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Change 1, 30 June 1995
h) Consider a built-in communication system so the RSO can
communicate with all parts of the range.  The user may prefer to furnish
portable radios and battery operated loud hailers.
i)  Provide a weapon clearing barrel at the exit from the firing
See Figure 2.2-20 for details.
Vertical Clearance.  On most weapons, DF could reach 1500 meters
vertically.  RC could reach 300 meters.  Normal range clearance for planning
(assuming proper range control) would be 500 meters.
Types of Ranges.
The three basic types of outdoor SAR's are:
a)  Open (0) has an uncovered firing line(s) and, highly
recommended, but not required at this time, an impact structure to concentrate
cleanup efforts.  SDZ distance of 100 percent of the maximum range of the most
powerful cartridge to be used; see Figure 2.2-1, 2.2-2, or 2.2-3. Note that
"0" SAR's have wider fans and increased lateral spacing as opposed to baffled
ranges.  No effort is made to contain DF or RC.  "0" SAR's are generally
required for moving target systems; see Figure 2.2-3.  There must be
sufficient land available for a full sized SDZ.
b) Partially baffled (PB) has a covered firing line(s), side
containment, overhead baffles (OB), and impact structure.  SDZ distance of 50
percent of the maximum range of the most powerful round to be used; see Figure
2.2-4.  Additional components are provided to prevent escape of DF. From
whatever location a weapon may be expected to be discharged, "the weapon can
see no blue sky."  Available land area will not support a full sized SDZ.
Placing a moving target system in a "PB" SAR creates numerous technical
problems (SDZ fan and OB columns).  Consult with NAVFACENGCOM Code 15C if
moving targets are required.
c) Fully baffled (FB) has a covered firing line(s), side
containment, OB, ricochet containment, a clean, smooth floor surface, and a
covered impact structure or bullet trap.  The SDZ is 45 meters; see Figure
2.2-5.  Additional components are provided to prevent escape of RC as well as
DF.  Available land area is extremely limited.  Type "FB" SAR's generally
cannot be used for moving targets or rapid fire (machine guns) because of
baffle columns and RC geometry.
Geometry.  Vertical control is based on the firing line floor
surface (FLFS) equals 0.00 meter, (refer to par.  Horizontal
control is based on measurements taken from the rearmost firing line (FL).
The various range components (par. 2.2.11) are located as follows:

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