Procedures for Destruction of Plotting Board MI7

the base, base grid surface, and azimuth disk.

directed, due consideration should be given to

Elapsed time: about 3 minutes.

the observance of appropriate safety precautions.

(3) In the absence of a welding or cutting

5-4. Procedures for Destruction of Plotting

torch, place the plotting board on a pile of com-

Board M17

bustible. Pour gasoline or oil over the combusti-

ble and over the plotting board; ignite and take

a. Method No. 1--By Mechanical Means.

cover. A hot fire is required to render the mate-

( 1 ) Remove the plotting board from its

riel useless.

carrying case.

Warning: When igniting gasoline, due

(2) Using an axe, pick mattock, sledge, or

consideration shall be given to the highly flam-

similar implement, destroy the plotting board by

mable and explosive nature of gasoline and its

smashing the base, destroying the base grid sur-

vapor. Carelessness in its use may result in pain-

face, and azimuth disk. Elapsed time: about 2

ful burns.

minutes.

Elapsed time: about 2 minutes.

b. Method No. 2--By Burning.

(1) Remove the plotting board from the

c. Method No. 3--BY Disposal. Bury the plot-

Carrying case.

ting board in a suitable hole or throw it into a

stream. Elapsed time: about 2 minutes.

(2) Using a welding or cutting torch, burn

5-2