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Inf Tank Mk III (Valentine IX)

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The Inf Tank Mk III was designed in 1938 based on the existing fully tracked Valentine and was in use from 1943 to 1944.

Flag of World War 2 Britain
Photo of Inf Tank Mk III (Valentine IX)

General Details
Operational Date(s)1943 - 1944
Quantity Produced0
Weight16 tonne
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 Road90 miles
Range Cross Country36 miles
Fuel TypeDiesel
Fuel Capacity36 gal
Horse Power165 hp
Power/Weight10 hp/tonne
General Information
The Inf Tank Mk III was designed in 1938 based on the existing fully tracked Valentine and was in use from 1943 to 1944.

The vehicle was powered by GMC 'Diesel 166HP' diesel powerplant producing 165 HP which could drive the vehicle on roads at up to 15 mph with a range of about 90 miles before refuelling. Its cross country performance was adequate providing a max speed of about 8 mph and a range of about 36 miles.

It was armed with 1 light machine gun. Its main armament consisted of an Ordnance Q.F. 6pdr 7cwt MKI-III which could penetrate 73 mm of flat plate at 800 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 Valentine IX was the up gunned Valentine V which had a larger turret to accomodate a extra crew member, and had the GMC engine.

Armour Details
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 80 mm - Minimum 10 mm

Weapon Details
Ordnance Q.F. 6pdr 7cwt MKI-III
(Anti Tank Gun)
photo of Ordnance Q.F. 6pdr 7cwt MKI-III from Wikipedia
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
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
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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