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Britain
Inf Tank Mk III (Valentine VIII)

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The Inf Tank Mk III was designed in 1939 based on the existing fully tracked Valentine and was in use from 1943 to 1945.


General Details
Specifications
Operational Date(s)1943 - 1945
Quantity Produced0
Weight16 tonne
Crew4
M.G's small1
M.G's large(>10mm)n/a
Length5.46 mtr
Width2.65 mtr
Height2.31 mtr
Engine Details/Performance
Max Road Speed15 mph
Max Cross Country Speed8 mph
Range Road0 miles
Range Cross Countryunknown
Fuel TypeDiesel
Fuel Capacityunknown
Horse Power165 hp
Power/Weight10 hp/tonne
General Information
The Inf Tank Mk III was designed in 1939 based on the existing fully tracked Valentine and was in use from 1943 to 1945.

The vehicle was powered by AEC 'A190' diesel powerplant producing 165 HP which could drive the vehicle on roads at up to 15 mph with a range of about 0 miles before refuelling. Its cross country performance was good providing a max speed of about 8 mph and a range of about 0 miles.

It was armed with 1 light machine gun. Its main armament consisted of an Ordnance Q.F. 6pdr 7cwt MKII MKIV which could penetrate 110 mm of flat plate at 100 metres

The Infantry tank MkIII the Valentine was a redesigned A10 to provide an infantry support tank which could move slowly with the infantry to provide AT and machine gun support.

The turret had power traverse with a 6pdr A/T gun. The armour was good for this size of vehicle. The Valentine VIII was the upgraded Valentine III which had a larger turret to accomodate a extra crew member.

Armour Details
Turret
Front65mm@(65mm)
Side60mm@(60mm)
Rear60mm@(60mm)
Top10mm@90°(10mm)
Superstructure
Front30mm@68°(80mm)
Side60mm@(60mm)
Rear60mm@(60mm)
Top10mm@90°(10mm)
Hull
Front60mm@21°(64mm)
Side60mm@(60mm)
Rear60mm@(60mm)
Top10mm@90°(10mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 80 mm - Minimum 10 mm



Weapon Details
Flag
Ordnance Q.F. 6pdr 7cwt MKII MKIV Blank
photo of Ordnance Q.F. 6pdr 7cwt MKII MKIV from Wikipedia
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.
Manufactured1942 - 1945
Calibre57mm
LengthL/43
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP(AP)
57mm 2.84Kg 900M/Sec
Quoted Penetration 68mm@915m
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.11 0.23 0.48 1.03 1.69 2.47 3.42 4.61
Penetration(mm@30°) 95 87 77 66 56 46 37 29
Penetration(mm@0°) 110 101 90 77 65 54 43 34
Hit Probability(%) 98 98 98 98 81 48 25 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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