The Watertown weekly leader. [volume] (Watertown, Jefferson County, Wis.) 1912-1917, 1915-10-05
HIGH POWER Guns
Long Range Weapons That Are
Used In Land Warfare.
TYPES OF HEAVY ORDNANCE.

Field and Siege Guns, Howitzers and
Mortars Are Very Much Akin, and II
is Difficult to Say Just Where One
Ends and the Other Begins.
There Is no sharp and distinct I'M
Outstanding on the part Of the average
person as to the difference or distinc
ton between the field gun, the siege
gun, the howitZer and the mortar. The
precise line of distinction or mark of
distinction between these classes Of
weapons might be difficult even for an
ordnance technician to define. It is
certainly difficult for a layman to tell
just where the gun ends and the how
itZer begins, or where the howitzer
ends and the mortar begins.
Considered in q broad and general
way, the special purpose Of the gun
was and Is to destroy other guns in
march or In position, to destroy troops
In the open and to batter down objects
behind which troops find shelter. The
projectile of the gun by high powder
pressure was given high velocity and
relatively fat trajectory, which
means that the shot passing from the
gun to the target did not rise high
above the earth or above line joining
gun and target To withstand the
powder pressure required for this work
| the gun was heavy in relation to the
| weight of the projectile. From the
| fact that the shot travelled in d path
relatively of slight curve, its slope of
! fall or its angle Of fall was not steep.
! 1t would go through a stone wall, or
| perhaps smash it, or would go deep
| into dirt embankment, but it was not
easy to put shot inside a narrow deep
| trench, or to plant a shot SO close be-
| hind an embankment as to kin men
| sheltered there.
| The shot from the gun was good at
penetration, but ineffective in search
| ing the rear Of cover. To accomplish
that purpose another style of gun was
| devised. The pressure per square inch
| Of powder chamber was decreased, the
| angle Of elevation of the gun was in
| creased, the angle of departure of the
shot VISA greatly increased and the
| shot after reaching the summit of it's
path fell SO steeply that If the range
/ were known and the practice good the
| close behind an embankment or para
| pet that men would find no shelter
there.
This being possible by reduction Of
| powder pressure per square inch Of
| chamber surface and consequent re-
duction in the speed of the projectile,
1t was found that the weight of the
| gun in relation to the weight of the
projectile could be diminished, thus In
creasing its mobility or the facility
with which it could be moved from
place to place.
1t was found that the barrel of this
! gun could be very much shortened,
thus effecting a saving in weight. But
in making the changes in this gun
! instead of absolutely decreasing its
weight the gunmakers enlarged it's
| bore and increased the size of its pro-
! jectile, thus increasing it's efficiency.
This type Of gun, though not in the
| narrow and technical sense a "gun," is
ordnance and an element Of artillery
and was given the specific name show
itzer."
! The mortar was a gun that could
give higher angle of fire and a more
| plunging fire than howitZer 1t was
q very short piece OF ordnance, fired
from platform and held down by
ropes. Forts and mortar boats used it
for getting a high angle of fire and a
more plunging fire with larger shell
than could be had using a howitzer.
The range used to be obtained by vary
ing the power charge At this day
mortars weighing at least four tons,
fitted with an elevating device and
range scale and with recoil and counter
recoil or recuperatOr devices, are haul
ed around on wheels, set down on a
platform also carried on wheels, and
producing vertical fire with a high eX-
plesive shell weighing go pounds with
or without a delay action fuse.
The field gun for the purpose Of FIR
I, Ing over ridges, getting at troops on
the reverse slope of ridges or across
hills, giving to shrapnel the proper
slope of fall for effective distribution
and keeping the load light on the
horses has yeered away from the gun
| as developed in ship and fortress ar
tillery and in the direction of the how
itzec-l like properties. Field guns have
had their trails split that the breech
may be further depressed, thus giving
them a higher angle of fire designed
for use against air craft, and in effect
ing useful compromise between pow
err and mobility the trajectory of shots
from this gun is high and the slope Of
fan quite steep.
! Guns of high power-high powder
pressure, high velocity and long range
have been built to give vertical fire
OF nearly vertical elevation against
aeroplanes or dirigibles
So, as announced, it is not an easy
question TO decide just where gun,
howitzer and mortar divide. = Wash
ington Star.