spaced 14 or 30 inches apart, depending upon the size
of the bomb. Suspension lugs (fig. 1-16) are used to
attach the weapon to the aircraft bomb racks. An
internally threaded well for the installation of a hoisting
lug is located between the suspension lugs, at the
center-of-gravity (CG) position on the bomb. The
hoisting lug is used for handling purposes only.
REVIEW NUMBER 4 ANSWERS
A1.
All electric capability for Mk 80 with either
conical or retarding fins, thermally protected
bombs, and laser-guided bombs is provided
by the Mk 376 electric bomb fuzes.
A2.
No unusual RADHAZ precautions are taken
when using the Mk 376 fuze because it is
classified as HERO SAFE.
A3.
The Mk 376 electric fuze and FMU 139 are
used for retarded delivery of the Mk 80
(series) bomb.
A4.
The functions of the Mk 31 safety device are to
adapt the fuze to the fuze well of the bomb,
mechanically safe the fuze, and to unlock the
timer-decelerometer.
A5.
The Mk 122 Mod 0 arming safety switch is
used to open a circuit and provide a RADHAZ
shield to prevent electromagnetic radiation
from entering the fuze circuits.
A6.
The Mk 43 Mod 0 target-detecting device is
used to provide airburst capability for
electrically fuzed Mk 80 bombs.
A7.
A thermal battery, initiated by a +300 volts dc
or striker rod, is used to power the internal
circuitry of the TDD.
1-19
Figure 1-16.—Suspension lug installation.
