Military

*FM 23-91

FIELD MANUAL
NO. 23-91
HEADQUARTERS
DEPARTMENT OF THE ARMY
AND THE AIR FORCE
Washington, DC, 1 March 2000

FM 23-91

MORTAR GUNNERY

Table of Contents


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

DISTRIBUTION RESTRICTION: Approved for public release, distribution is unlimited.


*This publication supersedes FM 23-91, 6 December 1991.



NEWSLETTER
Join the GlobalSecurity.org mailing list


 

privacy policy