French 274mm/45 refurbished
Caliber = 27.4 cm (10.8 inch)
Shell weight = 320 kg (705 lbs)
Muzzle velocity = 770 m/s (2524 fps)
Relative ballistic performance: 0.96
Muzzle energy = 94.772 megajoules = 34923.5 foot-tons
Relative muzzle energy: 0.87
Barrel length: 45 calibers
Elevation Range
Time Velocity Fall Angle
2.5 deg 4700 meters
6.7 sec 644 m/s 2.9 deg
5.0 deg
8400 meters 13.0 sec 561 m/s 6.3 deg
7.5 deg 11500 meters 18.9 sec 504 m/s
10.0 deg
10.0 deg 14200 meters 24.5
sec 464 m/s 13.9 deg
12.5 deg
16500 meters 30.0 sec 435 m/s 18.2 deg
15.0 deg 18500 meters 35.2 sec 416 m/s
22.3 deg
20.0 deg 21900 meters 45.2
sec 395 m/s 30.4 deg
25.0 deg
24700 meters 54.6 sec 389 m/s 37.7 deg
30.0 deg 26900 meters 63.5 sec 393 m/s
44.0 deg
35.0 deg 28600 meters 72.0
sec 402 m/s 49.4 deg
40.0 deg
29600 meters 80.0 sec 413 m/s 54.0 deg
45.0 deg 30100 meters 87.6 sec 426 m/s
58.1 deg
50.0 deg 29800 meters 94.7
sec 438 m/s 61.9 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.95)
Maximum penetration: 54.47 cm
Elevation Range
Belt Deck
1.9 deg 3700 meters
45 cm
3.3 deg 6000 meters
40 cm
3.9 deg 6900 meters
... 2 cm
5.2 deg
8700 meters 35 cm
7.6 deg
11600 meters ... 4 cm
7.7 deg 11700 meters 30 cm
11.4 deg 15500 meters 25 cm
12.2 deg 16200 meters ...
6 cm
17.3 deg 20100 meters
20 cm
18.0 deg 20600 meters
... 8 cm
22.1 deg
23200 meters ... 10 cm
26.4 deg 25400 meters ...
12 cm
28.0 deg 26100 meters
15 cm
30.8 deg 27200 meters
... 14 cm
35.4 deg
28700 meters ... 16 cm
40.3 deg 29700 meters ...
18 cm
45.4 deg 30100 meters
... 20 cm
47.5 deg
30100 meters 10 cm
Maximum range = 30100 meters at 45.7 deg elevation