are 576 rounds in the drum and a total of 100 rounds in
the chutes, transfer adapter assembly, and gun. The
system can be set by ground maintenance personnel for
unrestricted firing, or for rounds limit of 50, 100, or 200
rounds per burst. The HOOK/GUN panel contains a
gun-rounds counter that gives a digital readout
countdown of the rounds remaining in the gun system.
The clearing sector holdback assembly and safety
pin (fig. 6-16) is used to clear the gun manually. With
the clearing sector holdback assembly installed, the
breech-bolt assemblies are diverted to the clearing cam
path. Keep the clearing sector holdback assembly and
safety pin installed until just before aircraft flight.
REVIEW NUMBER 5
Q1.
In F/A-18 aircraft, fired projectiles exit the
aircraft through the gun blast diffuser
assembly
that
is
located
________________________.
Q2.
What maximum number of rounds does the
M61A1 gun system hold when used on the
F/A-18 aircraft?
Q3.
What
component,
located
in
the
gun
compartment, can be preset to limit the total
number of rounds the pilot can fire?
Q4.
When used on F-14 aircraft, where is the
M61A1 gun system mounted?
Q5.
What is the maximum capacity of the gun
system when used on the F-14 aircraft?
6-17
Figure 6-15.—F-14 M61A1 gun installation.
Figure 6-16.—F-14 clearing sector holdback assembly and
safety pin.
