French 4.7"/50
Caliber = 12.0 cm (4.7 inch)
Shell weight = 28 kg (62 lbs)
Muzzle velocity = 809 m/s (2653 fps)
Relative ballistic performance: 0.83
Muzzle energy = 9.162 megajoules = 3376.0 foot-tons
Relative muzzle energy: 1.00
Barrel length: 50 calibers
Elevation Range
Time Velocity Fall Angle
2.5 deg 4300 meters
6.7 sec 532 m/s 3.3 deg
5.0 deg
7000 meters 12.5 sec 414 m/s 7.8 deg
7.5 deg 9000 meters 17.7 sec 350 m/s
12.9 deg
10.0 deg 10500 meters 22.6
sec 311 m/s 18.5 deg
12.5 deg
11800 meters 27.1 sec 288 m/s 24.1 deg
15.0 deg 12800 meters 31.4 sec 274 m/s
29.5 deg
20.0 deg 14500 meters 39.4
sec 262 m/s 39.4 deg
25.0 deg
15800 meters 46.9 sec 261 m/s 47.6 deg
30.0 deg 16700 meters 53.9 sec 267 m/s
54.1 deg
35.0 deg 17400 meters 60.6
sec 275 m/s 59.5 deg
40.0 deg
17700 meters 66.9 sec 284 m/s 63.7 deg
45.0 deg 17700 meters 72.9 sec 293 m/s
67.3 deg
50.0 deg 17300 meters 78.5
sec 302 m/s 70.3 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.90)
Maximum penetration: 28.16 cm
Elevation Range
Belt Deck
1.3 deg 2600 meters
20 cm
2.9 deg 4900 meters
15 cm
6.3 deg 8100 meters
10 cm
10.7 deg 10900 meters
... 2 cm
17.1 deg
13600 meters 5 cm
23.9 deg
15500 meters ... 4 cm
39.7 deg 17700 meters ...
6 cm
Maximum range = 17700 meters at 42.5 deg elevation