This 8-caliber piece is equipped with a threaded breech
plug, which has a short steel sleeve to secure obturation. It rests by its
trunnions on a small mount which is joined to the chassis by two hydraulic
brakes. This chassis has inclined slideways for the recoil. It rests on three
rollers on a cast-steel platform which is flush with the ground.
Arrangements for transportation. Transportation is by three
loads, comprising the mortar, the chassis with mount, and the platform.
Each part is suspended from what is known as a transporter,
which is a metal frame, like a traveling crane, the ends of which rest on two
18S8 model small cars on which the transporter can pivot. For transportation
over highways the same arrangement is used, supplemented by wagon trains.
Arrangement for firing. The piece is put into battery by
means of transporters working on two parallel 60-cm. gauge tracks laid 7 meters
apart, perpendicular to the line of fire and passing each side of the
excavation dug for the platform. Each of these tracks is connected by turntable
with the approach track so that the transporter can bring each part
successively over the excavation, where it is a simple matter to lower it into
place.
Ammunition supply. The projectile is put on a loading car,
which is brought to the rear of the platform by a special 60-cm. gauge car,
from which it is passed to the breech along rails which run over a movable
bridge to the ends of the recoil slide- ways on the platform.
Mortier de 370mm (L/8) FILLOUX
Type : heavy mortar/siege howitzer
Caliber : 370mm
Weight in action : 28615 kg
Elevation : -8° to +60°
Traverse : 44°60'
Ready to fire in 36 hours
Rate of fire : 1-2 shell every 5 minutes
HE Shell
Maximum range : 10500 m (7800 m)
Projectile weight : 375 kg (540 kg)
V° : 375 m/s
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