OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER
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Chapter'XIII<br />
l6-INCH SIGHT, MARKIV ANDMARKIV, MOD.1<br />
General Description<br />
1. Turret fire control and the arrangements for control<br />
<strong>of</strong> the elevating and training gear speed gears are substantially<br />
different arrangements from previous main battery<br />
gun positioning control systems. These arrangements are utilized<br />
in whole or part in each <strong>of</strong> three basic systems <strong>of</strong> fire control.<br />
Designated "P'r Lmar-y , II tlAuxiliaryll and "Loc a.L" cont.r o.l ;«<br />
these systems provide control according to the following brief<br />
description <strong>of</strong> each.<br />
Primary control is dire~tor ~ontrol from for-<br />
~a~d or after "main ,battery director through<br />
plotting room instruments and gun mount indicators.<br />
In this system, .<strong>of</strong> control the guns<br />
are laid and the turret Is trained by gun layers<br />
and a gun train operator who match pointers<br />
in their respective indicators by operat-<br />
.Lng conventionally arranged, handwheel control<br />
uni ts <strong>of</strong> the ir respec five speed gears. The<br />
gun layers and gun train operator are at stations<br />
remote from sight stations.<br />
Auxiliary control is an alternative emergency<br />
director system. 'It is 'dLrect or- fire control<br />
employing auxiliary fire control facilities<br />
within the control tower or turret 2, transmitting<br />
director orders through auxiliary switchboard<br />
in turret 2 and thence to the gun mount<br />
indicators. The guns are laid and the turret<br />
is trained from the same stations as in Primary<br />
control.<br />
Local control~ in its basic plan, is independent<br />
direction <strong>of</strong> own turret fire using own<br />
turret sights) rangefinder and auxiliary computer.<br />
The system is capable <strong>of</strong> variations)<br />
i.e. using plotting room instruments) other<br />
rangefinder. The guns are positioned in elevation<br />
by the gun layers according to mechanically<br />
or electrically transmitted gun elevation<br />
order from the sight pot.nter t s station.<br />
The turret is trained by direct control from<br />
the sight trainer! s handwheels to the training<br />
speed gear; the gun train opera tor does not<br />
______ f~~t~o~. _<br />
-:t A fourth method, "Remot.e Cont.r ol ;" is to be added.<br />
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