Torpedo Model: BR 21in Mark IV

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Related Types	Ship Classes Initially Use
Related Pages	Standard View \| Contemporaries
Torpedo Model	BR 21in Mark IV


Developed By Country	Great Britain
Designed By Body	Royal Navy Torpedo Factory
Design YMD	1912 Jan 01
In Service YMD	1916 Jan 01
Diameter	21in
Length	6.896m
Overall Mass	1.454Mg
Warhead Mass	234kg
Payload Percent	16.094
Explosive	TNT
Torpedo Propulsion	Wet Heater
Maximum	35kt
Range At Max Speed	7 300m
Speed For Max Range	25kt
Maximum Range	12 350m
Contemporary Torpedo Model	BR 21in Mark IV \| GR 50cm G7 \| FR 18in 450mm M12D \| BR 21in Mark II \| US 21in Bliss Leavitt Mark 9 \| RU 21in Circa 1917 \| BR 21in Mark II*** \| GR 60cm H8 \| JPN 21in 6 Nendo Shiki 1917 \| BR 21in Mark V
Torpedo Model Type	Coastal Forces \| Surface
Torpedo Size	21in
Intially Used By Ship Class	HMS Queen Elizabeth \| HMS M Class - Admiralty \| HMS Royal Sovereign \| HMS Lightfoot \| HMS Medea \| HMS M Class - Hawthorn \| HMS M Class - Thornycroft \| HMS M Class - Yarrow \| HMS M Class Repeat - Admiralty \| HMS M Class Repeats - Yarrow \| HMS M Class Repeats - Thornycroft \| HMS R Class \| HMS R Class - Yarrow \| HMS R Class - Thornycroft \| HMS Shakespeare \| HMS R Class Modified \| HMS Admiralty S \| HMS Campbell \| HMS Admiralty V \| HMS Admiralty W \| HMS Admiralty W Modified

Torpedo Armaments
1) Torpedo Armament	2) 1: Tube	3) 1: As Built Of Ship Class	4) 3: Primary Image	5) 3: Completed YMD
HMS Admiralty S Torpedo 4 X BR 21in Mark IV	4
HMS Admiralty V Torpedo 4 X BR 21in Mark IV	4
HMS Admiralty W Modified Torpedo 6 X BR 21in Mark IV	6
HMS Admiralty W Torpedo 6 X BR 21in Mark IV	6
HMS Campbell Torpedo 6 X BR 21in Mark IV	6
HMS Lightfoot Torpedo 4 X BR 21in Mark IV	4
HMS M Class - Admiralty Torpedo 4 X BR 21in Mark IV	4
HMS M Class - Hawthorn Torpedo 4 X BR 21in Mark IV	4
HMS M Class - Thornycroft Torpedo 4 X BR 21in Mark IV	4
HMS M Class - Yarrow Torpedo 4 X BR 21in Mark IV	4
HMS M Class Repeat - Admiralty Torpedo 4 X BR 21in Mark IV	4
HMS M Class Repeats - Thornycroft Torpedo 4 X BR 21in Mark IV	4
HMS M Class Repeats - Yarrow Torpedo 4 X BR 21in Mark IV	4
HMS Medea Torpedo 4 X BR 21in Mark IV	4
HMS Queen Elizabeth Torpedo 4 X BR 21in Mark IV	4	HMS Queen Elizabeth		1915 Jan 01
HMS R Class - Thornycroft Torpedo 4 X BR 21in Mark IV	4
HMS R Class - Yarrow Torpedo 4 X BR 21in Mark IV	4
HMS R Class Modified Torpedo 4 X BR 21in Mark IV	4
HMS R Class Torpedo 4 X BR 21in Mark IV	4
HMS Royal Sovereign Torpedo 4 X BR 21in Mark IV	4
HMS Shakespeare Torpedo 6 X BR 21in Mark IV	6

Documents
1) Covered By Document	2) 1:	3) 2: Page Number
Naval Weapons Of World War Two	N	84

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