Difference between revisions of "6pdr 7cwt QF Mk IIA (57 mm)"

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== History ==
 
== History ==
The 6-pounder 7-centum-weight Mark IIA is a variant of the British Army's 6-pounder Mark II. While the 6-pounder gun was a common naval caliber of the time, the British Army only began considering the design in 1938 when they realized their [[QF 2-pounder (40 mm)|QF 2-pounders]] were likely to become obsolete soon after entering service. Due to the loss of British Army equipment during the evacuation at Dunkirk in June 1940, the development and the introduction of the 6-pounder were delayed with it only entering service in 1942. The Mark II, the main variant of the design, had an L/43 barrel. The Mark IIA combined this army cannon with the automatic loading system of the [[Molins Class M (57 mm)|Molins Class M]] aircraft cannon to provide more firepower on Motor Torpedo Boats such as the [[Fairmile D (5001)|Fairmile D]] against German barges and similar small vessels.  
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The 6-pounder 7-centum-weight Mark IIA is a variant of the British Army's 6-pounder Mark II. While the 6-pounder gun was a common naval calibre of the time, the British Army only began considering the design in 1938 when they realized their [[QF 2-pounder (40 mm)|QF 2-pounders]] were likely to become obsolete soon after entering service. Due to the loss of British Army equipment during the evacuation at Dunkirk in June 1940, the development and the introduction of the 6-pounder were delayed with it only entering service in 1942. The Mark II, the main variant of the design, had an L/43 barrel. The Mark IIA combined this army cannon with the automatic loading system of the [[Molins Class M (57 mm)|Molins Class M]] aircraft cannon to provide more firepower on Motor Torpedo Boats such as the [[Fairmile D (5001)|Fairmile D]] against German barges and similar small vessels.
  
The Mk IIA has seven rounds in the auto-loading system, six rounds in the feed system, and one in the chamber. However, the gun, which was semi-automatic unlike the Molins, can only fire six rounds. The last round is left un-fired to prevent the breech from being worked manually which would be needed if the feed system was empty. A wet mount variant without the auto-loader was developed but remained a prototype.  
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The Mk IIA had seven rounds in the auto-loading system: six rounds in the feed system, and one in the chamber. However, the gun, which was semi-automatic unlike the Molins, could only fire six rounds. The last round was left un-fired to prevent the breech from being worked manually which would be needed if the feed system was empty. A wet mount variant without the auto-loader was developed but remained a prototype.
  
 
== Media ==
 
== Media ==
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== See also ==
 
== See also ==
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<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
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* ''references to approximate analogues by other nations and research trees.'' -->
  
 
* [[6pdr OQF Mk.III (57 mm)]] - Tank version of the Mark II.
 
* [[6pdr OQF Mk.III (57 mm)]] - Tank version of the Mark II.

Latest revision as of 07:40, 19 July 2023

Description

Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.

Vehicles equipped with this weapon

General info

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Available ammunition

Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).

Comparison with analogues

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Usage in battles

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Pros and cons

Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.

Pros:

Cons:

History

The 6-pounder 7-centum-weight Mark IIA is a variant of the British Army's 6-pounder Mark II. While the 6-pounder gun was a common naval calibre of the time, the British Army only began considering the design in 1938 when they realized their QF 2-pounders were likely to become obsolete soon after entering service. Due to the loss of British Army equipment during the evacuation at Dunkirk in June 1940, the development and the introduction of the 6-pounder were delayed with it only entering service in 1942. The Mark II, the main variant of the design, had an L/43 barrel. The Mark IIA combined this army cannon with the automatic loading system of the Molins Class M aircraft cannon to provide more firepower on Motor Torpedo Boats such as the Fairmile D against German barges and similar small vessels.

The Mk IIA had seven rounds in the auto-loading system: six rounds in the feed system, and one in the chamber. However, the gun, which was semi-automatic unlike the Molins, could only fire six rounds. The last round was left un-fired to prevent the breech from being worked manually which would be needed if the feed system was empty. A wet mount variant without the auto-loader was developed but remained a prototype.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

External links

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  • topic on the official game forum;
  • other literature.


Britain naval cannons
20 mm  20 mm/70 Oerlikon Mk.II · 20 mm/70 Oerlikon Mark V · 20 mm/70 Oerlikon Mark 24
40 mm  2pdr QF Mk.IIc · 2pdr QF Mk.VIII · 2pdr Rolls Royce · QF Mark V · QF Mark VII · QF STAAG Mark II
47 mm  3 pdr QF Hotchkiss
57 mm  6pdr 7cwt QF Mk IIA · 6pdr QF Mk.V
76 mm  3 inch 12pdr 12 cwt QF Mk.V · 3 inch/70 Mark 6 · 76 mm/45 QF 3in 20cwt HA Mark I · 76 mm/50 12pdr 18cwt QF Mark I · OQF 3in 20cwt
102 mm  4 inch/40 QF mark III · 4 in QF Mark V · 4 inch/45 Mark XVI · 4 inch/50 BL Mark VII · BL Mark IX
114 mm  4.5 inch/45 QF Mark IV · 4.5 inch/45 QF Mark V · 8cwt QF Mk I
120 mm  4.7 inch/45 Mk.XII
133 mm  5.25 inch/50 QF Mark I
152 mm  6 inch/45 BL Mark VII · 6 inch/45 BL Mark XII · 6 inch/50 BL Mark XXIII · 6 inch/50 QF Mark N5
190 mm  7.5 inch/45 BL Mk.VI
203 mm  8 inch/50 Mark VIII
305 mm  305 mm/45 Mark X · 12 inch/50 Mark XI
343 mm  13.5 inch/45 Mark 5(H) · 13.5 inch/45 Mark 5(L)
381 mm  15 inch/42 BL Mark I
  Foreign:
20 mm  Rh202 (Germany)
40 mm  Bofors L/60 Mark 2 (USA) · Bofors L/60 Mark 3 (USA)
76 mm  3 inch Mk.33 (USA) · 76 mm/62 OTO-Melara Compact (Italy)