Mark 20 torpedo
The Mark 20 torpedo was a US torpedo designed in 1943 but never used in service. Design was by Naval Torpedo Station Newport, the Electric Storage Battery Company and General Electric. This project was a continuation of the development of a submarine-launched, anti-surface ship torpedo originally designated Mark 2 in 1941 which was the second attempt to develop a torpedo of this type.
Mark 20 torpedo
- Name
- Mark 20 torpedo
- Field
- torpedo
- Region
- United States
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wikidata · Q15991071 · wikipedia · Mark 20 torpedo
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Overview
Overview
The earlier effort, designated Mark 1, in post-World War I years (1919–1931), was terminated after the torpedo produced proved unsatisfactory in speed and range. The Mark 20 never progressed beyond the development stage due to the success of the Mark 18 torpedo, however, 20 units were produced by General Electric for testing purposes.
Key facts
Key facts
• Name — Mark 20 torpedo • Origin — United States • Type — Anti-surface ship torpedo • Is Ranged — yes • Is Explosive — yes • Is Missile — yes • Service — never in service • Designer — Naval Torpedo Station Newport Electric Storage Battery Company General Electric • Manufacturer — General Electric • Design Date — 1943 • Number — 20 • Weight — approx. 3100 pounds • Length — 246 inches • Diameter — 21 inches • Range — 3500 yards • Filling — Mk 20, TNT • Filling Weight — 500 pounds • Detonation — none assigned • Engine — Electric • Speed — 33 knots • Guidance — Gyroscope • Launch Platform — Submarines
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- United States
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The biographical narrative on this page is based on the Wikipedia article Mark 20 torpedo, revision 1285837624 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
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