HMS Seymour, Parker-class flotilla leader. ©Warshipsresearch.blogspot.com
HMS Wakeful, Admiralty W-class. ©Warshipsresearch.blogspot.com
HMS Amazon. ©Warshipsresearch.blogspot.com
An item reported that the British destroyer HMS Whirlwind (1) was torpedoed by a enemy submarine [U-34 (2)] on 5 July in the Western Approaches and had to be sunk by HMS Westcott.(3) Of her crew were 57 men killed and 15 men (including 2 officers) wounded.
Notes
1. Admiralty W-class destroyer preceded by S- an Parker-classes succeeded by Thornycroft type destroyer leaders Ambuscade and Amazon, ordered on 9 December 1916, laid down by Swan Hunter&Wigham Richardson, Wallend in May 1917, launched on 15 December 1917 and torpedoed on 5 July 1940 by German submarine U-34 and lost.
2. Type VIIA submarine. Ordered on 25 March 1934, laid down with yard number 557 by Germaniawerft, Kiel, Germany on 15 September 1935, launched on 17 July 1936, commissioned on 12 September 1936, sunk due to a collission with the U-boat tender Lech in the Baltic on 5 August 1943. salvaged on 5 August 1943 and stricken on 8 September 1934
3. Admiralty W-class destroyerpreceded by S- an Parker-classes succeeded by Thornycroft type destroyer leaders Ambuscade and Amazon, ordered in December 1916, laid down by William Denny and Brothers Limited, Dumbarton, Scotland on 30 March 1917, launched on 14 February 1918, commissioned on 12 April 1918, converted into a long-range escort in 1943, de commissioned on 26 June 1945, sold to BISCO and broken up in 1946.
Source
National Archive UK. CAB-66-9-42.