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Submarine E7

Printed From: The Gallipoli Association
Category: Research
Forum Name: Submarines Research
Forum Description: This sub-forum is for research matters with regards to submarine warfare at Gallipoli/Dardanelles.
URL: http://forum.gallipoli-association.org/forum_posts.asp?TID=199
Printed Date: 20 Jul 2019 at 09:54
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Topic: Submarine E7
Posted By: Mal Murray
Subject: Submarine E7
Date Posted: 19 Sep 2010 at 18:27

HMS E7

 
http://en.wikipedia.org/wiki/File:HMS_E7_%28WWI%29.jpg">HMS E7
Career
Name: HMS E7
Builder: http://en.wikipedia.org/wiki/Chatham_Dockyard - HM Dockyard, Chatham
Cost: £105,700
Laid down: 30 March 1912
Commissioned: 16 March 1914
Fate: Scuttled, 4 September 1915
General characteristics
Class and type: http://en.wikipedia.org/wiki/British_E_class_submarine - E class http://en.wikipedia.org/wiki/Submarine - submarine
Displacement: 665 http://en.wikipedia.org/wiki/Long_ton - long tons (676  http://en.wikipedia.org/wiki/Tonne - t ) surfaced
796 long tons (809 t) submerged
Length: 178 ft (54 m)
Beam: 15 ft 5 in (4.70 m)
Propulsion: 2 × 1,750 hp (1,305 kW) diesel
2 × 600 hp (447 kW) electric
2 screws
Speed: 15 http://en.wikipedia.org/wiki/Knot_%28unit%29 - knots (28  http://en.wikipedia.org/wiki/Kilometres_per_hour - km/h ; 17  http://en.wikipedia.org/wiki/Miles_per_hour - mph ) surfaced
9.5 knots (17.6 km/h; 10.9 mph) submerged
Range: 3,000 nmi (5,600 km) at 10 kn (19 km/h; 12 mph)
65 nmi (120 km) at 5 kn (9.3 km/h; 5.8 mph)
Complement: 30
Armament: 4 × 18 in (457 mm) http://en.wikipedia.org/wiki/Torpedo_tube - torpedo tubes (1 bow, 2 beam, 1 stern)
 

HMS E7 was a http://en.wikipedia.org/wiki/British_E_class_submarine - British E class submarine built at http://en.wikipedia.org/wiki/Chatham_Dockyard - Chatham Dockyard . She was laid down on 30 March 1912 and was commissioned on 16 March 1914. She cost £105,700.

Service history

E7 had a short career in http://en.wikipedia.org/wiki/World_War_I - World War I . She took part in the Second http://en.wikipedia.org/wiki/Heligoland_Bight - Heligoland Bight Patrol along with http://en.wikipedia.org/wiki/HMS_E5 - E5 , http://en.wikipedia.org/wiki/HMS_D2 - D2 and http://en.wikipedia.org/wiki/HMS_D3 - D3 . She and the other submarines returned from the patrol on 18 August 1914. Then on 30 June 1915, E7 began a 24-day patrol in the http://en.wikipedia.org/wiki/Sea_of_Marmara - Sea of Marmara . She succeeded in sinking 13 ships and damaging many more.

The German Submarine UB-14 was in port of http://en.wikipedia.org/wiki/%C3%87anakkale - Chanak to await repairs. While there on 4 September, word came of the British submarine E7 entangled in Turkish http://en.wikipedia.org/wiki/Antisubmarine_net - antisubmarine nets off http://en.wikipedia.org/w/index.php?title=Nagara_Point&action=edit&redlink=1 - Nagara Point . The U-Boat's commander, Oberleutnant zur See http://en.wikipedia.org/wiki/Heino_von_Heimburg - Heino von Heimburg , http://en.wikipedia.org/wiki/Prince_Heinrich_of_Prussia - Prince Heinrich of Prussia , and UB-14's cook, a man by the name of Herzig, set out in a rowboat to observe the Turkish attempts to destroy E7. After several http://en.wikipedia.org/wiki/Mine_%28naval%29 - mines that formed part of the net had been detonated to no avail, http://en.wikipedia.org/wiki/HMS_E7#cite_note-0 - [Note 1] von Heimburg and his group rowed out and repeatedly dropped a plumb line until it contacted metal. Then, von Heimburg dropped a Turkish sinker mine with a shortened fuse right on top of E7. http://en.wikipedia.org/wiki/HMS_E7#cite_note-Stern-29-30-1 - [1] After the hand-dropped mine detonated too close for the British submarine's captain's comfort, he ordered his boat surfaced, abandoned, and http://en.wikipedia.org/wiki/Scuttling - scuttled . Between shellfire from the Turkish shore batteries and E7's scuttling charges, von Heimburg and company narrowly escaped harm. http://en.wikipedia.org/wiki/HMS_E7#cite_note-Stern-30-2 - [2] While most sources credit E7's sinking to the Turkish efforts, author Robert Stern contends that von Heimburg and UB-14 deserve partial credit for the demise of E7. http://en.wikipedia.org/wiki/HMS_E7#cite_note-Stern-38-3 - [3]

References

  1. http://en.wikipedia.org/wiki/HMS_E7#cite_ref-Stern-29-30_1-0 - ^ Stern, pp. 29–30.
  2. http://en.wikipedia.org/wiki/HMS_E7#cite_ref-Stern-30_2-0 - ^ Stern, p. 30.
  3. http://en.wikipedia.org/wiki/HMS_E7#cite_ref-Stern-38_3-0 - ^ Stern, p. 38.
  • Submarines, War Beneath The Sea, From 1776 To The Present Day, by Robert Hutchinson.
  • The Royal Navy Submarine Service, A Centennial History, by Antony Preston.

http://en.wikipedia.org/wiki/HMS_E7 - http://en.wikipedia.org/wiki/HMS_E7




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