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France
Char B1-Bis

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The Char B1-Bis was designed in 1936, manufactured by Renault and others and was in use from 1937.

Flag of World War 2 France
Photo of Char B1-Bis

General Details
Specifications
Operational Date(s)1937
Quantity Produced369
Weight32 tonne
Crew4
M.G's small2
M.G's large(>10mm)n/a
Length6.44 mtr
Width2.52 mtr
Height2.82 mtr
Engine Details/Performance
Max Road Speed17 mph
Max Cross Country Speed13 mph
Range Road112 miles
Range Cross Country44 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power272 hp
Power/Weight8 hp/tonne
General Information
The Char B1-Bis was designed in 1936, manufactured by Renault and others and was in use from 1937.

The vehicle was powered by Renault '6 cylinder 16.5 litre' petrol powerplant producing 272 HP which could drive the vehicle on roads at up to 17 mph with a range of about 112 miles before refuelling. Its cross country performance was good providing a max speed of about 13 mph and a range of about 44 miles.

It was armed with 2 light machine guns which were Mitrailleuse modèle 1931s. Its main armament consisted of a 47 mm SA 35 which could penetrate 46 mm of flat plate at 800 metres Its main armament consisted and a 75 mm SA M1935 L/17.1 which could penetrate 37 mm of flat plate at 800 metres.


Armour Details
Turret
Front55mm@(55mm)
Side46mm@22°(50mm)
Rear46mm@22°(50mm)
Top30mm@80°(30mm)
Superstructure
Front60mm@20°(64mm)
Side60mm@(60mm)
Rear55mm@(55mm)
Top25mm@85°(25mm)
Hull
Front60mm@45°(85mm)
Side60mm@(60mm)
Rear55mm@43°(75mm)
Top20mm@90°(20mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 85 mm - Minimum 20 mm



Weapon Details
Flag
Mitrailleuse modèle 1931
(Machine Gun) x 2
Blank
photo of Mitrailleuse modèle 1931 from Reibel from Wikipedia
History
Designed by Lt Colonel Reibel, the FM 24/29 was developed into a heavier machine gun capable of relatively sustained fire, by giving it an extremely thick and massive barrel, to act as a heat sink.
ManufacturerReibel
Manufactured1932 - 1945
Calibre7.50mm
LengthL/80
Rate of Fire450 rpm
Number of Rounds 4800
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
7.5 MAS
(AP Standard Small Arms)
7.50mm 0.009Kg 820M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.15 0.36 1.2
Penetration(mm@30°) 10 7 4
Penetration(mm@0°) 12 9 5
Hit Probability(%) 98 98 96


 
7.5 MAS
(BALL Standard Small Arms)
7.50mm 0.009Kg 820M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.15
Penetration(mm@30°) 1
Penetration(mm@0°) 2
Hit Probability(%) 98


Weapon Details
Flag
47 mm SA 35
(Tank Gun)
Blank
Calibre47mm
LengthL/32
Number of Rounds 50
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP
(AP Armor Piercing)
47mm 1.63Kg 670M/Sec
Quoted Penetration 40mm @ 400mtr/30° ( ≈ 46mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.15 0.31 0.65 1.44 2.41 3.62 5.2 7.33
Penetration(mm@30°) 59 54 48 39 32 26 20 15
Penetration(mm@0°) 69 63 56 46 38 31 24 18
Hit Probability(%) 98 98 98 88 48 22 6 2



HE
(HE High Explosive)
47mm 1.41Kg 590M/Sec 0.142Kg explosive
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.17 0.35 0.74 1.63 2.73 4.12 5.91 8.31
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.17 0.35 0.74 1.63 2.73 4.12 5.91 8.31
Hit Probability(%) 98 98 98 81 39 15 3 2
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill2 mtr Burst radius Infantry in open 66% kill4 mtr
Burst radius Infantry in open 33% kill11 mtr  Armour Penetration inc roof at 1 mtr0 mm
An explosion within 2 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 4 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 11 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 1 mtr of an armoured vehicle will not cause any significant armour damage.


Weapon Details
Flag
75 mm SA M1935 L/17.1 Blank
Calibre75mm
LengthL/17
Number of Rounds 74
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Obus de rupture Mle.1910M
(AP Armor Piercing)
75mm 6Kg 300M/Sec
Quoted Penetration 40mm @ 400mtr/30° ( ≈ 46mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.34 0.68 1.41 2.99 4.76 6.78 9.09 11.76
Penetration(mm@30°) 43 39 36 32 27 24 20 17
Penetration(mm@0°) 50 46 42 37 32 28 24 20
Hit Probability(%) 98 98 88 29 8 3 1 0



Obus de rupture Mle.1910M
(HE High Explosive)
75mm 6Kg 250M/Sec 0.740Kg explosive
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.41 0.82 1.69 3.58 5.71 8.14 10.91 14.13
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.41 0.82 1.69 3.58 5.71 8.14 10.91 14.13
Hit Probability(%) 98 98 81 22 3 2 0 0
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill3 mtr Burst radius Infantry in open 66% kill7 mtr
Burst radius Infantry in open 33% kill18 mtr  Armour Penetration inc roof at 1 mtr2 mm
An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 7 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 18 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 1 mtr of an armoured vehicle will penetrate 2 mm of the tank armour including the roof.

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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