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purpose bombs .
This can be decis i ve for the success of an air
attack ,
if the enemy is well dug in and sFlinterproof alls
prot ec t the parked aircraft .
Fragmentation bombs proper generally do not exceed a weight of
fr mentation
33 lbs H . eavier ombs a l so exert pressure effect on ob jects near
th eir impact point and are therefore designated multip l e-purpose
bomb s .
All fragmen tation bombs have thick wa ll s and contain from
1 '
10 - 12 percent explos ve charoes in relation to their over-all
weig h t . Th e purpose of these bonbs is to produce as many effective
fragm ents as possible .
Th r fuses ust be extre ely sens iti ve ,
and thei ran ge can be considerable extended by the use of dis tanee
t uLe s an d dr a ; s t r u t s .
Or i ; i na l l y ,
t he onl y ex i s t i n ; f r agmen t a t i o o
bornb was the SD 10 ; however , single drops of this bomb ar e rare ;
i ns t ea d t : ey ar e a l s o dr o ppe d i n l ar e num'oer s i n c on t a i ne r s t o;;e t h e r
with other bombs: for iṛstance A B 2j0 's with l of the SD 10 type ,
eAZ (66)
whi c h a r e e qui ppe d wi t h E
A f us e s r a t he r t ha n t he A Z i ( ) , .
To
a n i n cr e a s i ng dea r e e h , owe v er r , . a v e c or t a r s he l l s o f 5 0 a n d SO - un
caliber as well as high - explosive shells of 38 - an l 105 - mm calibers --
ba t h of Ar my or i g i n - -
b e en tr an s f or me d i n t o S D 1 an d SD 3 as vte l l a s
SD an d SD 15 , respectively and equ i gped with membrane fuses AZ (73 )
or (66) . /i th appropriate targets ,
the SD 1 and SD 15 have proved
especially
effective.
Fragmentation bomb s are eva luated according
to the number of
fragmonts and
fragment density produced .
The latter is defined as
th a
t dis t ance reasured in me t ers f rom the point of bomb explosion
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