The particulars and general description of the Skoda 305-mm CD gun L/50 have been received and are
presented here for general information.
The 305-mm CD gun is constructed to meet all modern coast defense requirements. There are three
particulars in which this gun is outstanding.
(a) It is long range and very accurate.
(b) The turret has a wide traversing arc, easily and speedily controlled by a specially
constructed, electrically operated traversing gear, and hydraulic universal transmission. By
means of this apparatus, the revolving speed of the turret is easily controlled, and the
movement of a target can be accurately followed even at the longest ranges by using the
hand-control wheel of the traversing gear.
(c) The elevating gear is likewise operated by an electric motor and universal
transmission, giving easy and rapid control at long range. Again, a moving target
can be accurately followed and covered by using the hand-control wheel.
The movement of the barrel into the loading position and back again takes place at
high speed. This, in addition to the rapid feeding, loading, and firing devices, insures
a very high rate of fire.
The gun is mounted in a revolving turret, which rests on the revolving half of a ball-race
and is supported by a circular, walled platform. The fixed lower half of the race rests on
an anchor ring bolted to the concrete bed. Between the armored wall of the support platform
and the inner side of the surrounding concrete wall, there is a gallery in which runs the
turret ammunition trolley. The revolving cupola rests on the top of this walled support
platform, on a system of leaf springs which run around the whole circumference, so that, if
hit by an enemy shell, the cupola descends upon the circular outer mantlet, and strain is
taken off the support platform.
Inside the turret itself are two platforms dividing the turret into three compartments, one
above the other.
The particulars of this gun follow:
|Weight of shell|| ||925 lbs|
|Muzzle velocity||2,788 f/s|
|Maximum range||43,600 yds|
|Length of barrel||50 cals|
|Elevation||-4° to +45°|
|Maximum traversing speed||1/2° in 1 sec|
|Maximum elevating speed||4° in 1 sec|
|Barrel and cradle|| ||79,200 lbs|
|Armored cupola||638,000 lbs|
|Base of turret||264,000 lbs|
|Revolving turret||1,058,200 lbs|
|Mantlet and armorplate in gallery||391,600 lbs|
|Total weight of turret||1,595,000 lbs|