Blank blank WWII Vehicle and Gun Database
   
left corner World War 2 Tank and Gun Database corner lower right outer
   

USSR
IS I - 85

Share with Facebook
 

The IS I - 85 based on the existing IS and was in use from 1944.

Flag of World War 2 Union Soviet Socialist Republics

General Details
Specifications
Operational Date(s)1944
Ordnance classification
Quantity Produced0
Weightunknown
Crew4
M.G's small4
M.G's large(>10mm)n/a
Length8.40 mtr
Width3.15 mtr
Height2.74 mtr
Engine Details/Performance
Max Road Speed23 mph
Max Cross Country Speed12 mph
Range Road150 miles
Range Cross Country130 miles
Fuel TypeUnknown
Fuel Capacity115 gal
Horse Power513 hp
Power/Weightunknown
General Information
The IS I - 85 based on the existing IS and was in use from 1944.

It was armed with 4 light machine guns. Its main armament consisted of a 85 mm ZiS-S-53 M1939 L/55 which could penetrate 139 mm of flat plate at 800 metres


Armour Details
Turret
Front100mm@10°(102mm)
Side75mm@10°(76mm)
Rear50mm@10°(51mm)
Top35mm@90°(35mm)
Superstructure
Front120mm@45°(170mm)
Side90mm@30°(104mm)
Rear64mm@20°(68mm)
Top25mm@90°(25mm)
Hull
Front120mm@45°(170mm)
Side90mm@(90mm)
Rear64mm@(64mm)
Top25mm@90°(25mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 170 mm - Minimum 25 mm



Weapon Details
Flag
85 mm ZiS-S-53 M1939 L/55
(Tank Gun)
Blank
History
Developed from the 85 mm air defense gun M1939 (52-K) this was the heavier tank gun used in vehicles such as the T34/85
Manufactured1939 - 1945
Calibre85mm
LengthL/55
Rate of Fire10 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
85mm/L52 (D-5T)
(AP Armor Piercing)
85mm 9.2Kg 792M/Sec
Quoted Penetration 125mm @ 500mtr/30° ( ≈ 144mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.53 1.12 1.76 2.49 3.3 4.22
Penetration(mm@30°) 156 146 135 120 107 94 82 71
Penetration(mm@0°) 181 169 156 139 124 109 95 83
Hit Probability(%) 98 98 98 96 77 48 25 15


 
85mm/L52 (D-5T)
(APCR Armor Piercing Composite Rigid)
85mm 5.3Kg 1050M/Sec
Quoted Penetration 136mm @ 500mtr/30° ( ≈ 157mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.1 0.2 0.4 0.86 1.38 1.98 2.67 3.48
Penetration(mm@30°) 144 133 120 104 90 77 64 52
Penetration(mm@0°) 167 154 139 121 104 89 74 61
Hit Probability(%) 98 98 98 98 90 69 41 25



85mm/L52 (D-5T) HE
(HE High Explosive)
85mm 9.54Kg 793M/Sec 0.741Kg explosive
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.54 1.14 1.83 2.62 3.53 4.61
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.54 1.14 1.83 2.62 3.53 4.61
Hit Probability(%) 98 98 98 96 74 41 22 8
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill2 mtr Burst radius Infantry in open 66% kill5 mtr
Burst radius Infantry in open 33% kill14 mtr  Armour Penetration inc roof at 1 mtr2 mm
An explosion within 2 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 5 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 14 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.

© WWIITanks 1980-2024

VillageNet Hosting