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Germany
PzKpfw II Ausf a1,a2,a3 (Panzer II)
Ordnance classification - SdKfz 121

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Photo of PzKpfw II Ausf a1,a2,a3 (Panzer II)

General Details
Specifications
Operational Date(s)1935 - 1945
Ordnance classificationSdKfz 121
Quantity Produced75
Weightunknown
Crew3
M.G's small1
M.G's large(>10mm)n/a
Length4.38 mtr
Width2.14 mtr
Height1.95 mtr
Engine Details/Performance
Max Road Speed25 mph
Max Cross Country Speed11 mph
Range Road125 miles
Range Cross Countryunknown
Fuel TypePetrol
Fuel Capacityunknown
Horse Power130 hp
Power/Weightunknown
General Information

Armour Details
Turret
Front13mm@45°(18mm)
Side13mm@22°(14mm)
Rear13mm@22°(14mm)
Top8mm@85°(8mm)
Superstructure
Front13mm@(13mm)
Side13mm@(13mm)
Rear13mm@(13mm)
Top10mm@70°(11mm)
Hull
Front13mm@45°(18mm)
Side13mm@(13mm)
Rear13mm@(13mm)
Top5mm@90°(5mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 18 mm - Minimum 5 mm



Weapon Details
Flag
2.0cm KwK 30 L/55
2.0cm Kampfwagenkanone 30 L/55
(translates as Tank Gun)
Blank
History
Used on the Panzer II.
ManufacturerMauser and Rheinmetall-Borsig
Manufactured1935 - 1945
Calibre20mm
LengthL/55
Rate of Fire120 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
2.0cm PzGr 39(AP)
20mm 0.12Kg 899M/Sec
Quoted Penetration 23mm @ 100mtr/30° ( ≈ 26mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.12 0.25 0.59 1.68
Penetration(mm@30°) 18 13 9 5
Penetration(mm@0°) 21 16 11 6
Hit Probability(%) 98 98 98 81


 
2.0cm PzGr 40(APCR)
20mm 0.115Kg 1060M/Sec
Quoted Penetration 40mm @ 100mtr/0° ( ≈ 40mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.1 0.21 0.47 1.26 2.88 7.67
Penetration(mm@30°) 35 31 25 17 10 4
Penetration(mm@0°) 41 36 30 20 12 5
Hit Probability(%) 98 98 98 93 34 2



2 cm Sprgr. 39(HE)
20mm 0.132Kg 995M/Sec 0.006Kg explosive
Maximum Range 2000 Mtr
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 2.03
Burst radius Infantry in open 99% kill0 mtr Burst radius Infantry in open 66% kill0 mtr
Burst radius Infantry in open 33% kill1 mtr  Armour Penetration inc roof at 1 mtr0 mm
An explosion within 0 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 1 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.

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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