Allied Warships

HMS Graph (P 715)

Submarine of the Type VIIC class

NavyThe Royal Navy
TypeSubmarine
ClassType VIIC 
PennantP 715 
Built byBlohm & Voss (Hamburg, Germany) 
Ordered 
Laid down21 May 1940 
Launched20 Mar 1941 
Commissioned19 Sep 1941 
End service21 Jun 1943 
History

Commissioned as German U-570 on 15 May 1941.

The German submarine U-570 was captured by Britain on 27 August 1941 in the North Atlantic south of Iceland, in position 62.15N, 18.35W, after being damaged by a British Hudson aircraft (Sqdn. 269/S). She was towed to Thorlakshafn, Iceland and salvaged.

She was commissioned into the Royal Navy as HMS Graph on 19 September 1941. HMS Graph was decommissioned from active service on 21 June 1943. Graph was lost on 20 March 1944 when she ran aground on the west coast of the Island of Islay, Scotland while en-route to be scrapped.

The Navy List of December 1943 no longer lists HMS Graph as an active unit

 
Former nameU-570

Commands listed for HMS Graph (P 715)

Please note that we're still working on this section.

CommanderFromTo
1Lt. George Robson Colvin, RN31 Aug 194110 Oct 1941
2Lt. Edward Dudley Norman, DSO, DSC, RN10 Oct 19411 Jun 1942
3Lt. Peter Barnsley Marriot, RN1 Jun 19422 Apr 1943
4Lt. David Swanston, DSC, RN3 Apr 194321 Jun 1943

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Notable events involving Graph include:


29 Sep 1941
U 570 (Lt. G.R. Colvin, RN) departed Hvalfjörður, Iceland for Barrow. She made the passage under her own power escorted by HMS Saladin (Lt.Cdr. L.J. Dover, RN) and HMS Kingston Agate (Lt. H.O. L’Estrange, RNR).

3 Oct 1941
U 570 (Lt. G.R. Colvin, RN) arrived at Barrow where she was to undergo repairs before a full series of trials could commence.

18 Feb 1942
With her repairs completed HMS Graph (Lt.Cdr. E.D. Norman, DSC, RN) departed from Barrow for a full series of trials on the Scottish East coast.

25 Apr 1942
After her fist series of trials HMS Graph (Lt.Cdr. E.D. Norman, DSC, RN) departed from Holy Loch for Portsmouth.

27 Apr 1942
HMS Graph (Lt.Cdr. E.D. Norman, DSC, RN) arrived at Portsmouth.

29 Apr 1942
HMS Graph (Lt.Cdr. E.D. Norman, DSC, RN) departed from Portsmouth for Sheerness. She is to proceed to Chatham dockyard for refit and alterations.

1 May 1942
HMS Graph (Lt.Cdr. E.D. Norman, DSC, RN) arrived at Sheerness. She later makes the short trip to Chatham Dockyard.

14 Aug 1942
HMS Graph (Lt. P.B. Marriot, RN) ended a refit at Chatham Dockyard. She proceeded to Sheerness.

16 Aug 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Sheerness for Portsmouth. She is escorted by HMS Vesper (Lt. D.H.R. Bromley, RN).

17 Aug 1942
HMS Graph (Lt. P.B. Marriot, RN) arrived at Portsmouth.

18 Aug 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Portsmouth for Holy Loch.

21 Aug 1942
HMS Graph (Lt. P.B. Marriot, RN) arrived at Holy Loch for a period of training before she will be deployed on patrols.

8 Oct 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Holy Loch for her 1st war patrol. She was ordered to patrol in the Bay of Biscay.

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


HMS Graph 1st war patrol click here for bigger map

21 Oct 1942
While on patrol in the Bay of Biscay, HMS Graph (Lt. P.B. Marriot, RN) attacks but misses German U-boat U-333 with four torpedoes about 50 nautical miles north-north-east of Cape Ortegal, Spain in position 44°31'N, 07°25'W.

(All times are zone -1)
1540 hours - HE was reported bearing 290°.

1620 hours - Sighted a four-engined aircraft overhead. It was identified as being most likely a German Focke-Wulf aircraft. Meanwhile the HE had ceased. Up to this moment the HE had been thought to be that of a trawler but it was now considered that it could be a submarine that had dived upon the approach of the aircraft.

1645 hours - Strong HE was now picked up again bearing 300°. Graph was maneuvered onto a firing course.

1652 hours - The conning tower of the enemy was seen for the first time. Started attack.

1658 hours - Fired four torpedoes. Two explosions were heard after about five and a half minutes. These were followed by breaking up noises. (no explanation can be given for the 'breaking up noises' that were heard).

The KTB (Kriegs Tage Buch, logbook) of U-333 gives the following;
(All times are zone -2)
1654 hours - Sighted aircraft, could not be identified but it was quite big. Dived.

1737 hours - Surfaced.

1755 hours - Sighted torpedo tracks to Starboard. Looked like one torpedo ran on the surface. Turned hard to Port. Four tracks were seen, all missed astern. Four end of run detonations were heard. Sent report to B.d.U. and cleared the area zig-zagging.

29 Oct 1942
HMS Graph (Lt. P.B. Marriot, RN) ended her 1st war patrol at Holy Loch.

14 Nov 1942
HMS Graph (Lt. P.B. Marriot, RN) is docked at Kames Bay, Cumbrae Island.

15 Nov 1942
HMS Graph (Lt. P.B. Marriot, RN) left dock and returns to Holy Loch.

19 Nov 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Holy Loch for her 2nd war patrol. She is to patrol in the Bay of Biscay.

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


HMS Graph 2nd war patrol click here for bigger map

29 Nov 1942
The Italian blockade breaker Cortellazzo had departed Bordeaux bound for Japan on 29 November 1942. The next day the ship was spotted by a Sunderland flying boat. The British submarines HMS Graph (Lt. P.B. Marriot, RN), HMS Clyde (Lt. R.S. Brookes, DSC, RN), and HMS Sealion (Lt. D. Lambert, DSC, RN), were ordered to intercept but failed to do so.

8 Dec 1942
HMS Graph (Lt. P.B. Marriot, RN) ended her 2nd war patrol at Holy Loch.

21 Dec 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Holy Loch bound for Lerwick.

23 Dec 1942
HMS Graph (Lt. P.B. Marriot, RN) arrived at Lerwick.

24 Dec 1942
HMS Graph (Lt. P.B. Marriot, RN) departed from Lerwick for her 3rd war patrol. She is to patrol off Northern Norway to provide cover for convoy JW-51 to Northern Russia.

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


HMS Graph 3rd war patrol click here for bigger map

1 Jan 1943
HMS Graph (Lt. P.B. Marriot, RN) makes a torpedo attack on two 'destroyers' off the Altafjord. All torpedoes fired missed their intended targets.

(All times are zone -1)
0106 hours - In position 70°51'N, 21°56'E sighted a darkened vessel probably a cruiser. Distance was 12000 to 15000 yards. Altered course to attack. The ship was however lost after about 20 minutes.

------------------------------------------------

0431 hours - In position 70°48'N, 21°20'E sighted a destroyer bearing 240°. Range was about 7000 - 8000 yards. The enemy appeared to be steering from left to right. A second destroyer was sighted almost immediately behind the first. Their courses appeared to be very erratic and their speeds were very low. They were thought to be carrying out an A/S search. Turned towards to attack.

0440 hours - Fired four torpedoes at the destroyers. Two heavy explosions were heard 7 and 7 1/2 minutes after firing. Two more, much smaller, explosions were heard 9 minutes after firing. Graph retired on the surface after firing. The results were not observed.

The ships sighted by HMS Graph were the German auxiliary A/S trawlers UJ 1103 and UJ 1109 that were on an A/S patrol. The log of UJ 1103 / Gustav Körner reported one strong underwater explosion was heard and after minute one more. The ship was shaken, but not damaged. Time was 0450 hours.

13 Jan 1943
HMS Graph (Lt. P.B. Marriot, RN) ended her 3rd war patrol at Lerwick.

14 Jan 1943
HMS Graph (Lt. P.B. Marriot, RN) departed from Lerwick bound for Holy Loch.

16 Jan 1943
HMS Graph (Lt. P.B. Marriot, RN) arrived at Holy Loch. She is used for training duties from now on.

9 May 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) departed from Holy Loch for Barrow.

10 May 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) arrived at Barrow.

19 May 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) departed from Barrow for Holy Loch.

20 May 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) arrived at Holy Loch.

5 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) departed from Holy Loch for Dundee.

8 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) arrived at Dundee.

10 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) departed from Dundee bound for Chatham.

12 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) arrived at Sheerness.

13 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) departs Sheerness ad arrived at Chatham shortly afterwards.

21 Jun 1943
HMS Graph (Lt. D. Swanston, DSC and Bar, RN) is put into dockyard control at the Chatham Dockyard.

Media links


Fatal Decisions

Blandford, Edmund


The Führer Led But We Overtook Him

Durham, Phil


His Majesty's U-boat

Reeman, Douglas


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