The lower firing lanyard is attached to the
connector link next to the suspension lines. Two
suspension lines and a loop from the parachute
hem are attached to each slug. A cover plate holds
the two lines and loop in the channels of each slug.
When actuated, the parachute canopy deploys
by either an internal pilot chute or by the external
pilot chute. Just prior to full canopy and
suspension line deployment, the firing lanyard
pulls the firing pin from the firing mechanism.
This releases the striker, which strikes the cartridge
primer. As the cartridge fires, the 14 slugs are
propelled outward. They simultaneously drag the
attached suspension lines outward in a 360-degree
spread. This firing sequence occurs prior to any
tension being placed on the suspension lines.
Spreading is stopped when tension starts to build
up in the suspension lines; so, at high speed it
produces a 4-foot diameter mouth, and at low
speed, it produces an 8-foot diameter mouth.
In the event of a cartridge malfunction, a
fail-safe backup subsystem operates. After the
firing pin is withdrawn, the firing lanyard exerts
25 to 38 pounds of tension on the fail-safe
assembly sleeve, which retracts the shear band
assembly. This releases the slugs and allows the
canopy to inflate aerodynamically.
IDENTIFICATION AND HANDLING
An identification tag is attached to the
spreader gun and contains the following data:
manufacturers part number,
revision status, serial number, date of manu-
and name and address of the
A warning label is sewn on each side of the
sleeve protecting the firing lanyard and to the
outer pack assembly. This label reads as follows:
THIS PARACHUTE CONTAINS A
CARTRIDGE ACTUATED DEVICE.
FOR HANDLING INSTRUCTIONS SEE
PARACHUTE PACKING MANUAL.
There is a tag attached to the safety pin that
reads: REMOVE PIN BEFORE PACKING.
Assemblies shipped without a cartridge must have
a shipping plug installed.
Refer to NAVAIR 11-100-1-1 for the shelf/
installed life of the spreading gun cartridge. The
service life expiration date (month and year) is
marked with indelible ink on the side of each
NOTE: If the date the sealed con-
tainer was opened is not available, the
INSTALLED LIFE is computed from the
date of manufacture as determined from
the lot number.
You should enter on the Parachute History
and Record Card the date of primary installation
of the spreader gun to the parachute canopy, the
lot number, expiration date, part number, CAD
DODIC, and date of manufacture or overhaul of
Treat the spreader
strument. The spreader
as class C ammunition
gun as a delicate in-
gun cartridge is treated
in accordance with the
general safety precautions given in the cartridge
manual (NAVAIR 11-100-1.1).
YOU MUST ALWAYS REMEMBER
THAT THE BALLISTIC SPREADING
GUN IS LETHAL WHEN ACTIVATED
WITHOUT A CANOPY ATTACHED.
DO NOT REMOVE THE SAFETY PIN
UNTIL THE PROPER TIME AS
PRESCRIBED IN THE PACKING
DO NOT REMOVE LANYARD RE-
TAINING PIN WHEN REPLACING
UPPER RETAINING CORD.
NOTE: Be sure that the cartridge
service life will not expire prior to
the next service check. Be sure the
cartridge expiration date is entered
in the Parachute History and Re-