File:WATU Raspberry diagram.svg

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Description
English: A diagram of "Raspberry", a tactic used in World War 2 by Allied escort ships to defend merchant convoys from German submarine attacks. This diagram is based on a diagram in Captain Gilbert Roberts R.N. and the Anti-U-Boat School by Mark Williams, p. 96.
  1. Under the cover of night, a U-boat sneaks into the convoy and torpedoes a merchant ship.
  2. The U-boat dives and turns around to escape from astern. The escort ships to the rear and the flanks of the convoy fall back to form a line behind the convoy.
  3. The line of escort ships trawl for the U-boat using sonar, and release depth charges when they find it.
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Author Kurzon

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29 May 2020

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Date/TimeThumbnailDimensionsUserComment
current11:58, 18 June 2020Thumbnail for version as of 11:58, 18 June 2020643 × 248 (72 KB)Kurzon..
11:55, 18 June 2020Thumbnail for version as of 11:55, 18 June 2020650 × 255 (72 KB)Kurzon...
10:20, 18 June 2020Thumbnail for version as of 10:20, 18 June 2020643 × 248 (72 KB)Kurzon...
09:30, 12 June 2020Thumbnail for version as of 09:30, 12 June 2020643 × 248 (71 KB)Kurzonchanged background to white (prev transparent)
09:28, 12 June 2020Thumbnail for version as of 09:28, 12 June 2020643 × 248 (71 KB)Kurzonadded scale
09:41, 2 June 2020Thumbnail for version as of 09:41, 2 June 2020590 × 248 (67 KB)Kurzon...
09:26, 2 June 2020Thumbnail for version as of 09:26, 2 June 2020590 × 248 (67 KB)KurzonAdded German cross to U-boat symbol. This will make it better if printed out in black and white.
16:32, 1 June 2020Thumbnail for version as of 16:32, 1 June 2020590 × 248 (62 KB)Kurzon...
16:24, 1 June 2020Thumbnail for version as of 16:24, 1 June 2020590 × 248 (263 KB)Kurzonchanged symbols, added color
10:27, 1 June 2020Thumbnail for version as of 10:27, 1 June 2020590 × 248 (247 KB)Kurzon...
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