Britain Carrier AEC 6pdr Gun Mk I (Deacon)

Tweet The Carrier AEC 6pdr Gun Mk I was designed in 1941, manufactured by Associated Equipment Company(AEC) based on the existing 4 x 4 drive Matador Artillery tractor and was in use from 1942 to 1945. General Details Specifications Operational Date(s) 1942 - 1945 Quantity Produced 175 Weight 12.2 tonne Crew 4 M.G's small n/a M.G's large(>10mm) n/a Length 6.49 mtr Width 2.77 mtr Height 2.92 mtr Engine Details/Performance Max Road Speed 19 mph Max Cross Country Speed 6 mph Range Road 174 miles Range Cross Country 78 miles Fuel Type Diesel Fuel Capacity unknown Horse Power 95 hp Power/Weight 7 hp/tonne General Information The Carrier AEC 6pdr Gun Mk I was designed in 1941, manufactured by Associated Equipment Company(AEC) based on the existing 4 x 4 drive Matador Artillery tractor and was in use from 1942 to 1945. The vehicle was powered by Associated Equipment Company(AEC) 'A173 6-cyl' diesel powerplant producing 95 HP which could drive the vehicle on roads at up to 19 mph with a range of about 174 miles before refuelling. Its cross country performance was adequate providing a max speed of about 6 mph and a range of about 78 miles. Its main armament consisted of an Ordnance Q.F. 6pdr 7cwt MKI-III which could penetrate 86 mm of flat plate at 400 metres The gun was enclosed by an armoured shield which was mounted on the flat bed towards the rear of the chassis. The conventional cab was replaced with an armoured box that covered the engine and the driver's position. Armour Details Turret Front 20mm @ 10° (20mm) Side 8mm @ 0° (8mm) Rear n/a Top 8mm @ 90° (8mm) Superstructure Front n/a Side n/a Rear n/a Top n/a Hull Front 20mm @ 0° (20mm) Side 8mm @ 0° (8mm) Rear 8mm @ 0° (8mm) Top 8mm @ 90° (8mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 20 mm - Minimum 8 mm Weapon Details Ordnance Q.F. 6pdr 7cwt MKI-III (Anti Tank Gun) History The 6pdr Mk II—differed from the pre-production Mk I in having a shorter L/43 barrel, because of shortage of suitable lathes. The subsequent Mk IV was fitted with an L/50 barrel, with muzzle brake. Manufactured 1942 - 1945 Calibre 57mm Length L/43   Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content Shot, AP, Mks 1 to 7 (AP Armor Piercing) 57mm 2.86Kg 853M/Sec Quoted Penetration 68mm@915m Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.12 0.24 0.5 1.09 1.78 2.61 3.61 4.86 Penetration(mm@30°) 90 83 74 63 53 44 35 28 Penetration(mm@0°) 105 96 86 73 62 51 41 33 Hit Probability(%) 98 98 98 98 77 41 22 8

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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