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_ y _
In illustrd ti on 2z th e "e fective tar et surface" offered by any
ship to a specific boiub is indicated in percenta es of the surface
of the deck .
The effective target surface is a composite fi ure
of deck and tar et surtace ,
the latter extending all around th e
ship lik e a b elt .
One sin le hit of the proper bomb can produce
t h e s i nki u o f the a t t a c i e d ve s s e l .
The 'bffective tar et surface" is simultaneously a means of
S
m easuring the vulnerability of a s hip to a specific bomb .
I'h e
objective plane around th e s hi p is al so desi6na ted " en lar ed tar ;et , .
"
Th e ni g S ? T4 Y Y
_
xft x cgs g i n I l l us t r a t i o n 2 2 i a r e -
' e ffective targ et areas" o f the s h ips
s ho w» i n r e r c o l o r a r, d d e s i ua t e t er e f o r e h e po i nt s wh er e t h e
bomb would have to hit in order to sink
tue snip with a direct
hit or near aiss . A reas colored in reen indica te serious da:a e s ,
and ,
yel ow areas show 1i;h t dama .
es .
Several hits in tn e " enl aroed , reeṛ tar ;
;et area" can also
i
pr o duc e a s i ni i ng ,
bu t 't lii s r e 5 u l t v i l l a epend l a r e l y ou t h e
subdivisions of
Lhe ship into waterti ii t parts separated by transv
er s e Uul k ' ea ds an a l or ḥ i t udi na l b ul Eth ea ds . '1'hi s i s t h e raa i .
n r ea s o n
why warships frou cruisers on up should also be attacked with
high - explosive uo nbs , even thou h the sinkin of suc h vessels by
a sin l e hi h - explosive bamus ,
h.wever l arbe it u ay be , seems
improb a ble .
A bomb capable of penetration into a vessel vrill
always be selected on
th e basis of its capability to pierce the
s zr on ,
e s t a r mor e d ; l a t e oti dec k o f th e ve s s e l .
Si a c e li owe ver t n e •
hor i z ont a l pr o t e c t i o n of cna j o r wa r s l-ii ps i s f or me d by s e ve r al
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