Difference between revisions of "14-in Mark VIII Torpedo (UK)"
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* four G&B torpedoes were run for direction only in 46 degree water. | * four G&B torpedoes were run for direction only in 46 degree water. | ||
* thirteen G&B torpedoes averaged 25.53 knots in 54 degree water. | * thirteen G&B torpedoes averaged 25.53 knots in 54 degree water. | ||
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| + | ===1911=== | ||
| + | The torpedoes were obsoleted in 1911.{{UKAddenda1911TorpM1909III|p. 3}} | ||
==Footnotes== | ==Footnotes== | ||
Revision as of 14:55, 3 December 2012
The 14-in R.L. Mark VIII Torpedo was an early British torpedo manufactured first by the Royal Laboratory and later at the Royal Gun Factory when control of the Torpedo Factory at Woolwich was transferred. These torpedoes were now to be stamped "R.G.F" in lieu of "R.L.".[1]
Contents
Development and History
A gap in our primary source materials makes the genesis of the type difficult to state exactly, but it appears that a total 320 of them (called "Leeds torpedoes") had been ordered in 1888-9 and 1889-90 and been adjusted and accepted.[2]
1890
294 of the newest had been adjusted in 1890 and averaged 26.0 knots in 57 degree water, requiring on average 18 runs to be accepted.[3]
230 Mark VIII torpedoes under manufacture were adjusted at the Horsea range and were making 26 knots in 59 degree water. Individual torpedoes were requiring, on average, 16 test runs to be passed.[4] Why does this not agree?
Alterations in the Mark VIIIs were retrofitted to those already made, back to number 1579, but no change in name accompanied the eleven alterations listed.[5]
Mark VIII R.L. torpedoes were compared to Mark VIII Leeds torpedoes in different water temperatures, yielding similar results with perhaps a small edge to Leeds, as the 26 knots both delivered on average was in 57 degree water for Leeeds and 59 degree water for the R.L. torpedo. The R.L. torpedoes degraded from 26.4 knots in 67 degree water to 25.05 knots in 44 degree water.[6]
1891
90 Mark VIII R.G.F. torpedoes fitted for above-water fire from the previous year were adjusted and made 25.87 knots in 62 degree water. The 45 for submerged fire made 24.18 knots in 58 degree water. There were no further orders for 14-in torpedoes.[7]
50 Mark VIII torpedoes from Greenwood and Batley were ordered, and were to be completed by the next running season, indicating an increased capacity at G. & B. from the 20/year yield previously possible.[8]
1896
An extensive report on torpedoes being adjusted at the test ranges shows the Mark VIII is still in use in 1896.[9]
Mark VIII at Horsea, average speeds to 600 yards:
- nine R.G.F. torpedoes averaged 25.82 knots in 57.8 degree water.
- twenty-one R.L. torpedoes averaged 25.49 knots in 56.1 degree water.
- thirty-eight G&B torpedoes averaged 24.78 knots in 47 degree water.
Repaired Mark VIII at Horsea, average speeds to 600 yards:
- thirty-three R.L. torpedoes averaged 25.26 knots in 50.5 degree water.
- four R.L. torpedoes with Hook Brackets averaged 24.19 knots in 40.75 degree water.
- twenty-two G&B torpedoes averaged 25.09 knots in 52.5 degree water.
Mark VIII at Plymouth, average speeds to 600 yards:
- seven R.L. torpedoes averaged 26.15 knots in 56 degree water.
- five R.G.F. torpedoes averaged 26.1 knots in 48 degree water.
- four G&B torpedoes were run for direction only in 46 degree water.
- thirteen G&B torpedoes averaged 25.53 knots in 54 degree water.
1911
The torpedoes were obsoleted in 1911.[10]
Footnotes
- ↑ Annual Report of the Torpedo School, 1890. p. 19.
- ↑ Annual Report of the Torpedo School, 1890. p. 22.
- ↑ Annual Report of the Torpedo School, 1890. p. 19.
- ↑ Annual Report of the Torpedo School, 1890. p. 19.
- ↑ Annual Report of the Torpedo School, 1890. p. 19.
- ↑ Annual Report of the Torpedo School, 1890. p. 38.
- ↑ Annual Report of the Torpedo School, 1891. p. 23.
- ↑ Annual Report of the Torpedo School, 1891. p. 23.
- ↑ Annual Report of the Torpedo School, 1896. pp. 42-44.
- ↑ Addenda (1911) to Torpedo Manual, Vol. III, 1909. p. 3.
Bibliography
