21-in Mark I Torpedo (UK)
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R.G.F. Torpedoes Mark I and II, 1909[1]
The 21-in R.G.F. Mark I Torpedo was a British torpedo developed at the Royal Gun Factory.
Two experimental torpedoes were ordered for testing in 1908-09.[2]
They were first ordered for service in 1909-1910.[Citation needed]
Development and History
It was developed in parallel with the Mark II torpedo, which was longer.[Citation needed]
The Beagle class destroyers of the Third Destroyer Flotilla were the first ships to carry this weapon, being equipped in 1912.[3]
Mark I
Its overall length including 4.5-in long pistol was 17 feet, 10.5 inches (see Plate), identical to the Weymouth Mark I.[4]
Manufacture and Use
In 1909-1910, 66 side lug torpedoes were ordered.[Citation needed]
Footnotes
Bibliography
