PS Magazine - TB 43-PS-680
PS, The Preventative Maintenance Monthly
ISSUE 680
JULY 2009
36
PS 680
JUL 09
37
PS 680
JUL 09
p
ilots, shooting rounds continuously from your .50-cal gun until it’s empty may be
fun, but when you’re done your gun pays the price.
Proper operation of the gun means following the burst restrictions covered on Page
1-21 of TM 9-1090-214-23&P.
For non combat (sustained): 50 rounds per minute effective rate of ±re, which means
any combination of bursts not to exceed 50 rounds within a one minute period.
For non combat (maximum): 150 round burst followed by complete cooling—
10 minutes.
For combat: Continuous ±ring is unrestricted.
Exceeding these burst restrictions will overheat the gun and lead to weapon
stoppage. It can also cause a cookoff—a round in the gun going off accidentally.
It is
not
good if water gets into openings on your airframe. So at your next aircraft
washing, cover airframe openings with aircraft covers or barrier material, NSN 8135-
00-282-0565, to keep water out.
Take care to cover the pitot static ports and tubes. That keeps moisture from
entering the lines of the pitot-static system, which will affect readings on flight
instruments like your airspeed and vertical speed indicators.
OH-58D…
continuous
firing of gun
if you want
to continue
to shoot,
move, and
communicate…
Follow burst restrictions for gun
so, I got
a little
trigger
happy.
well,
look at
what your
fun cost
my gun!
…don’t
continually
shoot with
that trigger-
happy finger.
CH-47…
Cover Openings
Before
Washing
it’s time for
another wash.
cover
my ports
first!
mechanics, you
already know high
pressure water
is not good for
your chinook or
any other bird.
if you don’t want to hear a
mouthful from the electrician
who has to drain and dry
the pitot-static system, keep
all
openings covered while
washing your bird.
Cover holes
before
washing
680.36-37.indd
1-2
6/9/09
4:45:57 PM
Click here for a copy of this article to save or email.
Click here for a copy of this article to save or email.
Back to TopBack to Top
