS H 44 (Lt. S.A. Porter, RN) participated in A/S exercises off Tobermory. (2)


Submarine HMS Tribune (N 76)


22 Dec 1942
HMS Tribune (Lt. S.A. Porter, RN) departed from Gibraltar for Algiers.

Spare commanding officer Lt. Porter had meanwhile taken over command from Lt. Coe as the medical condition of Lt. Coe rendered him unfit for patrols.

For the daily positions of HMS Tribune during this passage see the map below.


HMS Tribune passage Gibraltar - Algiersclick here for bigger map (3)

25 Dec 1942 (position 37.24, -1.13)
At 1050 hours (zone -1) HMS Tribune (Lt. S.A. Porter, RN) is bombed by an unidentified aircraft (it was thought that this was a German JU-88). Tribune dived and no damage was inflicted. Tribune's log however does not give a position.

However in February 2013 Mr. Eric Zimmerman informed us that this attack on Tribune was by Wellington 179/C (HX749) piloted by P/O S.H. Nicholson that attacked a submarine at 1058 hours in position 37°24'N 01°13'W.

After gaining a radar contact the aircraft homed and was able to sight at 6 miles the conning tower of a submarine on an easterly course. The submarine submerged and the Wellington attacked with a stick of 3 depth charges (the 4th hung up) from a height of 50 feet. The 3rd depth charge fell dead on the track of the submarine which could be seen under the water some 200 feet ahead of the swirl. Despite what seemed like a direct hit the after results of the attack were disappointing being no more than a small patch of oil which quickly dispersed. Baiting tactics were employed but no further contacts were made. (3)

26 Dec 1942
HMS Tribune (Lt. S.A. Porter, RN) arrived at Algiers. (3)

30 Dec 1942
HMS Tribune (Lt. S.A. Porter, RN) departed from Algiers for her 16th war patrol (2nd in the Mediterranean). She was ordered to patrol off Southern France and the Italian Ligurian coast. She is also to carry out a special operation (landing agents on Corsica).

For the daily and attack positions of HMS Tribune during this patrol see the map below.


HMS Tribune 16th war patrolclick here for bigger map (4)

2 Jan 1943
In the early morning hours HMS Tribune (Lt. S.A. Porter, RN) tries to perform reconnaissance of the landing zone where the agents had to landed. Due to the bad weather this was not possible.

A second attempt was made during the evening but it was decided to postpone the special operation for a while and to continue to the South coast of France. (4)

5 Jan 1943
HMS Tribune (Lt. S.A. Porter, RN) returned to Corsica to land the agents at Lava Bay. When about to do so a searchlight swept through the area. The landing was abandoned as the area seemed to be too well defended. A new position to land to the South of Ajaccio was selected. (4)

7 Jan 1943
HMS Tribune (Lt. S.A. Porter, RN) successfully completed her special operation ( 'Operation Sideline' ).

(All times are zone -1)
0623 hours (6th) - Dived and closed Copaiba Bay and carried out close reconnaissance from 1/2 mile.

1700 hours (6th) - Withdrew dived to the seaward.

1923 hours (6th) - Surfaced and proceeded to seaward to charge.

2140 hours (6th) - Returned to the bay for operation Sideline.

2240 hours (6th) - Proceeded on main motors instead of diesels.

2345 hours (6th) - Brought up the rubber boats, baggage and bicycle onto the fore casing. Trimmed down forward.

0025 hours (7th) - In position 41°44'N, 08°45'E both rubber boats were launched with the three agents.

0240 hours (7th) - The boats and their 'drivers' were recovered. The agents and their stores had been successfully landed. (4)

10 Jan 1943 (position 43.52, 8.03)
HMS Tribune (Lt. S.A. Porter, RN) torpedoed and damaged the French merchant Dalny (6672 GRT, built 1914) 15 nautical miles from San Remo, Italy. The Dalny was beached to prevent her from sinking.

(All times are zone -1)
0910 hours - Sighted funnel and mast of a merchant ship against the land. The ship was Eastbound. Closed at speed to intercept. One aircraft was seen to escort the merchant.

1003 hours - In position 43°52'N, 08°03'E fired four torpedoes from 1200 yards. In the next 20 minutes 10 bombs were dropped from aircraft. 2 Of these were quite close. Tribune lost depth control upon firing the torpedoes and the periscope standards briefly broke surface, giving her position away. Despite this the first torpedo fired hit the ship.

1016 hours - Returned to periscope depth. Saw the merchant laying stopped. She was of about 6000 tons and was seen wearing a Nazi ensign. Tribune quickly returned to 90 feet and retired from the scene as the aircraft had detected her a periscope depth.

The crew of Dalny was saved including three wounded. (4)

11 Jan 1943
HMS Tribune (Lt. S.A. Porter, RN) again torpedoed and damaged the (now beached) French merchant Dalny (6672 GRT, built 1914) off Capo Cervo, Italy.

(All times are zone -1)
1645 hours - Sighted the 6000 tons merchant ship that was torpedoed yesterday ashore on Capo Cervo. Closed to fire a single bow torpedo but got too close. Ran out to seaward and at ....

1728 hours - Fired the stern tube from 2200 yards. A hit was obtained. The ship was on an exposed beach and was now considered to be a total loss. (4)

13 Jan 1943 (position 43.14, 6.47)
HMS Tribune (Lt. S.A. Porter, RN) makes a torpedo attack on a merchant vessel off Saint-Tropez, France. Three torpedoes were fired but no hits were obtained.

(All times are zone -1)
1735 hours - Sighted a 2500 tons merchant ship in ballast. She was Eastbound. Closed to attack.

1753 hours - In position 43°14'N, 06°47'E fired three torpedoes from 2500 yards. All missed and probably ran under as the ship proved smaller then was initially thought. (4)

17 Jan 1943
HMS Tribune (Lt. S.A. Porter, RN) ended her 16th war patrol (2nd in the Mediterranean) at Algiers. (4)

31 Jan 1943
HMS Tribune (Lt. S.A. Porter, RN) is docked at Algiers. (5)

2 Feb 1943
HMS Tribune (Lt. S.A. Porter, RN) is undocked. (6)

4 Feb 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Algiers for her 17th war patrol (3rd in the Mediterranean). She was ordered to patrol in the Tyrrhenian Sea.

For the daily and attack positions of HMS Tribune during this patrol see the map below.


HMS Tribune 17th war patrolclick here for bigger map (7)

10 Feb 1943 (position 40.09, 14.59)
HMS Tribune (Lt. S.A. Porter, RN) makes a torpedo attack on an Italian southbound merchant vessel of 2500 tons about 5 nautical miles South-West of Acciaroli, Italy. Three torpedoes were fired but no hits were obtained.

(All times are zone -1)
1202 hours - Sighted a merchant vessel at a range of 9000 yards. She was wearing the Italian ensign. Closed to attack. The ship was heavily laden so the torpedoes were set to 10 feet, enemy speed was 10 knots. The target was not escorted but there were several aircraft patrolling the area.

1230 hours - In position 40°09'N, 14°59'E fired three torpedoes from 2300 yards. No hits were obtained. The attack was not observed as the target continued on its course.

Italian sources report that the Italian auxiliary V 265 / Cesena (105 GRT, built 1921) sighted two torpedoes exploding on the coast at this time and location. If another ship was involved (given the tonnage difference), it has not been identified so far. (7)

21 Feb 1943
HMS Tribune (Lt. S.A. Porter, RN) ended her 17th war patrol (3rd in the Mediterranean) at Algiers. (7)

28 Feb 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Algiers for Gibraltar for some repairs that could not be done at Algiers.

For the daily positions of HMS Tribune during this passage see the map below.


HMS Tribune passage Algiers - Gibraltar and backclick here for bigger map (6)

3 Mar 1943
HMS Tribune (Lt. S.A. Porter, RN) arrived at Gibraltar. (8)

8 Mar 1943
With her repairs completed, HMS Tribune (Lt. S.A. Porter, RN), departed from Gibraltar for Algiers. (8)

12 Mar 1943
HMS Tribune (Lt. S.A. Porter, RN) arrived at Algiers. (8)

16 Mar 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Algiers for her 18th war patrol (4th in the Mediterranean). She was ordered to patrol in the Tyrrhenian Sea.

For the daily and attack positions of HMS Tribune during this patrol see the map below.


HMS Tribune 18th war patrolclick here for bigger map (7)

22 Mar 1943 (position 39.14, 15.59)
HMS Tribune (Lt. S.A. Porter, RN) torpedoed and damaged the German tanker Pr?sident Herrenschmidt (9103 GRT, built 1932, former French, former Norwegian) about 5 nautical miles South-West of San Lucido, Italy in position 39°14'N, 15°59'E.

(All times are zone -1)
1040 hours - Sighted vessel Southbound, and hull down at a range of about 12000 yards. Tribune was between the land and the target.

1100 hours - No air escort was sighted but there was a camouflaged Spica class torpedo boat as escort present on the seaward side of the target. Tribune was thus well placed for an attack.

1115 hours - In position 39°14'N, 15°59'E fired three torpedoes from 1200 yards against what was identified as a 6000 tons tanker. The second torpedo hit the tanker aft in the engine room and the targets HE ceased at once.

1130 hours - A counter attack was commenced by the torpedo boat. Due to a leak in a ballast tank Tribune took more water in and lost trim. She sank to 320 feet. Ten depth charges were dropped singly as well as two aircraft bombs. These last two were quite close but the depth charges were not close.

1312 hours - Came to periscope depth after it had been quit for over 40 minutes. Saw the tanker in sight, stopped and well down by the stern. The torpedo boat was still present as were three aircraft. Went deep again.

1429 hours - Returned to periscope depth. No sign of the tanker but had to go deep again for aircraft. It was thought possible that the tanker had sunk.

According to Italian sources the Pr?sident Herrenschmidt was escorted by the torpedo boat Sirio. She was later towed to Naples by the tugs Salvatore Primo and Athleto. (7)

30 Mar 1943 (position 39.37, 13.15)
HMS Tribune (Lt. S.A. Porter, RN) unsuccessfully fires three torpedoes at the Italian merchant Benevento (5229 GRT, built 1918, former French Fort de Souville) about 50 nautical miles north of Ustica, Italy in position 39°37'N, 13°15'E. No hits were obtained. Benevento did however not reach Tunis (her destination), she was sunk later by British Motor Torpedo Boats.

(All times are zone -1)
1224 hours - Sighted masts and funnel of a ship at a range of 7 nautical miles, course South-West. Commenced attack.

1250 hours - Identified the target as a deeply laden 6000 tons merchant ship. Two armed trawlers were ahead. A Spica class torpedo boat was astern. Several aircraft were also patrolling the area.

1325 hours - Closed to 7000 yards. Not able to get much more closer.

1331 hours - In position 39°37'N, 13°15'E fired three torpedoes from 6500 yards (four torpedoes were intended). After just over 5 minutes two bombs were heard to explode followed by a deep explosion that was thought to be a hit. This gave a range of about 7400 yards. HE of the target ceased and was not heard again.

1336 hours - A counter attack now commenced by the two trawlers and the torpedo boat and several aircraft (Actually only torpedo boat Dezza dropped depth charges). As all three escorts joined the hunt it seemed obvious that the target was hit. The vessels circled Tribune and were in contact several times. Only 15 depth charges were dropped as well as several aircraft bombs but these did no damage. Due to trim problems Tribune sank to 380 feet. After almost one and a half hour Tribune managed to escape from the area.

1620 hours - Came to periscope depth. Nothing in sight.

According to Italian sources the above mentioned Benevento was in convoy with Nuoro (3075 GRT, built 1920, former French Saint Ambroise) and Crema (1684 GRT, built 1920, former French Hebe) escorted by the Italian torpedo-boats Clio and Dezza and the German auxiliary submarine chasers UJ-2202, UJ-2203 and UJ-2207. Lt. Porter apparently had not seen all ships in this convoy. (7)

5 Apr 1943
HMS Tribune (Lt. S.A. Porter, RN) ended her 18th war patrol (4th in the Mediterranean) at Algiers. This was the last operational patrol of HMS Tribune, due to problems with her engines (once again !) she has to return to the U.K. for refit. (7)

3 May 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Algiers for Gibraltar. She is to proceed back to the U.K.

For the daily positions of HMS Tribune during this passage see the map below.


HMS Tribune passage Algiers - Portsmouthclick here for bigger map (9)

7 May 1943
HMS Tribune (Lt. S.A. Porter, RN) arrived at Gibraltar. (9)

13 May 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Gibraltar for Portsmouth. (7)

23 May 1943
HMS Tribune (Lt. S.A. Porter, RN) arrived at Plymouth. She was escorted in by the French patrol vessel Chasseur 13. (7)

24 May 1943
HMS Tribune (Lt. S.A. Porter, RN) departed from Plymouth for Portsmouth where she arrived later the same day. It has been decided due to the ever returning engine troubles to use Tribune as training boat. At Portsmouth she will undergo repairs to make her fit for her role as training boat. (7)

21 Jun 1943
HMS Tribune (Lt. S.A. Porter, RN) is docked at Portsmouth in No.12 dry dock. (10)

30 Jun 1943
HMS Tribune (Lt. S.A. Porter, DSC, RN) is undocked. (10)

2 Jul 1943
HMS Tribune (Lt. S.A. Porter, RN) is docked again at Portsmouth but this time in the floating drydock at HMS Dolphin (the submarine base). She left dock after only a few hours. (11)


Submarine HMS Tudor (P 326)


19 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

22 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

23 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

24 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

28 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

30 Dec 1943 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (12)

2 Jan 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is docked at Plymouth. (13)

7 Jan 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) is undocked. (13)

10 Jan 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted trials off Plymouth. (13)

12 Jan 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed Plymouth for Holy Loch. She made the passage together with HMS Tantalus (Lt.Cdr. H.S. Mackenzie, DSO and Bar, RN). They were escorted by HMS Rosevean (T/A/Lt.Cdr. L.H. Hill, DSC, RNVR). (13)

14 Jan 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Holy Loch to begin a period of trials and training. (13)

19 Feb 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed Holy Loch exercises and subsequent passage to Scapa Flow. She made the passage together with HMS Sea Nymph (Lt. J.P.H. Oakley, DSC, RN) and HrMs O 21 (Lt.Cdr. J.F. van Dulm, RNN). They were escorted by HMS Wallflower (Lt. G.R. Greaves, RNR). (14)

21 Feb 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Scapa Flow where she was to participate in A/S exercises. (14)

10 Mar 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed Scapa Flow for Holy Loch. She made the passage together with HMS Sea Nymph (Lt. J.P.H. Oakley, DSC, RN). They were escorted by HMS Cutty Sark (Cdr.(Retd.) R.H. Mack, RN). (15)

11 Mar 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Holy Loch. (15)

13 Mar 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is docked at Holy Loch. (15)

14 Mar 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is undocked. (15)

16 May 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Holy Loch bound for Gibraltar. She is to proceed to Trincomalee to join the Eastern Fleet. She made the passage to south through the Irish Sea together with HrMs Zwaardvisch (Lt.Cdr. H.A.W. Goossens, RNN) and HMS Tudor (Lt. S.A. Porter, DSC, RN). They were escorted by HMS La Capricieuse (Lt.Cdr.(Retd.) C.M. Norman, RN).

For the daily positions of HMS Tudor during this passage see the map below.


HMS Tudor passage U.K. - Trincomaleeclick here for bigger map (16)

29 May 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Gibraltar. (16)

6 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Gibraltar bound for Malta. (17)

11 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Malta. (17)

19 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Malta bound for Port Said. (17)

24 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Port Said. (17)

26 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) transits the Suez Canal. (17)

27 Jun 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Suez bound for Aden. (17)

2 Jul 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Aden. (18)

6 Jul 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Aden bound for Trincomalee. (18)

16 Jul 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Trincomalee. (18)

31 Jul 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (18)

2 Aug 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (19)

3 Aug 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (19)

4 Aug 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (19)

6 Aug 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Trincomalee for her 1st war patrol. She is to patrol off the Northern entrance to the Malacca Straits and to perform a special mission.

For the daily and attack positions of HMS Tudor during this patrol see the map below.


HMS Tudor 1st war patrolclick here for bigger map (20)

17 Aug 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) lands a party to make a beach reconnaissance at Bireuen on the North coast of Sumatra. The party is recovered after about 3 hours. (20)

18 Aug 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) again lands a party to make a beach reconnaissance at Bireuen on the North coast of Sumatra. The party is recovered after about 3,5 hours. (20)

22 Aug 1944 (position 5.19, 96.30)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank a junk with gunfire north of Sumatra in position 05°19'N, 96°30'E.

(All times are zone -6,5)
1246 hours - Surfaced to sink a junk, that was 3/4 laden, about 120 feet long and estimated to be 100 tons.

1253 hours - Dived. (20)

23 Aug 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) again lands a party to make a beach reconnaissance at Bireuen on the North coast of Sumatra. The party is recovered early the next day after about almost 4 hours. (20)

30 Aug 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 1st war patrol at Trincomalee. (20)

12 Sep 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is docked at Trincomalee. (21)

15 Sep 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is undocked. (21)

18 Sep 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (21)

19 Sep 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Trincomalee for her 2nd war patrol. She is to patrol along the West coast of Siam and to lay a minefield.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 2nd war patrolclick here for bigger map (20)

24 Sep 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) lays 10 mines off the west coast of Siam.

(All miles are zone -6,5)
2002 hours - Laid 6 mines staggered either side of a line 079° from position 07°23'3"N, 99°04'2"E up to the 5,5 fathom line. Distance between the mines was 600 feet. The depth of the water was 5,5 to 7 fathoms.

2050 hours - completed the first lay of 6 mines.

2310 hours - Commenced the second lay of 4 mines from position 07°28'N, 99°03'9"E, in a 275° direction staggered at 600 feet apart, in a depth of 7 fathoms.

2318 hours - Lay completed. (20)

14 Oct 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 2nd war patrol at Trincomalee. (20)

1 Nov 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (22)

2 Nov 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Trincomalee for her 3rd war patrol. She is to patrol along the West coast of Sumatra.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 3rd war patrolclick here for bigger map (20)

16 Nov 1944 (position -2.18, 100.52)
HMS Tudor (Lt. S.A. Porter, DSC, RN) destroys a Japanese coaster with gunfire of the west coast of Sumatra in position 02°18'S, 100°52'E.

(All times are zone -6,5)
0815 hours - Sighted a vessel rounding the buoy off Indrapura Point. Closed to the Northward.

0830 hours - Identified the target as a 150 ton motor ship with the engines and passenger accommodation aft. She was Southbound at 6 knots coast crawling keeping a steady one mile of the coast.

0925 hours - Surfaced in position 02°15'S, 100°48'E on the starboard quarter of the target, range 2000 yards and opened fire with the 4"gun and the Oerlikon. The vessel was soon hit aft in the engine room and stopped with a list to starboard. 3 other hits were observed in the hull after 12 rounds.

0929 hours - After the 12th round a Rufe floatplane was seen coming down the coast from the North. It was heard before it was seen, due to the low clouds.

0930 hours - Dived to 48 feet. Three bombs were dropped by the aircraft. The first one was rather close and did some damage to several gauges.

1130 hours - Sighted the target aground in position 02°18'S, 100°52'E. The stern was still in the water so Lt. Porter decided to fire a torpedo. Closed to the 10 fathom line.

1209 hours - Fired one torpedo from 2000 yards. After an in initial swerve 15° of course the torpedo exploded prematurely after running for 400 yards.

1345 hours - Sighted a patrolling aircraft so surfacing to finish of the ship with gunfire was now out of the question.

1500 hours - After the aircraft had left closed the target again.

1737 hours - Surfaced in position 02°18'5"S, 100°51'E. Opened fire from 2000 yards at the beached motor ship with the 4" gun and the Oerlikon. 8 hits out of 20 rounds of 4" were scored on the vessel. It was now well on fire. This is a total loss to the enemy.

1745 hours -Ceased fire and dived. Retired to the seaward. (20)

26 Nov 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 3rd war patrol at Trincomalee. (20)

11 Dec 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (23)

14 Dec 1944 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (23)

15 Dec 1944
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Trincomalee for her 4th war patrol. She is to patrol along the coast of Burma.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 4th war patrolclick here for bigger map (20)

22 Dec 1944 (position 13.42, 98.05)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank a sailing vessel with gunfire of the west coast of Burma in position 13°42'N, 98°05'E.

(All times are zone -6,5)
1508 hours - Sighted a two mast schooner that was Northbound. Closed it while dived to attack it with gunfire. The vessel was tacking the coast and just before Tudor was about to surface it anchored off the coast and lowered it sails. She was of similar built to a Chinese timber tongkang.

1608 hours - Surfaced in position 13°42'N, 98°05'E and opened fire with the 4"gun, range 1300 yards. After hitting with the 3rd round paused to allow the crew to abandon ship, which they did not do. As Lt. Porter did not want to wait in this exposed position (shallow water) the shelling now continued until the vessel blew up with a very satisfactory explosion. The vessel was of about 70 tons and was probably carrying cased petrol judging by the flame and the smoke. 11 Rounds in all were fired for 5 hits.

1613 hours - Dived and retired from the scene. (20)

24 Dec 1944 (position 13.44, 98.04)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank two sailing vessels with gunfire of the west coast of Burma in position 13°44'N, 98°04'E.

(All times are zone -6,5)
0800 hours - Sighted a 70 tons schooner rigged tongkang Northbound and a small two masted junk of 25 tons deep laden and also Northbound. Closed the schooner while dived for gun action.

0849 hours - Surfaced in position 13°43'N, 98°04'E and sank the schooner with 5 rounds of 4", all were hits. There was a pause in the shooting to allow the crew to abandon ship which they did not do. The shooting continued and the vessel soon exploded, she was most likely carrying ammunition.

Closed the junk which had now anchored of the shore. The crew was now on the beach having left their ship in a sampan. 18 rounds of 4" were fired before this ship also exploded in position 13°45'N, 98°04'E.

0901 hours - Dived. (20)

25 Dec 1944 (position 13.19, 98.22)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank two sailing vessels with gunfire of the west coast of Burma. One in position 13°14'N, 98°17'E and one in position 13°19N, 98°22'E.

(All times are zone -6,5)
0845 hours - Closed a 15 ton two masted junk that was Northbound and deep laden.

0854 hours - Surfaced in position 13°14'N, 98°17'E and fired a warning shot. The crew did not abandon ship. Continued to fire with the 4" gun and after three rounds the vessel sank by the head.

0900 hours - Dived and set course to the Eastward.

1055 hours - A schooner was sighted to the East. It was Northbound. Closed the schooner while dived.

1208 hours - Surfaced in position 13°19'N, 98°22'E and fired a warning shot. The crew took no action. Continued the firing and after 11 hits after 13 rounds the vessel sank.

1214 hours - Dived and retired to the West. (20)

27 Dec 1944 (position 14.01, 98.02)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank a sailing vessel with gunfire of the west coast of Burma in position 14°01'N, 98°02'E .

(All times are zone -6,5)
1100 hours - Sighted a two-masted schooner, deep laden and Northbound.

1131 hours - Surfaced in position 14°01'N, 98°02'E and sank the vessel with 14 rounds of 4".

1140 hours - Dived and proceed Southward. (20)

29 Dec 1944 (position 13.47, 98.04)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank a Japanese junk with gunfire of the west coast of Burma in position 13°47'N, 98°04'E.

(All times are zone -6,5)
1430 hours - Sighted a large junk Northbound. closed dived to a range of 1500 yards.

1609 hours - Surfaced in position 13°47'N, 98°04'E. The vessel was of 100 tons, had three masts and was flying the Japanese flag. Nine rounds were fired, all were hits. The vessel sank in 2,5 minutes.

1615 hours - Dived and proceeded southward. (20)

5 Jan 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 4th war patrol at Trincomalee. (20)

11 Jan 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is docked at Trincomalee. (24)

16 Jan 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is undocked. (24)

28 Jan 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted exercises off Trincomalee. (24)

30 Jan 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Trincomalee for Fremantle, Australia.

For the daily positions of HMS Tudor during this passage see the map below.


HMS Tudor passage Trincomalee - Fremantleclick here for bigger map (24)

13 Feb 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Fremantle. (25)

1 Mar 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) conducted noise trials off Fremantle.

4 Mar 1945 (position 0.00, 0.00)
During 4 and 5 March 1945, HMS Tudor (Lt. S.A. Porter, DSC, RN), conducted exercises off Fremantle, these included night exercises. (26)

7 Mar 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Fremantle for her 5th war patrol. She is to patrol in the Southern part of the South China Sea.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 5th war patrolclick here for bigger map (20)

22 Mar 1945 (position 2.26, 108.54)
HMS Tudor (Lt. S.A. Porter, DSC, RN) attacks a convoy of two small merchants with three escorts in position 02°26'5"N, 108°54'E. Four torpedoes were fired at the largest merchant but none hit. Tudor was hunted and depth charged after the attack but managed to escape.

(All times are zone -8)
1234 hours - In position 02°27'N, 108°52'E sighted puffs of smoke to the South-East. Closed at speed.

1256 hours - The enemy's course appears to be about 050°, speed was about 5 knots. The vessels appeared to be heading towards Royalist Haven (Serasan Island).

1325 hours - Sighted masts and funnel of a ship. Range was about 6000 yards.

1327 hours - Sighted on modern escort ahead of the target using Asdic. The escort was about 400 tons with large sheer and concentrated superstructure, unlike any silhouette in the books, obviously it was new construction. The target was a 1400 ton merchant ship. Astern of the target was another escort with two raked masts and a low superstructure with a gun forward. Astern of this second escort was another merchant of about 1200 tons. Astern of this merchant was a trawler that was bringing up the rear.

1336 hours - In position 02°26'5"N, 108°54'E fired four torpedoes set at 6 feet. Went deep and turned South immediately after firing. No hits were obtained. The leading escort gained contact on Tudor. It went right overhead but dropped nothing at that time despite the firm contact. Shortly afterward 7 small depth charges were dropped but these were not too close. A further 8 depth charges were dropped but also none of these was too close. The escort then started an Asdic hunt. Tudor turned to the South-West to keep end on and gain deeper water.

1430 hours - The escort was joined by a second one. They were in contact but did not drop anything further. They just tried to keep Tudor down.

1500 hours - Heard no more of the escorts, HE and pinging had ceased.

1609 hours - After hearing nothing for over an hour returned to periscope depth. Tudor was detected right away as she came from under a density in the water. The escorts were obviously still there. Tudor returned to 110 feet and altered course to the Westward. The escorts passed overhead but did not drop anything.

1633 hours - Both escorts lost contact by now. No HE was heard.

1837 hours - Came to periscope depth and found nothing in sight.

1931 hours - Surfaced in position 02°20'N, 108°40'E. Set course for the channel south of Great Natuna Island hoping the enemy would go that way tomorrow. (20)

23 Mar 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) again sights the convoy she unsuccessfully attacked the day before. An attack is set up but as the American submarine USS Boarfish, that is also on the scene, is detected by one of the escorts the convoy changes course. Tudor's attack is spoiled by this change of course.

(All times are zone -8)
1440 hours - In position 03°27'N, 108°09'E sighted a vessel to the Southward. Commenced attack.

1447 hours - Identified the target as an American submarine that was going Northbound at 17 knots and was zigging. Ceased attack.

1454 hours - The American submarine was no longer in sight, it must have dived.

1520 hours - In position 03°26'5"N, 108°09'5"E sighted smoke to the South-East. Closed.

1541 hours - The smoke was identified as coming from a convoy. It was the same convoy that was attacked the day before. Commenced attack on the second merchant ship (Tudor was not in a correct position to be able to attack the first, slightly bigger, merchant ship).

1547 hours - Went deep and closed at speed.

1554 hours - The leading escort was pinging but not in contact.

1604 hours - The convoy zigged towards Tudor.

1605 hours - Tudor was now in position 03°26'N, 108°11'E when it was seen that the leading escort hoisted a flag, turned towards and increased speed. She was in contact but not with Tudor so it must have been the American submarine. The escort dropped 13 depth charges. Meanwhile the convoy had changed course spoiling Tudor's attack. The game of cat and mouse between the escort and both submarines continued for the rest of the day. (20)

15 Apr 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 5th war patrol at Fremantle. (20)

28 Apr 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is put on the slipway at Fremantle. (27)

30 Apr 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is put back in the water. (27)

3 May 1945
During 3/4 May 1945, HMS Tudor (Lt. S.A. Porter, DSC, RN), conducted exercises off Fremantle, these included night exercises. (28)

7 May 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Fremantle for her 6th war patrol. She is to patrol in the Eastern part of the Java Sea.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 5th war patrol weergeven op een grotere kaart (20)

10 Jun 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 6th war patrol (that was blank) at Fremantle. (20)

27 Jun 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is docked at Fremantle. (29)

28 Jun 1945 (position 0.00, 0.00)
HMS Tudor (Lt. S.A. Porter, DSC, RN) is undocked. (29)

29 Jun 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Fremantle for her 7th war patrol. She is to patrol in the Java Sea. This is her last patrol before she is to be sent back to the U.K. for refit.

For the daily positions of HMS Tudor during this patrol see the map below.


HMS Tudor 7th war patrolclick here for bigger map (20)

9 Jul 1945
After repairs HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Fremantle to resume her 7th war patrol. (20)

23 Jul 1945 (position -6.09, 108.13)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank a schooner with gunfire in the Java Sea in position 06°09'S, 108°13'E.

(All times are zone -9)
1445 hours - Sighted a schooner of about 150 tons Eastbound. The vessel was deep laden and there were oil drums on the upper deck. Closed submerged.

1530 hours - Surfaced in position 06°09'S, 108°13'E and fired warning shots. The crew eventually abandoned ship in a boat and the schooner was sunk with 4" gunfire.

1552 hours - Dived and resumed patrol going Northward. (20)

28 Jul 1945 (position -6.48, 109.31)
HMS Tudor (Lt. S.A. Porter, DSC, RN) sank two Japanese sea trucks with gunfire in the Java Sea in position 06°48'S, 109°31'E.

(All times are zone -9)
1625 hours - Sighted two sea trucks of about 250 tons each. They were Westbound. No escort or air cover was visible. Closed the 10 fathom line submerged.

1637 hours - Surfaced in position 06°48'S, 109°31'E and opened fire on the leading sea truck. Scored hits on both and the both turned towards the beach and beached themselves. Both were abandoned by the crews. A total of 113 rounds of 4" were fired. Both vessels took many hits.

1707 hours - Turned to the seaward.

1719 hours - Dived in position 06°44'S, 19°34'E. (20)

29 Jul 1945 (position -6.50, 109.37)
HMS Tudor (Lt. S.A. Porter, DSC, RN) destroys a Japanese sea truck with gunfire in the Java Sea in position 06°50'S, 109°37'E.

(All times are zone -9)
1845 hours - Sighted a sea truck on the beach at Pekalongan.

1905 hours - Surfaced in position 06°48'S, 109°42'E and opened fire from 4500 yards with the 4" gun. Now a laden sea truck was sighted 4 nautical miles to the West and Eastbound.

1906 hours - Ceased fire and set off to the laden sea truck of about 250 tons. The sea truck saw the submarine and headed towards the beach.

1919 hours - Opened fire from 4000 yards. The sea truck beached itself in position 06°50'S, 109°37'E. Fired 70 rounds for 30 hits. The vessel blew up with a spectacular explosion.

1942 hours - Set course to seaward. (20)

11 Aug 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) ended her 7th war patrol at Fremantle. (20)

22 Aug 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Fremantle bound for Aden. She is to proceed to the U.K. where she is to refit. (30)

11 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) makes a short call at Aden she departed from for Suez the same day. (31)

16 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Suez. (31)

17 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) transits the Suez Canal and arrived at Port Said. (31)

22 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Port Said bound for Gibraltar. (31)

28 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Gibraltar. (31)

30 Sep 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Gibraltar bound for Portsmouth. (31)

5 Oct 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) arrived at Portsmouth. (31)

23 Oct 1945
HMS Tudor (Lt. S.A. Porter, DSC, RN) departed from Portsmouth for the Devonport Dockyard where she is to refit. (31)

Sources

  1. ADM 173/17259
  2. ADM 173/17260
  3. ADM 173/17643
  4. ADM 199/1227
  5. ADM 173/18263
  6. ADM 173/18264
  7. ADM 199/1847
  8. ADM 173/18265
  9. ADM 173/18266
  10. ADM 173/18267
  11. ADM 173/18268
  12. ADM 173/18303
  13. ADM 173/19133
  14. ADM 173/19134
  15. ADM 173/19135
  16. ADM 173/19137
  17. ADM 173/19138
  18. ADM 173/19139
  19. ADM 173/19140
  20. ADM 199/1868
  21. ADM 173/19141
  22. ADM 173/19143
  23. ADM 173/19144
  24. ADM 173/20042
  25. ADM 173/20043
  26. ADM 173/20044
  27. ADM 173/20045
  28. ADM 173/20046
  29. ADM 173/20047
  30. ADM 173/20049
  31. ADM 199/2572

ADM numbers indicate documents at the British National Archives at Kew, London.


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