Mortar Gunnery

 

Publication Title:                   Mortar Gunnery
Publication/revision date:    01 MAR 2000
Field Manual:                        FM 23-91
   Supersedes:                      FM 23-91, 06 DEC 1991
Distribution Restriction:       Approved for public release, distribution unlimited (public domain manuals)

CONTENTS
Table of Contents

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PREFACE
Part One
INTRODUCTION AND FUNDAMENTALS
OF MORTAR GUNNERY
CHAPTER 1 INTRODUCTION
1-1. Organization
1-2. General Doctrine
1-3. Indirect Fire Team
1-4. Mortar Positions
CHAPTER 2 FUNDAMENTALS OF MORTAR GUNNERY
Section I ELEMENTS OF FIRING DATA AND BALLISTICS
2-1. Direction
2-2. Range
2-3. Vertical Interval
2-4. Distribution of Bursts
2-5. Interior Ballistics
2-6. Nature of Propellents and Projectile Movements
2-7. Standard Muzzle Velocity
2-8. Nonstandard Muzzle Velocity
2-9. Exterior Ballistics
2-10. Trajectory
Section II FIRING TABLES
2-11. Purpose
2-12. Unit Corrections
2-13. Standard Range
Section III FIRE PLANNING
2-14. Terminology
2-15. Target Considerations
2-16. Support of Offensive Operations
2-17. Support of Defensive Operations
2-18. Fire Support Coordination Measures
2-19. Company Fire Support Plan
2-20. Battalion Fire Support Plan
Section IV TARGET ANALYSIS AND ATTACK
2-21. Target Description
2-22. Registration and Survey Control
2-23. Size of Attack Area
2-24. Maximum Rate of Fire
2-25. Amount and Type of Ammunition
2-26. Unit Selection
2-27. Typical Targets and Methods of Attack
Part Two
FIRE DIRECTION CENTER
CHAPTER 3 INTRODUCTION
3-1. Principles of Fire Direction
3-2. Organization
3-3. Personnel Duties
CHAPTER 4 MAJOR CONCERNS OF THE FIRE DIRECTION CENTER
4-1. Types of Sheaves
4-2. Computer's Record
4-3. Data Sheet
4-4. Angle T
4-5. Firing Tables
4-6. Ballistic Meteorological Message
4-6.1 Computer MET Message
4-7. The 6400-Mil MET Message
4-8. Computation of MET Corrections for Large Sector Capability
4-9. Meteorological (MET) Corrections
CHAPTER 5 CALL FOR FIRE
5-1. Observer Identification
5-2. Observer Identification
5-3. Warning Order
5-4. Target Description
5-5. Method of Engagement
5-6. Methods of Fire and Control
5-7. Message to Observer
5-8. Call-For-Fire Format
5-9. Authentication
Part Three
MORTAR BALLISTIC COMPUTER
CHAPTER 6 INTRODUCTION
6-1. Description
6-2. Audio Alarm
6-3. Capabilities
6-4. Memory Storage
6-5. Error Messages
CHAPTER 7 PREPARATION OF FIRE CONTROL EQUIPMENT
7-1. Types of Data Entry
7-2. Initialization
CHAPTER 8 TYPES OF MISSIONS
8-1. Grid Mission
8-2. Shift Mission
8-3. Polar Mission
8-4. Technical Fire Control
8-5. Sheaves
8-6. Traversing Fire
8-7. Searching or Zone Fire
8-8. Illumination
8-9. Coordinated Illumination
CHAPTER 9 SPECIAL PROCEDURES
9-1. Registration and Sheaf Adjustment
9-2. Mean Point of Impact Registration
9-3. Radar Registration
9-4. Final Protective Fires
9-5. Immediate Smoke or Immediate Suppression
9-6. Quick Smoke
9-7. Special Keys and Functions
CHAPTER 10 DIGITAL MESSAGE DEVICE SUPPORTED
10-1. Application
10-2. Communications
Part Four
M16 AND M19 PLOTTING BOARDS
CHAPTER 11 INTRODUCTION
11-1. M16 Plotting Board
11-2. M19 Plotting Board
11-3. Capabilities
CHAPTER 12 PREPARATION OF FIRE CONTROL EQUIPMENT
12-1. Observed Firing Charts
12-2. Modified-Observed Firing Chart
12-3. Transfer of Targets
12-4. Deflection Conversion Table
12-5. Grid Mission
12-6. Shift Mission
12-7. Polar Mission
CHAPTER 13 TYPES OF MISSIONS
13-1. Traversing Fire
13-2. Searching and Zone Fire
13-3. Illumination
CHAPTER 14 SPECIAL CONSIDERATIONS
14-1. Registration and Sheaf Adjustment
14-2. Mean Point of Impact Registration
14-3. Vertical Interval Correction Factors
14-4. Radar Registration
14-5. Final Protective Fires
APPENDIX A MORTAR TRAINING STRATEGY
APPENDIX B SAFETY PROCEDURES
APPENDIX C FIELD-EXPEDIENT SURVEY TECHNIQUES
APPENDIX D FIRE DIRECTION CENTER CERTIFICATION
APPENDIX E TERRAIN MORTAR POSITIONING
GLOSSARY
REFERENCES
AUTHENTICATION


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