British and Allied Submarine
Operations in World War II
Vice Admiral Sir Arthur Hezlet KBE CB DSO* DSC

 

 

     
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NOTES FOR CHAPTER XXIII

1. No figures can be found for the west coast of Italy.
2. Their patrols are described in Chapter XX
3. Exactly where is not known as she was lost on this patrol.
4. Rohwer and Hammelchen also credit her with sinking the customs sloop Nioi.
5. See Mediterranean and Middle East (Molony) Vol V, pp 551–2.
6. At first it was thought possible that a claim by U565 to have sunk a submarine east of Kos might be Simoom but if so she must have left patrol early by a route other than that ordered. Other minefields in the vicinity of her patrol areas were over two years old and their positions
were probably known since the Italian surrender. Simoom is credited by Rohwer and Hammelchen of damaging a ship by torpedo in November.
7. Rohwer and Hammelchen say Unruly sank Marguerite of 920 tons in this period carrying 900 prisoners of war and that 350 of them were saved. No record of an attack by Unruly can be found and as no date is given for the sinking it is difficult to attribute it to any other boat.
8. Rohwer and Hammelchen say that the U-boat was U73 and that she was undamaged.

 

9. Casabianca is also credited by Rohwer and Hammelchen with sinking UJ6076.
10. There is no reference to this incident in any of the Official Histories or the writings of Winston Churchill. The source, which there is no reason to doubt is in Alastair Mars’ ‘Submarines at War 1939–45’ written from his experiences as a staff officer to A(S) at the time.
11. Surf did not wish to use her two upper internal bow tubes as she was chasing at full buoyancy on the surface. In this state the tubes were partly above water and would not fill after firing and no compensating water would be taken in leaving her very light forward and making it difficult to dive in a hurry.
12. This sinking is confirmed by Rohwer and Hammelchen.
13. Figures are from ‘Mediterranean and Middle East’ (Molony) Vol V. Submarines 11 ships of 60,126 tons, aircraft 10 ships of 38,123 tons,
miscellaneous 8 ships of 18,380 tons and surface ships 2 ships of 3,034 tons.
14. These are Bragadin’s figures.
15. War at Sea (Roskill) figures.
16. Assuming most of those scuttled were already damaged.

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