FIGHTING BOOKS. 
557 
FORT X. 
BATTERY COMMANDER’S FIGHTING BOOK. 
PAST X. 
Armament. 
Description 
Groups 
Number and 
Nature 
How 
Mounted 
Remarks 
j 
<8> 
2 10" B.L., Mark II. 
H.P. mounting 
( Fought by 
l G.G.C. 
Primary < 
€ 
2 12'5" R.M.L.,Mark I. 
En Barbette 
\ 
A 
2 [6" B.L., Mark IV. 
H.P. mounting 
Secondary j 
2 6-pr. Hotchkiss 
2 3-pr. 
Cone mounting 
jj 
Moveable ^ 
2 40-pr. R.M.L. | 
3 3-bar. Nordenfeldt | 
Travelling ^ 
carrriage j 
Parapet ^ 
mounting. 
Have perma¬ 
nent emplace¬ 
ments on left 
flank. 
Power of Guns. 
Nature 
Penetrat’n of W.I. in inches 
Weight of 
Remarks. 
M’zle 
500 
1000 
2000 
3000 
Charge 
Pro¬ 
jectile 
lbs. 
lbs. 
10" B.L., Mark II. 
22*3 
21-4 
20-4 
18-6 
16'9 
252 P 1 Brown 
500 
Common shell 
12-5"R.M.L.„ I. 
17-4 
16-7 
16-0 
14*7 
13-5 
165 P 1 Black 
820 
will penetrate 
about A of 
6" B.L. ,, IY. 
12-4 
11*4 
10*5 
8*9 
7-5 
48 E.X.E. 
100 
these thick- 
nesses. 
Note I .—Against “ Hard Armour,” the guns will only penetrate of the above 
thicknesses. 
Note II .—Perforation decreases as the shot strikes more or less obliquely and, 
against “ Hard Armour,” it has decreased O’8 of the direct perforation before 
reaching 55° with the plate when it glances off; against W.I., the glancing 
angle is 45° when the perforation has decreased to O’7 of its normal 
amount. 
