18-in Weymouth Mark I Torpedo: Difference between revisions
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[[File:ARTS1913Plate1c.jpg|thumb|600px|'''18-in Weymouth Mark I*'''{{ARTS1913|Plate 1}}]] | [[File:ARTS1913Plate1c.jpg|thumb|600px|'''18-in Weymouth Mark I*'''{{ARTS1913|Plate 1}}]] | ||
34 of these were ordered from Whitehead in 1913-14, and by November 1913, 9 had been delivered.{{ARTS1913|p. 8}} | 34 of these were ordered from Whitehead in 1913-14, and by November 1913, 9 had been delivered.{{ARTS1913|p. 8}} | ||
The details are contained in Torpedo Orders 48 and 66 of July and September, 1913.{{ | The details are contained in Torpedo Orders 48 and 66 of July and September, 1913. They could to 39.5-40.5 knots to 1,500 yards and 28.5-29.5 knots to 4,000 yards. Whitehead actually tested them only to 1,500 yards on long range, requiring them to retain 650-750 pounds pressure and have used 18-20 ounces of fuel. A sampling of the weapons were run to 4,000 yards in Portland harbour from a hired steamer.{{ARTS1913|p. 11-12}} | ||
==Footnotes== | ==Footnotes== | ||
Revision as of 15:39, 30 November 2012
The 18-in Weymouth Mark I Torpedo was a heater torpedo built by Whitehead and ordered in small quantity in 1908-09.[3]
Development and History
In 1908-09, twenty S.L. units were ordered.[4]
In 1909, these twenty were returned to Whitehead for "radical alterations in the engines", as they had been found not to be strong enough.[5] By 1910, the re-engined weapons were passing their range tests nicely.[6]
Mark I
The warhead contained 161.75 pounds dry guncotton which weighed 198 pounds with 22.5 parts moisture.[7]
Its overall length including 4.5-in long pistol was 17 feet, 6 inches (see Plate).[8]
Mark I*
34 of these were ordered from Whitehead in 1913-14, and by November 1913, 9 had been delivered.[10] The details are contained in Torpedo Orders 48 and 66 of July and September, 1913. They could to 39.5-40.5 knots to 1,500 yards and 28.5-29.5 knots to 4,000 yards. Whitehead actually tested them only to 1,500 yards on long range, requiring them to retain 650-750 pounds pressure and have used 18-20 ounces of fuel. A sampling of the weapons were run to 4,000 yards in Portland harbour from a hired steamer.[11]
Footnotes
- ↑ Annual Report of the Torpedo School, 1909. Plate 2.
- ↑ Annual Report of the Torpedo School, 1908. Plate 12.
- ↑ Annual Report of the Torpedo School, 1908. p. 7.
- ↑ Annual Report of the Torpedo School, 1908. p. 7.
- ↑ Annual Report of the Torpedo School, 1909. p. 13.
- ↑ Annual Report of the Torpedo School, 1910. p. v.
- ↑ Annual Report of the Torpedo School, 1908. p. 10.
- ↑ Annual Report of the Torpedo School, 1908. p. 18.
- ↑ Annual Report of the Torpedo School, 1913. Plate 1.
- ↑ Annual Report of the Torpedo School, 1913. p. 8.
- ↑ Annual Report of the Torpedo School, 1913. p. 11-12.
Bibliography
