HNSA Crest with photos of visitors at the ships.
Folks,

Mine Disposal Handbook, 1945, was created by the U.S. Navy Bomb Disposal School near the end of WW II. It covers all forms of underwater ordnance, not just mines.

Be sure to look at the page before and after those shown in the index for photos and drawings of any particular device.

This copy was made from the original at the US National Archives. We are looking for a more complete copy of the declassified (not part 1) pages, (note the pages missing, esp. British, Russian).

Please report any problems with the Mail Feedback Form for correction.

Richard Pekelney
Webmaster


TABLE OF CONTENTS

PART I - GENERAL INFORMATION (this part witheld)
PART II - UNITED STATES UNDERWATER ORDNANCE
PART III - BRITISH UNDERWATER ORDNANCE
PART IV - GERMAN UNDERWATER ORDNANCE
PART V - ITALIAN UNDERWATER ORDNANCE
PART VI - JAPANESE UNDERWATER ORDNANCE
PART VII - RUSSIAN UNDERWATER ORDNANCE (this part missing)
PART VIII - DUTCH UNDERWATER ORDNANCE
PART IX - FRENCH UNDERWATER ORDNANCE

Detailed Table of Contents

PART I Cover
 
Part I content withheld (still classified) at NARA as of Mar 2011.
 
PART II - UNITED STATES UNDERWATER ORDNANCE Cover
 
CHAPTER 1- U. S. INFLUENCE MINES 1
Mine Chart (Table I) 2
Introduction 3
Mk 10-3 (10-6, 10-7, 10-8 & 10-9) 5
Mk 12-0 9
Mk 12-1 11
Mk 12-3 & 12-4 13
Mk 13-0 (13-3 & 13-4) 13
Mk 13-5 (13-6) 15
Mk 16-2 16c
Mk 18-0 17
Mk 21-0 19
Mk 25-0 21
Mk 25-1 25
Mk 25-2 26a
AN Mk 26-1 (Mk 36-0 & 36-1) 27
Mk 36-2 30
Mk 27-0 31
 
CHAPTER 2 - U. S. CONTACT MINES 1
Mine Chart (Table II) 2
Introduction 3
Mk 5-0 3
Mk 6-0 5
Mk 6-2 7
Mk 6-3 9
Mk 6-4 9
Mk 7-0 11
Mk 10-1 11
Mk 11-1 13
Mk 16-1 17
Mk 19-0 (19-1 & 19-2) 19
Mk 23-0 23
 
CHAPTER 3 - U. S. TORPEDOES 1
Torpedo Chart (Table I) 2
Warhead Chart (Table II) 2
Warhead Extensions Chart (Table III) 2a
Exploders Chart (Table IV) 2a
Introduction 2b
Identifying Features 2b
General Precautions 2b
Torpedo Mk 8 Mods 3C and 3D 2d
Torpedo Mk 13-0 2e
Torpedo Mk 14-3A (mks 23-0 and 23-1) 2k
Torpedo Mk 15 Mods 1 and 2 (Mk 15-3) 2o
Torpedo Mk 18-1 (Mk 18-2) 2q
Exploders Mk 3-1, 3-2, 3-3, 3-4 3
Exploders Mk 4-0 & 8-0 & Mods 7
Exploders Mk 6-0 & Mods (except Mk 6-5 & 6-6) 9
Exploders Mk 6-5 & 6-6 11
Exploder Mk 5-0 & Mods 11
Exploder Mk 10-3 13
Exploder Mk 9 Mod 0 and Mark 9 Mod 1 19
 
CHAPTER 4 - U. S. DEPTH CHARGES 1
Depth Charge Chart (Table V) 2
Introduction 3
Depth Charges Mk 6-0, 6-1, 6-2, 7-0, 7-1 & 7-2 3
Depth Charge Mk 8-0 7
Depth Charges Mk 9-0, 9-1, 9-2 & 9-3 11
Depth Charge Mk 10-0 13
Depth Charge Sling 17
Depth Charge Mk 9 Mod 3 or Mod 4 19
 
CHAPTER 5 - U. S. DEPTH BOMBS 1
Depth Bomb Chart (Table VI) 2
Depth Bomb Fuzes (Table VII) 2
Introduction 3
Nose Fuze Mk 219-0 3
Nose Fuze AN-M 103 5
Transverse Fuze AN-Mk 224 5
Transverse Fuze AN-Mk 234 7
Tail Fuze Mk 229-0 7
Tail Fuze AN-Mk 230 7
Tail Fuze Mk 231-0 9
 
CHAPTER 6 - U. S. AHEAD-THROWN ANTI-SUBMARINE WEAPONS 1
Introduction 3
772 Rocket (Mousetrap) 3
Nose Fuze Mk 131-0 3
Nose Fuze Mk 135-0 5
Nose Fuze Mk 140-0 7
772 Projector Charge (Hedgehog) 7
Nose Fuze Mk 136-0 9
Nose Fuze Mk 140-0 9
Nose Fuze Mk 142-0 9
 
CHAPTER 7 - U. S. CONTROLLED MINES 1
Introduction 3
Mk 20-0 3
Army Ground Mine M4 5
 
 
PART III - BRITISH UNDERWATER ORDNANCE 1
 
CHAPTER 1 - BRITISH INFLUENCE MINES 1
Mine Chart (Table 1) 2
Introduction 3
"A" Mark I ("A" Mark II, III and IV) 5
"A" Mark V 9
"A" Mark VI 13
"A" Mark VII 17
"M" Mark I 19
"M" Mark II 23
"M" Mark III 25
 
CHAPTER 2 - BRITISH CONTACT MINES 1
Mine Chart (Table 1) 2
Introduction 3
H II Mark II 5
"T" Mark III 9
Vickers Antenna 11
Mark XIV (Mark XV, XVI and XVII) 15
Mark XIX 21
Mark XIV (Mark XXVII) 25
Mark XX XIXs (Mark XX*) 29
Mark XXII (Mark XXII*) 33
Mark XXV 37
 
CHAPTER 3 - BRITISH TORPEDOES 1
Torpedo Chart (Table 1) 2
Warhead Chart (Table 2) 4
Introduction 6
21" Duplex Impact-Only Exploder, Mark I and I** 7
C.C.R. Exploder, Mark I and I** 11
18" Duplex Exploder, Mark I (Mark II) 13
Above-Water Exploder 15
Exploder Chart (Table 3) 20
Type 3 Exploder 21
 
CHAPTER 4 - BRITISH DEPTH CHARGES 1
Depth Charge Chart (Table 1) 2
Introduction 3
Mark VII (Mark VII*, Mark XIII) 3
Mark VII (Heavy) 5
Mark VIII (Mark XI, XI*) 7
Mark X (Mark X*) 11
Mark XII 15
Pistols Mark VII, VII*, VII*A, VII**, VII**A, and VIII 17
Pistols Mark VIII*, VIII**, VIII***, IX, IX*, IX**, IX***, XI, XI*, XI*C, and XIII 19
Pistols Mark XIIIA, XIII*, XIV, XIV*, XV, XVC 21
Pistols Mark XVI, XVI*, XIX, XX, IXX*, XXI 27
Primers (Boosters) Mark VII, VII No. 2, VIII, VIA, X 27
Primer Placers (Booster Extenders) Mark I & I* 29
 
CHAPTER 5 - BRITISH DEPTH BOMBS 1
Depth Bomb Chart (Table 1) 2
Depth Bomb Fuzes (Table 2) 2
Introduction 3
Nose Fuze #32, Marks II* and III 9
Tail Fuzes #895A, Mark I, #875A, #875B and #8750 11
Tail Fuzes #862, Marks I and II 11
 
CHAPTER 6 - BRITISH AHEAD-THROWN ANTI-SUBMARINE WEAPONS 1
Introduction 3
Hedgehog 3
Squid 3
 
CHAPTER 7 - BRITISH CONTROLLED MINES 1
L Mark I (L Nark II) 3
 
PART IV - GERMAN UNDERWATER ORDNANCE 1
 
CHAPTER 1 - GERMAN INFLUENCE MINES 1
Mine Chart (Table 1) 2
Firing Unit Charts (Tables 2, 3, 4 and 5) 4
Bomb Fuze Chart (Table 6) 6
Clock and Clock Accessory Charts (Table 7) 7
P.D.M. Chart (Table 8) 8
Parachute Chart (Table 9) 8
P.S.E. Chart (Table 10) 9
Introduction 10
Hydrostatic Clock Anti-Recovery Switches 10
General Precautions 11
Influence Firing Devices 12
Magnetic Firing Units 12
Acoustic Firing Units 12
Magnetic-Acoustic Firing Units 13
Pressure-Operated Firing Units 13
M Mark II Unit Circuit 15
M Mark II (Revised) Unit Circuit 16
M Mark III Unit Circuit 17
M Mark IV Unit Circuit 18
M Mark IVa Unit Circuit 19
M Mark V Unit Circuit 20
M Mark VI Unit Circuit 21
M Mark VII Unit Circuit 22
M Mark VIII Unit Circuit 23
M Mark IX Unit Circuit 25
A Mark I Unit Circuit 27
A Mark II Unit Circuit 29
A Mark III Unit Circuit 31
A Mark IV Unit Circuit 33
A Mark V Unit Circuit 35
AM Mark I and II Energy Flow Diagrams 38
AM Mark I Unit Circuit 39
AM Mark II Unit Circuit 41
Pressure Detecting Device 43
AP Mark I Unit Circuit 45
MP Mark I Unit Circuit 45
Mechanical A.L.A. 49
Magnetic A.L.A. 49
Electromagnetic A.L.A. 49
RAY and RIM Clocks 55
Mechanical P.D.M. 57
Electrical P.D.M. 57
P.D.M. for use with N Mark IVa Unit 57
Rheinmetall Bomb Fuze 61
Master Switch 61
Fuse Delay Switch 61
Mark I-IV P S E 63
ZUS-40 Anti-Withdrawal Device 63
Lattice Type Parachutes 67
Canopy Type Parachutes 67
Mine Type GO and GP Testing Circuits 69
Cantilever Microphone 71
Diaphragm Microphone 71
Mine Type GC 73
Mine Type GD 81
Mine Type GG 85
Mine Type GH 93
Mine Type GI 95
Mine Type GO 97
Mine Type GP 103
Mine Type GS (GN) 107
Mine Type GT 111
 
CHAPTER 2 - GERMAN CONTACT MINES 1
Mine Chart (Table 1) 2
Introduction 3
Base Plates 3
Self Destroying Mechanisms 3
Mooring Safety Switches 3
Base Plate Chart (Table 2) 4
"A-E" Switch 5
RMS for Standard Base Plates 5
General Precautions 7
Mine Type GJ 11
Mine Type GK 15
Mine Type GL 19
Mine Type GL-P 23
Mine Type GM 25
Mine Type GQ 29
Mine Type GR 31
Mine Type GU 35
Mine Type GW 39
Mine Type GX (GX*, GV) 41
Mine Type GY (GT*, GV*) 47
Mine Type GZ 52
 
CHAPTER 3 - GERMAN TORPEDOES 1
Warhead Chart (Table 1) 2
Exploder Chart (Table 2) 3
Introduction 5
Kb Warhead 5
Kc Warhead 5
Kcl Warhead 9
Ke Warhead 9
Kel Warhead 9
F5b Warhead 9
GK2 Warhead 9
GK3 Warhead 13
General Precautions 13
Pi-2 and Pi-2c Circuit 17
Pi-3 Circuit 19
Pi-4c Firing Device 21
Pi-1 (Pi-lc) Exploder 23
Pi-2 (Pi-2c) Exploder 27
Pi-3 Exploder 30
Pi-4c Exploder 33
P1428 Exploder 37
SIC Activator 41
Pi42s (el) Exploder 45
F.5.S. Exploder 49
G7A-AZ Exploder 50
G7A-MZ Exploder 51
 
CHAPTER 4 - GERMAN DEPTH CHARGES 1
Introduction 3
General Precautions 3
Depth Charge Type I 3
Type II Pistol 5
Type I, III, IV and I Pistols 7
Standard Booster 7
Booster Release Mechanism 13
Tactical Depth Charge 13
 
CHAPTER 5 - GERMAN CONTROLLED MINES 1
Mines Type GH and GI 3
 
CHAPTER 6 - GERMAN SWEEP OBSTRUCTORS 1
Explosive Conical Floats, Type 1 and 2 3
Static Conical Float 5
Cylindrical Sweep Obstructor 7
 
PART V - ITALIAN UNDERWATER ORDNANCE 1
 
CHAPTER 1 - ITALIAN CONTACT MINES 1
Mine Chart (Table 1) 2
Introduction 3
Mine Type II 5
Mine Type IJ 7
Mine Type IK (IK Coloniale) 11
Mine Type IL 15
Mine Type IM 17
Mine Type IN 19
Mine Type TO 21
Mine Type IP 25
 
CHAPTER 2 - ITALIAN TORPEDOES 1
Introduction 3
Warheads Types A, B and C 3
SIC Warhead 3
Standard Exploder 7
SIC Activator 11
SIC Circuit - Operation 15
Circling Torpedo 17
Circling Torpedo Exploders 20
Impact-Direct Action Type 21
Impact-Inertia Type 21
Self-Destroying Type 23
 
CHAPTER 3 - ITALIAN DEPTH CHARGES 1
Introduction 3
1927 Yodel Depth Charge 3
1936 Model Depth Charge 5
Pistols Type A and B 7
Boosters Type A and B 9
Booster Extender and Booster Release Mechanisms 9
Flooder Device 9
Tactical Depth Charge 11
 
CHAPTER 4 - ITALIAN MISCELLANEOUS 1
Controlled Mine Type 0 3
160/C, S. Depth Bomb 5
Fuzes for 160/C. S. Depth Bomb 5
Explosive Paravane 11
Explosive Motorboat 13
 
PART VI - JAPANESE UNDERWATER ORDNANCE 1
 
CHAPTER I - JAPANESE CONTACT AND CONTROLLED MINES 1
Introduction 3
Mine Type JA 5
Mine Type JB 11
Mine Type JC 15
Mine Type JD 19
Mine Type JE 23
Mine Type JF 27
Mine Type JG 31
Mine Type JH 35
Mine Type JI 38a
Mine Type "Pear" 39
Mines Type "Apricot" and "Grapefruit" 39
Mine Type "Banana" 40
Mine Type "Quince" 41
Mine Type "Avocado" 41
Mine Type "Persimmon" 42
Mine Type "Grape" 42
Mine Type "Pomegranate" 43
Mines Type "Blueberry" and "Fig" 43
Mine Type 92 Model 1 (JK) 45
Mine Mark 6 Model 2 (JL) 49
Type 3 Mark 1 Aircraft Mine Model 1 (JJ) 53
 
CHAPTER II - JAPANESE TORPEDOES 1
Introduction 3
Exploder Type 90, Model 2 3
Special Spanner for BIndentificationers 9
Exploder Type 91, Model 1 (Type 91, Model 2) 11
Type 3 Warhead 15
Hydroplane Firing Device 17
Exploder Type 2 31
Exploder Type 44 Mark 2 Mod 1 43
Torpedo Sixth Year Type 37
Torpedo Eighth Year Type Mark 2 Mod 2 49
Torpedo Type 89 Mod 1 55
Torpedo Type 91 Mod 1 61
Torpedo Type 91 Mod 2 69
Torpedo Type 91 Mod 3 (Type 91 Mod 3 Special) 75
Torpedo Type 92 Mod 1 83
Torpedo Type 93 Model 1 Mod 2 89
Torpedo Type 93 Model 3 97
Torpedo Type 97 101
Torpedo Type 2 (Special) 111
 
CHAPTER III - JAPANESE DEPTH CHARGES 1
Introduction 3
Depth Charge Type 95 (Modification 1, Modification 2) 3
Depth Charge Type 2, Modification 1 9
 
CHAPTER IV - JAPANESE DESIGNATION OF UNDERWATER ORDNANCE 1
Introduction 3
Japanese Calendar 3
Numeral System 3
Type Number 5
Model and Modification Numbers 5
Mark Number 7
Miscellaneous Designations 7
Underwater Ordnance Indentifioation 7
Glossary 14
 
PART VII - RUSSIAN UNDERWATER ORDNANCE 1
 
CHAPTER 1 - RUSSIAN INFLUENCE MINES 1
Mine Type Mirab 3
 
CHAPTER 2 - RUSSIAN CONTACT MINES 1
Table 1 - Russian Contact Mines 2
Introduction 3
Mine Mark M-08 5
Mine Mark N KB (Mark M AG) 7
Mine Mark N AMG-1 13
Mine Mark N PLT 17
Mark MZ-26 Sweep Obstructor 21
 
PART VIII - DUTCH UNDERWATER ORDNANCE 1
 
CHAPTER 1 - DUTCH CONTACT MINES 1
Dutch Vickers 3
Dutch Seven Horn 5
Dutch Percussion 7
 
CHAPTER 2 - DEPTH CHARGES 1
Dutch Depth Charge 3
 
PART IX - FRENCH UNDERWATER ORDNANCE 1
 
CHAPTER 1 - CONTACT MINES 1
French Breguet (Bridle Type) 3
French Breguet (Shear Horn Type) 7
French Sautter Harle 9
 
CHAPTER 2 - FRENCH TORPEDOES 1
French Impact Exploder 3
 
CHAPTER 3 - FRENCH DEPTH CHARGES 1
French Depth Charges 1
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