3.7cm Flak 36/37 3.7cm Flugabwehrkanone 36/37
(translates as Anti Aircraft Gun)
History
Redesign of the 3.7cm Flak 18 to reduce overall weight and portability.
Manufacturer
Rheinmetal
Manufactured
1936 - 1945
Calibre
37mm
Length
L/85
Rate of Fire
820 rpm
Ammunition Details
Name/Id
Calibre Weight MVelocity
Explosive Content
3.7cm Pzgr Patr 18(AP)
37mm 0.68Kg 762M/Sec
Quoted Penetration 31mm @ 500mtr/30° ( ≈ 35mm/0°)
Range(Mtr)
100
200
400
800
1200
1600
2000
2400
Flight Time(Secs)
0.13
0.28
0.59
1.34
2.33
3.7
5.71
8.97
Penetration(mm@30°)
41
38
32
25
20
15
11
6
Penetration(mm@0°)
48
44
38
30
24
18
13
8
Hit Probability(%)
98
98
98
90
54
22
3
1
3.7cm Sprgr Patr 18(HE)
37mm 0.64Kg 820M/Sec
≈0.095Kg explosive
Maximum Range 6000 Mtr
Range(Mtr)
1000
2000
3000
4000
5000
6000
7000
8000
Flight Time(Secs)
1.68
5.31
19.44
Burst radius Infantry in open 99% kill
2 mtr
Burst radius Infantry in open 66% kill
5 mtr
Burst radius Infantry in open 33% kill
13 mtr
Armour Penetration inc roof at 1 mtr
0 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 13 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.