Graphic Diagram to Illustrate
The Varying Ratios between Weight of Heaviest Gun, its Penetrative Power and
the
Protection Affordee
TO Ships during
THE
LAST
Fifty Years
Plate 10.
iST'ses
1870 1873 1880 I88S 1890 I89S
1900 190S 1910 YEAR 0,^
.'s
\
— r—
1
! i
i i
1
1
__
no
TONS
100
90
80
70
60
50
40
30
20
10 TONS
1
1
I
r
'v
\
\
""
— \
— !0 —
—
\
4-
-
1
\
Ul
\
3
n
i^
j
cc
z
ffi
(
s
OC
w
\
z
(9
-
-
u.
or
z
ij
i
.1
t-
^
KU —
\
bl
u
1
.
1-
5
3
/]
J
)
\
>
a.
1
1
\
?i
- "l
z
1
1
Q
OC Ul
y
w —
1
1
\
3
<
111
-J
/
1
1
1
i
i
,
<
I
Q
CQ
f
-
—
-
1
t
\
?
<
111
y"-
1
1
»
1
V
^
cc
z
3
z
y
1
t
\
IL
Q
^
^'
1
1
/
\
1
"■
1
\
/
\
u
u
f
J
^-1
1
1 1
/
s
(0
u
0.
n
/
/
1
1
/
N
<
z <
/
/
1— H
/
S
1
3 s
i
^
\
k
/
/\
^
i
1
e
- ]
/
<
a
'" "
t/
I n
1
1
a
2
/
iij cc
/
10
z
S
1
a
/
i
g
/
P
z n
3
I
i
>
m
/
►—
— '
'
I
z
u
J
&
< 111
\
1
/
n
y
\
J <
/
3
X
z
3
z
Q
<
P
i
1
X
1
/
s
s
I
/
z
i-
Si
6
z
21
oi
111 n
^-
z
1
■3
/
V
^
/
Q
(T
<
111
-1
z 111
z
i£
-
-
i
"'
1
<
OC
/
/
III
CD
?
OC
111
z
/
~~"
""^
1
z
/
/
S
Q
y
— f
>
/
iO —
6
E
1
1
X
'
/
s
/
/
Vo
/
<
1
■ T
■j7
"7
i
'
r-Z
/
r
\
«»
z
/
1
_i
J-
_^
?
t
?^
CO
J
-1
1
-i
'
7
^
<
^
li
(fl
~7
■^
s.
-5
z
^
^^
"^
'
~
■ 1
3
/V(^
f
\
/
K
0.
/
\
vP
/
OC
/i\
/
^
-3
z
/
\
'
-5
}
'\
\
y
I
\
S
<j
'
J 1 u
< CO
-
/
]
y\
i
/
a:
f
^
— r
^
\
-
/
a
.A,
J-
1
n
\ ^
^
^ i^
<
LU
INS"~*
—
^
V /
1__:_lI ! 1
Q 1
"~
'
'-
^
^
y
1 !
<
J
1
1
--
1 — * - -
1
1
1
1
L
1
1
1
Jl
R Edward J.
R
EED
Sir Nathaniel Barn> !VBY
Sir V
^/lLLIA^
fl White
Sir P Watts
Weight of Biggest Gun In Tons _ . Penetration Ratio of Biggest Gun
^OT^^ — All Armour is converted to its ratio in resisting value on the usual rough approximation that
Belt Protection ,
18 inches of Iron — 15 inches Compound— 12 inches Harvey = 9 inches Harvey-Nickel — 6 inches Krupp Cemented