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Cruiser Mk VI (Crusader I A.A.)

General Details
Specifications
Manufacture Date(s)1942
Quantity Produced0
Weightunknown
Crew3
M.G's small0
M.G's large(>10mm)0
Length6.05 mtr
Width2.66 mtr
Height2.62 mtr
Engine Details/Performance
Max Road Speed28 mph
Max Cross Country Speed20 mph
Range Road110 miles
Range Cross Country85 miles
Fuel TypeUnknown
Fuel Capacity120 gal
Horse Power340 hp
Power/Weightunknown
General Information
The Crusader tank was a redesigned A13 Mk III as a heavy cruiser tank that could rapidly move and provide good A/T performance.

The vehicle was designed to use the the Liberty 340hp engine driving the tracks, towards the main front idler over 5 evenly spaced large road wheels, round the idler and back under the roadwheels in the standard Christie style.

The Crusader was quite fast although heavier than the A13 , the Mk I AA turret was a plain shape with the 40mm Bofors AA gun. The auxiliary machine gun turret was removed.

Armour Details
Turret
Front49mm@7°(49mm)
Side24mm@45°(34mm)
Rear30mm@32°(35mm)
Top12mm@90°(12 mm)
Superstructure
Front20mm@60°(40mm)
Side14mm@0°(14mm)
Rear14mm@11°(14mm)
Top7mm@90°(7 mm)
Hull
Front20mm@45°(28mm)
Side14mm@0°(14mm)
Rear14mm@11°(14mm)
Top7mm@90°(7 mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 49 mm - Minimum 7 mm


Weapon Details
Bofors 40mm AA
History

Designed in 1930 in Sweden the Bofors had two variants the L/60(really L/56) and the L/70 which didnt reach produsction till 1948, so the data shown is for the L/60 version.

Manufactured1932 - Present
Calibre40mm
LengthL/56
Rate of Fire120rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Quoted Penetration
 
AP(AP) 40mm 1.25Kg   823M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.12 0.26 0.54 1.22 2.08 3.24 4.86 7.3
Penetration(mm) 69 68 64 57 50 42 35 28
Hit Probability(%) 98 98 98 93 64 25 8 2

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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