/
Ie greSSD
Brpeoonser
15.
The gun-type models, An stockpile now are the Mark 8
(bomb for. subsurface detonatfin)
DELETED.
and
the Mark 9 (280 mm projectile) DELETED
Status of Work on Production Models
16.
Mark 4 (implosion-type bomb, outside diameter 60 inches, .
approximate weight 10,800 pounds).
Conversion of Mark 4 bombs to
Mark 6 was resumed following a temporary postponement because of
difficulty with the new fuze for the Mark 6,
Routine functional
surveillance of Mark 4 components has been suspended as 42 result
of progress in the eonversion program, which is now scheduled for
completion in May 1953, rather than June 1953.
17.
DOE AECHTERS
Mark 6 (Amplosion-type bomb, outside diameter 60 inches,
approximate weight 8,500 pounds).
The conversion of Merk 6 Mod 0
bombs in stockpile to the Mark 6 Mod 3 has been completed sjry
pie.
provements,
/
Several additicnal in-
principally changes in the fuzing system, are under
development and will be incorporated in stockpiled wearons prior
to the advent of the Mark 13 bomb.
18.
Merk 5 (implosion-type bomb, outside diemeter 44 inches,
approximate weight 3,100 pounds).
This weapon is being stockpiled.
The cartridge mounting assembly is being modified to permit use
both as a bomb component and as a rissile component.
19.
ark 7 (implosion-type bomb, epproxinate outside diameter
30 inches, aprproxinate weight 1,600 pounds).
ehaaAtratian
This wearcr is being