21-in Mark VI Torpedo (UK)
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The 21-in R.N.T.F. Mark VI Torpedo was a British torpedo being developed at the Royal Navy Torpedo Factory in 1919. The design was abandoned early in testing.
Development and History
Two experimental torpedoes were run at loch Long and from a special, elongated tube in Acasta in 1919. They were failures on trial, and the type was abandoned for heavy rolling and bad direction.[1]
Mark VI
The average weight all-on for the two test torpedoes was 4,554 pounds, yielding an average negative 1,117 pounds with warhead fitted. This was so heavy that it prompted calls to explore 23, 24, 25 or 26-in torpedo designs for future.[2]
Footnotes
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