US Army Special Forces, Technical Manual, TM 9-1220-243-12&P, P L O T T I N G B O A R D , I N D I R E C T F I R E M 1 6 W / E, P L O T T I N G B O A R D , I N D I R E C T F I R E M 1 9 W / E, 1981

Type of Manual. Operator’s and organizational maintenance.
Model Number and Equipment Name.
M16 Indirect Fire Plotting Board
M19 Indirect Fire Plotting Board
Purpose of Equipment. The plotting board is an instrument used to compute the deflection, range, and azimuth for indirect firing of the mortar. The M16 plotting board is used with the 81-mm M29 and the M19 is used with the 60-mm M224 mortar.

INTRODUCTION
General Information
Basic lssue ltems List (BIIL)
Equipment Description and Data
2 OPERATING INSTRUCTIONS
Preventive Maintenance Checks and Services (PMCS)
Setting Up Plotting Board
Handling
How to Use the Plotting Board
Hints for Better Operation
Sample Problems
Operating Under Unusual Conditions
CHAPTER 3 MAINTENANCE INSTRUCTIONS
Lubrication Instructions
Troubleshooting
Maintenance Procedures
APPENDIX A REFERENCES
B MAINTENANCE ALLOCATION CHART
C REPAIR PARTS AND SPECIAL TOOLS LIST
Group 00 M16 Plotting Board w/e and M19 Plotting Board w/e
01 M16 Plotting Board and M19 Plotting Board
APPENDIX D EXPENDABLE SUPPLIES AND MATERIALS LIST