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Sighting systemsberedundant in theevent ofpower
loss orinoperable power source
Adaptation of"did hit data" toaccurate blind fire ta-
bles
Fire weaponwithout primary power using established
firing tables in simulated night conditions
SOP of weapon, firecontrol computer, andrelatedrange
finding equipment as pertaining to avalanche control
Maintenance of systemsand how they relate tofunc-
tions of weapon/vehicle
Maintain Army or establish new firing procedures that
will not compromise safetyfor crew orpublic in any
way.
Prepare to fire

Advisors recommended a fixed procedure for "prepare to
fire". Tank guns and sights are designed to be extremely
accurate over long distances. Because of this several me-
chanical, hydraulic, andelectrical systems have been built
into the firing system. One or all canfail and the weapon
canstill sustain fire, however accuracywill diminish. How
much accuracy diminishes? At distances over 2.5 miles
we witnessed nochangein shot placement, hitting another
tank in the same hole repeatedly. The prepare to fire
examines key aspects between fire control systems and
weapon.
We have modified this procedure examining elements
that are critical to avalanche control needs and what
method of engagementare beingused. Whenutilizingblind
fire data prepare to fire concentrates on recoil compensa-
tor operation, breachfunction, azimuth indicator is zeroed
on proper reference point, and gunners quadrant end for
end test This takes less than 5 minutes to accomplish.
Sighting

Primary site for weapon is the passive 105-D sight. This
sight is similar to recoilless and howitzer sights with a few
exceptions. In this sight several rangelines are shown cor-
responding to each type of ammunition the gun canfire.
If distances areknown to targets place rangeline on target
and fire. If not known, use laser to acquire range, place
range lines on given range and fire.
It's important to remember, laser beamof the laser range-
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Wedesigneda five-point planto make it difficultto start,
operate, or access the vehicle or weapon systems. By ex-
ceeding DOD requirements for storage of tanks they ap-
proved security proposal.
In many respectssecuring a tankis easier thanrecoilless
rifles, especially75mm. Recoillessrifles canbeeasilytrans-
ported without notice in a pickup. Unlike a tank....
someone will see it!
One stigma we hadto overcome was, "a tank, a weapon
of war, whatwill thepublic think?" I think recoillessrifles
had the same growing pains, now they are accepted. If it's
acknowledgedasan obsolete weaponbeingusedfor protec-
tion of life and property, it will gain acceptance. These
vehiclesarebeingdumpedinto the oceanby the thousands.
Discardingunessentialmulti-million dollar vehiclesby this
approach doesn't seem like wise use of tax dollars.
Implementation of weapon test

Our intentions from the inception of this project was aug-
mentation of recoilless rifles. Many areas in Washington
State can not support an other type of weapon without
modification to terrainor wideningof roads, both extremely
expensive. If annualrecoilless ammunition consumption
could be cut by using other types of weapon systems in
area that could accommodate, it would prolong recoilless
ammunition for critical operational areas.
We've been comfortable with 105mm ammunition's re-
liability in stabilizing snowslides. Implementationof how-
itzers has added to this confidence. When the tank idea
first came to mind we were thinking of weapon system, it
just happenedthe weaponcame on tracks. For this reason
vehicle performance wassecondary to overall weaponand
ammunition performance.
Redundant information had been confirmed through
many independent sources before testing took place, but
we still wanted conformation of questions and proof of
concept.
AREAS OF VERIFICATION OR ESTABLISHMENT:

* Ammunition function (high order) in altra-soft environ-
ment such as snow

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