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It requires a deliberate pull of about 30-40 pounds to
cock and fire the system. Both cocking and firing are
accomplished by one pull of the handle. While customers
are told to pull about one foot, in fact the system
needs only about one-half inch of movement at the trigger
to detonate. Some extra slack is built into the system
to allow for easier mounting but once the wire inside
the housing is drawn tight, only an additional half
inch of movement is needed to fire the rocket.
The housing attaches on the launch tube at the opposite
end of the rocket’s exit. This is a tapered end with
a screw thread onto which the housing is fitted. After
you locate this part of the rocket motor, you are ready
to act.
BRS STRONGLY RECOMMENDS using a Felco-brand
C.16 cutter (part number 39601-63-00). This can be
obtained from various sources and BRS will soon be
able to sell these directly to law enforcement, rescue
organizations, fire departments, or other emergency
personnel. It is also available from Sanlo Manufacturing
Co. (219-879-0241).
Figure 2-24. BRS Rocket Launch Tube
Figure 2-25. Disarming Rocket
2-19
TO 00-105E-9
NOTE
DO NOT ATTEMPT TO CUT THE HOUSING WITH AN
ORDINARLY BOLT CUTTER!
A bolt cutter is NOT effective at cutting the housing as it
tends to squeeze the housing out of its grip. The Felcobrand
cutter gathers the housing and cuts rather thick
cables with surprising ease. The tool sells for about
$225 plus shipping and would make a worthy addition
to any rescue organization’s standard tool box. It has
proven useful for cutting fences, steel cables, and other
obstacles which may prevent workers from reaching the
scene of an accident. The cutting edge can be replaced
if worn.
With the Felco-brand tool and after finding the launch
tube base, workers can simply cut the housing, including
the activating cable inside, near the base of the rocket
launch tube where the housing screws on the launch
tube.
Although the Felco-brand cutter can slice through the
housing and cable with ease, care must be taken not to
twist the housing while cutting it, as this may have the
effect of pinching the cable inside and possibly pulling it
enough to fire the rocket motor.
Once the housing is cut, the system is relatively harmless
and rescue workers should have no further danger
handling the accident victims or aircraft wreckage.
After removing victims to safety, workers are advised to
remove the rocket motor and to completely disarm it by
removing the rocket fuel, and firing the igniter. BRS is
also able to provide assistance to this purpose, but this
is not time critical once the activating housing has been
removed. Advice on this subject can be obtained by
calling BRS during regular business hours.
2-67. The following summary provides the minimum
steps to disarm a BRS rocket motor.
(1) Locate the BRS parachute system by finding the
parachute (see photo of container types).
NOTE
Keep in mind that a badly broken apart airplane may
have already put the activating housing into a stretched
state that may be close to detonation.
(2) Identify the rocket motor launch tube. Note where
the activating housing screws onto the base of the launch
tube.
(3) Using a Felco-brand cutter, cut the activating housing
at the base of the launch tube where the activating
housing screws onto the launch tube.
(4) Remove the still-live rocket motor to a secure place
and contact BRS for further directions about permanently
disabling the rocket motor.
2-68. For a second method, it is also possible to disconnect
the activation housing on many BRS units using
BRS Drawing 600 or Drawing 610 under the Technical
Information section, if available.
2-69. A disclaimer is necessary. While the advice above
should prevent problems for safety personnel in most
situations, the instructions given apply to BRS brand
products only. BRS dominates the U.S. market with
80% or more of all so-equipped aircraft. However other
brands called Pioneer, Second Chantz, Advanced Ballistic
Systems, Galaxy, or GQ Security have been sold
in the past. While these systems are similar, they are
not identical. BRS cannot provide positive information
on how to disarm these systems.
END OF ARTICLE.
Editor’s Note: We appreciate the information that BRS
has provided to help fire fighters, rescue squads, and
mishap responders. This greatly enhances the understanding
of these systems and will help train these personnel
in the preparedness of these dangerous systems
　
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