21-in Weymouth Mark III Torpedo

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The 21-in Weymouth Mark III Torpedo was a heater torpedo built by Whitehead. The company loaned a single experimental torpedo to the Royal Navy in 1913.[1]

Development and History

At the start of the war, all 21-in Whitehead torpedoes in England were purchased. Two Weymouth Mark IIIs intended for Turkey were given to Agincourt, but her Elswick type submerged tubes required the Mark III torpedoes to be sawn off to 6.35m by removing a section at the rear of the head and were settable to:[2]

  • 41 knots to 1,000 metres
  • 36 knots to 3,500 metres
  • 27 knots to 6,000 metres

Mark III

Mark III*

A single example of this torpedo was snapped up at the start of the war, and was sent to Loch Long for trial.[3]

Footnotes

  1. ↑ Annual Report of the Torpedo School, 1913. p. 8.
  2. ↑ Annual Report of the Torpedo School, 1914. pp. 10-11.
  3. ↑ Annual Report of the Torpedo School, 1914. p. 10.

Bibliography

See Also

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