18-in Mark VI Torpedo (UK): Difference between revisions

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==Development and History==
==Development and History==
A single one was built in 1904.  It was one foot longer than the [[18-in R.G.F. Mark V* Torpedo|Mark V*]] and could take 2000 psi.  Anticipated speeds were 27 knots for 2,000 yards or 23.75 knots for 3,000 yards.{{ARTS1904|p. vi}}
A single one was built in 1904.  It was one foot longer than the [[18-in Mark V* Torpedo (UK)|Mark V*]] and could take 2000 psi.  Anticipated speeds were 27 knots for 2,000 yards or 23.75 knots for 3,000 yards.{{ARTS1904|p. vi}}


Orders and production followed.
Orders and production followed.
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* C.G. distance from tip of shaft, 60 pounds air: 114.35 inches
* C.G. distance from tip of shaft, 60 pounds air: 114.35 inches
* Warhead:  200 pounds wet guncotton
* Warhead:  200 pounds wet guncotton
It carried a charge of 170 pounds, 15 ounces – the same as in the [[18-in R.G.F. Mark III Torpedo|Mark III torpedo]].
It carried a charge of 170 pounds, 15 ounces – the same as in the [[18-in Mark III Torpedo (UK)|Mark III torpedo]].


It had a Brotherhood engine of 3.25x3 inches.
It had a Brotherhood engine of 3.25x3 inches.
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==Mark VI==
==Mark VI==
The first order was made in the 1906-07 programme, for 31 Hook Bracket torpedoes.{{ARTS1906|p. 8}}
The first order was made in the 1906-07 programme, for 31 Hook Bracket torpedoes and 336 Side Lug models, split between Long Range and Short Range configurations..{{ARTS1906|p. 8}}
 
In 1919, 70 of 97 remaining Mark VI H.B. and S.L. torpedoes were to be broken up.{{ARTS1919|p. 12}}
 
===Mark VI G.S.===
These were fitted with guide strips, perhaps allowing fire from the beam tubes of [["E" Class Submarine (1912)|"E" Class submarines]].  They were passed at 33-34 knots to 1,000 yards, with a speed drop not to exceed 1 knot.{{ARTS1913|p. 12}}


==Mark VI*==
==Mark VI*==
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In 1907-08, seven H.B. and 74 S.L. torpedoes were ordered.{{ARTS1907|p. 8}}
In 1907-08, seven H.B. and 74 S.L. torpedoes were ordered.{{ARTS1907|p. 8}}
In 1919, it was approved to break up 34 of 54 remaining H.B. and S.L. torpedoes.{{ARTS1919|p. 12}}


===Mark VI* H.===
===Mark VI* H.===
Come 1908, they were being converted to use heaters.  That year, 17 H.B. models were to converted, and 12 of the S.L. torpedoes had been done.{{ARTS1908|p. 7}}
Come 1908, the Mark VI* torpedoes were being converted to employ heaters.  That year, 17 H.B. models were to converted, and 12 of the S.L. torpedoes had been done.{{ARTS1908|p. 7}}


By the 1908-09, [[18-in R.G.F. Mark VII Torpedo|Mark VII variants]] were being ordered for production.
Its overall length including 4.5-in long pistol was 17 feet, 7.44 inches (see Plate).{{ARTS1908|p. 18}}


===Mark VI* H.===
By the 1908-09, [[18-in Mark VII Torpedo (UK)|Mark VII variants]] were being ordered for production.
Its overall length including 4.5-in long pistol was 17 feet, 7.44 inches (see Plate).{{ARTS1908|p. 18}}
 
In 1919, it was approved to break up all 41 remaining specimens.{{ARTS1919|p. 12}}


==Mark VI**==
==Mark VI**==
In 1909-10, 53 Hook Bracket models were converted to heaters, becoming Mark VI** H. H.B.s.{{ARTS1909|p. 7}}
===Mark VI** H.===
In 1909, the  H.B. variety was making 28-30 knots to 6,000 yards.{{ARTS1909|p. 11}}
In 1913, these, along with VII*, VII** and VIII** H. torpedoes being re-allocated to battleships between {{UK-Dreadnought}} and {{UK-1Neptune}}, inclusive.{{ARTS1913|p. 8}}


In 1909-10, 53 Hook Bracket models were converted to heaters, becoming Mark VI** H. H.B.s.{{ARTS1909|p. 7}}
In 1919, it was approved to break up 50 of 129 remaining VI** H. and VI*** H. torpedoes.{{ARTS1919|p. 12}}
 
==Mark VI***==
 
===Mark VI*** H.===
[[File:ARTS1910Plate6a.jpg|thumb|600px|'''18-in R.G.F. Mark VI*** Heater Torpedo'''{{ARTS1910|Plate 6}}]]
In 1913, these, along with VII*, VII** and VIII* H. torpedoes being re-allocated to battleships between {{UK-Dreadnought}} and {{UK-1Neptune}}, inclusive.{{ARTS1913|p. 8}}
 
In 1919, it was approved to break up 50 of 129 remaining VI** H. and VI*** H. torpedoes.{{ARTS1919|p. 12}}


==Footnotes==
==Footnotes==

Latest revision as of 19:10, 10 November 2016

18-in R.G.F. Mark VI** Heater Torpedo (top)[1]
18-in R.G.F. Mark VI* H.[2]

The 18-in R.G.F. Mark VI Torpedo was a British torpedo developed at the Royal Gun Factory in 1904.[3]

Development and History

A single one was built in 1904. It was one foot longer than the Mark V* and could take 2000 psi. Anticipated speeds were 27 knots for 2,000 yards or 23.75 knots for 3,000 yards.[4]

Orders and production followed.

Particulars

Mark VI

The first order was made in the 1906-07 programme, for 31 Hook Bracket torpedoes and 336 Side Lug models, split between Long Range and Short Range configurations..[5]

In 1919, 70 of 97 remaining Mark VI H.B. and S.L. torpedoes were to be broken up.[6]

Mark VI G.S.

These were fitted with guide strips, perhaps allowing fire from the beam tubes of "E" Class submarines. They were passed at 33-34 knots to 1,000 yards, with a speed drop not to exceed 1 knot.[7]

Mark VI*

The first order was made in the 1906-07 programme, for 336 Side Lug torpedoes, some of them set for S.R. and some for L.R..[8]

In 1907-08, seven H.B. and 74 S.L. torpedoes were ordered.[9]

In 1919, it was approved to break up 34 of 54 remaining H.B. and S.L. torpedoes.[10]

Mark VI* H.

Come 1908, the Mark VI* torpedoes were being converted to employ heaters. That year, 17 H.B. models were to converted, and 12 of the S.L. torpedoes had been done.[11]

Its overall length including 4.5-in long pistol was 17 feet, 7.44 inches (see Plate).[12]

By the 1908-09, Mark VII variants were being ordered for production.

In 1919, it was approved to break up all 41 remaining specimens.[13]

Mark VI**

In 1909-10, 53 Hook Bracket models were converted to heaters, becoming Mark VI** H. H.B.s.[14]

Mark VI** H.

In 1909, the H.B. variety was making 28-30 knots to 6,000 yards.[15]

In 1913, these, along with VII*, VII** and VIII** H. torpedoes being re-allocated to battleships between Dreadnought and Neptune, inclusive.[16]

In 1919, it was approved to break up 50 of 129 remaining VI** H. and VI*** H. torpedoes.[17]

Mark VI***

Mark VI*** H.

18-in R.G.F. Mark VI*** Heater Torpedo[18]

In 1913, these, along with VII*, VII** and VIII* H. torpedoes being re-allocated to battleships between Dreadnought and Neptune, inclusive.[19]

In 1919, it was approved to break up 50 of 129 remaining VI** H. and VI*** H. torpedoes.[20]

Footnotes

  1. ↑ Annual Report of the Torpedo School, 1909. Plate 2.
  2. ↑ Annual Report of the Torpedo School, 1908. Plate 11.
  3. ↑ Annual Report of the Torpedo School, 1904. p. vi.
  4. ↑ Annual Report of the Torpedo School, 1904. p. vi.
  5. ↑ Annual Report of the Torpedo School, 1906. p. 8.
  6. ↑ Annual Report of the Torpedo School, 1919. p. 12.
  7. ↑ Annual Report of the Torpedo School, 1913. p. 12.
  8. ↑ Annual Report of the Torpedo School, 1906. p. 8.
  9. ↑ Annual Report of the Torpedo School, 1907. p. 8.
  10. ↑ Annual Report of the Torpedo School, 1919. p. 12.
  11. ↑ Annual Report of the Torpedo School, 1908. p. 7.
  12. ↑ Annual Report of the Torpedo School, 1908. p. 18.
  13. ↑ Annual Report of the Torpedo School, 1919. p. 12.
  14. ↑ Annual Report of the Torpedo School, 1909. p. 7.
  15. ↑ Annual Report of the Torpedo School, 1909. p. 11.
  16. ↑ Annual Report of the Torpedo School, 1913. p. 8.
  17. ↑ Annual Report of the Torpedo School, 1919. p. 12.
  18. ↑ Annual Report of the Torpedo School, 1910. Plate 6.
  19. ↑ Annual Report of the Torpedo School, 1913. p. 8.
  20. ↑ Annual Report of the Torpedo School, 1919. p. 12.

Bibliography

See Also

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