Page 150 - Israel Defense Directory 2013-14

VIDCO THERMAL SHROUD
Environmental Influence on a Bare Barrel
THE PROBLEM
Great efforts and money are invested in
installation of fire control systems in
modern tanks, in order to increase the
probability of hitting enemy targets with
the first round, thereby providing the
tank with destruction superiority over its bending induce changes in the direction
enemy. Fire-control systems provide
the cannon with its super-elevation
angle. This angle is a result of
measurements and computer
calculations based on data from the
Merkava tank with thermal shroud.
150 Land Forces Tanks and Armored Combat Vehicles
VIDCO INDUSTRIES LTD.
2 Ha’ofan St.,
Industrial Zone
Holon 5881419, Israel
Tel: 972-3-5570981
Fax: 972-3-5595715
E-mail: ron.zukerman@vishaypg.com
target, from the tank itself and from the since the barrel is a long metal tube
environment. The final result influenced by thermal conditions.
(destruction of target), however is Curvature of 3/1000 of a radian is
heavily influenced by the bending of the equivalent to an aiming error of 3
cannon's barrel regardless of the meters when a target is located 1000
precision of the fire-control system. The meters from the cannon. In other
aiming errors resulting from barrel words, first-hit probability at 1000
meters is very low. The tube bending,
of the plane of the barrel's muzzle therefore, introduces unpredictable
compared to the line of aiming. The major errors in accuracy and practically
curvature due to bending can reach up cancels out the advantages of modern
to 3/1000 of a radian and is unavoidable fire-control systems.