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Director Firing Handbook 1917

Director Firing Handbook 1917

1917

Repository
Document ID
Pages
Dimensions
Plates
ADM 186/227
158

16.5cm x 28.25cm
83

 

This manual has been invaluable to my research.  I am lucky to have color copies of its colorful plates, obtained from a friend who owns an original copy (#856). It would be difficult to imagine a line of technical research that would not benefit from reading this.

The inside cover has a note dated October 1917 alluding to a previous edition of 1914 which this obsoletes.

CONTENTS

 

CHAPTER I.
Introduction.  Definitions-- Arrangement of letterpress and plates -- Allowance for dip and muzzle velocity -- Convergence -- Stop gear -- Training and slewing transmission -- Notes on concentricity -- Anti-backlash arrangements -- Vernier couplings -- Ball bearings -- Lubrication and upkeep -- Stripping
 

CHAPTER II.
The Gun Directors.  Cam type gun director on a tripod mounting -- Double cam type -- Gun director gear for mixed armaments -- The tripod mounting -- The aloft tower -- The armored tower -- Cam type gun director on a pedestal mounting -- Its tower -- The light type gun director
 

CHAPTER III.
Elevation Receivers.  Turret type -- 6-inch P. VIII. type -- 6-inch P. VII. type -- 4-inch triple type -- 6-inch P. XIII. type
 

CHAPTER IV.
Training Receivers.  Turret type single dial -- Turret double dial (or relay) type -- Small type
 

CHAPTER V.
The Elevation and Training Circuits.  The transmitters -- The motor -- Change-over switch -- Installation for main armament for ships of the line -- Installation for secondary armament -- Installation in cruisers and light cruisers -- Notes on changing over director positions -- Missfires -- Buzzers -- Gun ready lamps
 

CHAPTER VI.
The Henderson Gun Director Firing Gear.  Description -- Erection and adjustment -- Instructions for use
 

CHAPTER VII.
Tests and the Calculation of Tilt.  Factory adjustment tests -- The calculation of tilt, the radial method -- Applying the displacement correction -- Excessive tilts -- Comparison of results with those of a previous test -- Instructions as to when a tilt test should be carried out.  Dockyard tests and tests by ship's officers -- Notes on tests
 

CHAPTER VIII.
The Mechanical Elevation System.  Design of gun fittings -- The method of firing -- Instruction of the gunlayers
 

CHAPTER IX.
The Open Director Sight.  (O.O.Q.'s)
 

CHAPTER X.
Instruction of the Personnel. Continuous laying and continuous training -- Note on the use of Henderson gear -- Note on canted trunnions -- Instruction of the director crew -- Instruction of gunlayers and turret director trainers -- The director firing teacher -- Communications
 
 

List of the ships fitted for director firing

List of elevation and training receivers

Numerical list of tools used in stripping

Instruction plates

Weights of gun director gear

Gear ratios and pitch radii of racks

Tilt correctors, list of the greatest possible settings

Convergence, the greatest possible corrections

Index list of recent gunnery orders

List of lantern slides

Index

PHOTOGRAPHS
To face page
The gun director on a tripod mounting, trainer's side
22
  
The gun director on a tripod mounting, layer's side
30
  
The gun director on a pedestal mounting, trainer's side
36
  
The gun director on a pedestal mounting, layer's side
40
  
The gun director on a pedestal mounting, rear view
46
  
Elevation receiver, turret type
52
  
Elevation receiver, 6-inch P. VIII. type
56
  
Elevation receiver, 6-inch P. VII. type
60
  
Elevation receiver, 4-inch triple type
64
  
Training receiver, turret single dial type
70
  
Training receiver, turret double dial type
74
  
Training receiver, small type
78
  
6-inch P. IX. mounting, layer's side
58
  
6-inch P. IX. mounting, trainer's side
80
  
6-inch P. VII. mounting, layer's side
62
  
6-inch P. VII. mounting, trainer's side
80
  
Henderson gun director firing gear
96
  
Open director sight (O.O.Q.'s)
134
  

LIST OF PLATES

1.
The gun director in an armored tower.
2.
 Gun director on a tripod mounting.
3.
 Gun director on a pedestal mounting.
4.
 The gun director, geared type.  Elevation.
5.
 The gun director, geared type.  Plan.
6.
 The gun director, cam type.  Elevation.
7.
 The gun director, cam type.  Plan.
8.
 The gun director, double cam type.  Elevation.
9.
 The gun director, geared type.  Diagram.
10.
 The gun director, cam type.  Diagram.
11.
 The gun director, light type. Rear view and plan.
12.
 The gun director, light type. Elevation.
13.
 The elevation drive, and tilt correction.  Diagram.
14.
 Details of the tilt correction.
15.
 Stop gear in the elevation system.
16.
 Deflection and drift mechanism.
17.
 Details of the drift correction.  Diagram.
18.
 The training mechanism.  Diagram.
19.
 The training gearbox -- tripod mounting.
20.
 The training gearbox -- pedestal mounting.
21.
 Sliding pinions for setting the training and slewing transmitters.
22.
 Convergence mechanism on aft gun director -- secondary armament.
23.
 The elevation repeat
24.
 The training repeat
25.
 Canopy roller, and ball bearings of the mountings.
26.
 Elevation receiver, turret type.  Elevation.
27.
 Elevation receiver, turret type.  Section.
28.
 Elevation receivers, turret and 4-inch triple types.  Diagrams.
29.
 Elevation receiver, turret type ; tilt corrector (electrical)
30.
 Elevation receiver, turret type ; operating gear.
31.
 Elevation receiver, 6-inch P. VIII. type.  Elevation.
32.
 Elevation receiver, 6-inch P. VIII. type.  Section.
33.
 Elevation receiver, 6-inch P. VIII. type. tilt corrector (electrical)
34.
 Elevation receiver, 6-inch P. VI. type. Elevation.
35.
 Elevation receiver, 6-inch P. VI. type. tilt corrector (electrical)
36.
 Elevation receiver, 4-inch P. IV.* type. Elevation (mechanical tilt corrector)
37.
 Elevation receiver, 4-inch P. IV.* type. Section
38.
 Tilt corrector, band type.
39.
 Elevation receiver, 6-inch P. VII. type.  Elevation.
40.
 Elevation receiver, 6-inch P. VII. type.  Section.
41.
 Elevation receiver, 6-inch P. VII. type.  tilt corrector (electrical).
42.
 Elevation receiver, 4-inch triple type.  Elevation and back views.
43.
 Elevation receiver, 4-inch triple type.  Section.
44.
 Elevation receiver, 5.5-inch P. I. and I.*.  Section.
45.
 Elevation receiver, 6-inch P. XIII. type.   Rear view and plan.
46.
 Elevation receiver, 6-inch P. XIII. type.   Section.
47.
 Training receiver, turret single dial type. Elevation.
48.
 Training receiver, turret single dial type. Diagram.
49.
 Training receiver, turret single dial type.  Section.
50.
 Training receiver, turret double dial type.  Elevation.
51.
 Training receiver, turret double dial type.  Diagram.
52.
 Training receiver, turret double dial type.  Section.
53.
 Training receiver, small type.  Elevation and plan.
54.
 Training receiver, small type.  Diagram.
55.
 Training receiver, small type.  Section.
56.
 Elevation gear, mechanical type.
57.
 Henderson gun director firing gear.
58.
 Henderson gun director firing gear.
59.
 Henderson gun director firing gear.
60.
 Henderson gun director firing gear.
61.
 Henderson gun director firing gear.  Wiring diagram.
62.
 The transmitter.
63.
 The transmitter quick break type.
64.
 Transmitters at a directing gun -- for training and slewing.
65.
 Transmitters at a directing gun -- for elevation.
66.
 The motor.
67.
 The open director sight (O.O.Q.'s).  Elevation.
68.
 The open director sight (O.O.Q.'s).  Section through gearbox.
69.
 Types of spring gear wheels, Figure 1.
70.
 Types of spring gear wheels, Figure 2.
71.

Types of vernier adjustments.
72.
 The Skefko ball bearings.
73.
 Special tools used in stripping.
74.
 Special tools used in stripping.
75.
 Special tools used in stripping.
76.
 Special tools used in stripping.
77.
 Elevation and training circuits.  "Renown" main armament.
78.
 Firing circuits.  "Renown" main armament.
79.
 Elevation and training circuits.  "Royal Sovereign" main armament.
80.
 Firing circuits.  "Royal Sovereign" main armament.
81.
 Elevation and training circuits.  "Aurora."
82.
 Firing circuits.  "Calypso."
83.
 The director firing teacher

Notes