COAST. I ARTILLERY JOURNAL, - Air Defense Artillery

464 THE COAST ARTILLERY JOURNAL
ARRANGEMENTS FOR BURNING
a. A series of holes in a direct line are made on the special burning ground
(Figs. I and 2). b. The number of direct lines of holes will be governed by the
size of the burning ground. c. The minimum distance between each hole must be
not less than 7.5 metres, measured from center to center. d. Dig holes so that the
worker may stand away from the shell to prepare the process for each burning.
e. Dimensions of holes must be as follows: ten feet deep; minor axis, 2 feet
6 inches; major axis, 4 feet 6 inches. Maximum width of top of hole: minor axis,
SPECIAL
COMPOSITION
12' lYDDITE~fitL
,
•• 10 ...,..
3 feet; major a."'!:is5 feet. At the bottom of hole a little sump must he made
to collect water (Fig. 3). f. The holes must be lined with corrugated iron sheet
lapped I foot 6 inches. g. On top of the hole, running with the minor axis, a
Decauvilie railway for lowering and raising the shells by means of a small crane
fixed on a trolley. h. A ladder is provided, fitted ...ith hooks to fix on one rail of
the Decamille line in such a manner that the ladder will not move when the workmen
:rre entering or leaving the hole. If the ladder is constructed of wood, it
must be removed before burning is commenced. i. The shell must be placed in
a tank of water in the hole. The height of the water in the tank must he not less
than four-fifths the height of the shell. The diameter of the tank must he at least
t...ice the diameter of the shell. If it be desired to bum out, in the hole for 9.2-inch
shell, shells of smaller caliber, the following conditions are necessary: (1) The