2.0cm Flak 38 L/112.5 2.0cm Flugabwehrkanone 38 L/112.5
(translates as Anti Aircraft Gun)
History
Originally developed for the Luftwaffe to replace the slower firing 2cm Flak 30, this became the main low level Anti Aicraft gun in the German Forces.
The Flakvierling was a four barreled version that had a rate of fire of 1680 rounds per minute and was mounted on a variety of vehicles.
Manufacturer
Mauser-Werke
Manufactured
1940 - 1945
Calibre
20mm
Length
L/112
Rate of Fire
420 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)
100
200
400
800
1200
1600
2000
2400
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)
100
200
400
800
1200
1600
2000
2400
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)
1000
2000
3000
4000
5000
6000
7000
8000
Flight Time(Secs)
2.03
Burst radius Infantry in open 99% kill
0 mtr
Burst radius Infantry in open 66% kill
0 mtr
Burst radius Infantry in open 33% kill
1 mtr
Armour Penetration inc roof at 1 mtr
0 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.