Clear All Weapons



THE FIRING LINE IS CLEAR, ^au/fon; The control tower operator will orally command "LOCK ALL WEAPONS" prior to all move out commands.

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99. General

The soldier's inability to successfully detect and engage targets during periods of limited visibility has slways been a major concern of commanders. To help overcome this handicap more time has been devoted to the fundamentals and their ap-plication, practice firing during periods of darkness, and subsequently the soldier*« proficiency is tested in night record qualification. The night qualification score is then added to the day qualification score and a qualification rating is awarded on the basis of the combined score (qualification criteria will be discussed in para 10M.

100. Fund amenta 1«

a. Target Detection. Trying to detect a turret during the day is difficult enough but at night it becomes even more difficult. In order for a soldier to see targets at night, he must apply the three principles of night vision. iFor more detailed information on the three principles of night vision see

(11 Dark adaptation.This is the process which conditions the eyes to see under low levels of illumination. It takes the eyes of the average person approximately 30 minutes to become 98 percent dark adapted in a completely darkened area.

(2» Off-center vision. During the daytime when an individual looks at an object, he looks directly at it. However, if he did this at night he would only see the object for a few seconds. In order to see this object for any length of lime, he must look (t to 10 degrees away from this object while concentrating his attention on the object.

Scanning. The act of scanning relates to the short, abrupt, irregular movement of the firers eyes every 4 to I 0 seconds around an object or area.

h. Firing Position. The recommended firing position for used tiring periods of limited visibility is the prone supported position (fig 1191. This position, when used during periods of limited visibility, differs slightly from the prone supported |tosition discussed in chapter 3. The reason for this is that an individual rannot use hi* night« during periods of limited visibility. To effectively engage targets during periods of limited visibility, the firer assumes the prone supported firing position discussed in chapter 3. establishes a raised stock weld (looks 2 to 3 inches above the rights on a level plane with the barrell. points the weapon at the target, and fires. To obtain optimum result* the firer should keep both eyes open and his head« and rifle should move as (me unit.

101. Training Facilftii* and Kqulpmmt i a. Ring* Construction. When constructing a night fire range the following factors must be ronsidered:

111 Construct on level or slightly rolling terrain, ft should lie away« or shielded, from artificial light sources.

121 Have a dark background to prevent nkyllning the targets.

1.11 Have an approximate depth of 100 meters. To aid in individual target identification, the lateral distance between the target holding mechanisms and firing f Hunts should be a minimum of 5 meters. (When sufficient terrain facilities are available the lateral distance may be increased proportionately.!

(41 Firing line and target should be on the same plane.

(.)> Funding and /or terrain restrictions may necessitate variations in range construction: however, the examples listed below will generally satisfy all circumstances:

Troops Carring The Rifle
Figure 119. Prone supported night fire position for M ¡4 rifleft).

(a) Figure 120 illustrates a range capable of accommodating 50 firers simultaneously. This range features one bank of 50 targets (5 meters apart) and two firing lines. Troop movement is to the rear from the 25-meter firing line to the 50-meter firing line. This range configuration requires 50 M31A1 target holding mechanism and four M40 counter devices.

(bf Figure 121 illustrates a range capable of accommodating 50 firers simultaneously, but it differs from the range in figure 94 in that there are two banks of targets (50 targets at 25 meters, and 50 targets at 50 meters! and one firing line which eliminate» the requirement for troop movement during the conduct of firing. This range configuration requires 100 M31AI target holding mechanisms and eight M 40 counter devices.

(c) Figure 122 illustrates a range capable of accommodating 50 fire» simultaneously, but it differs from therangea discussed in figures 117 and 188 in that there are two banks of targets (25 targets at 25 meters, and 25 targets at 50 meters} and one firing line with troop movement being later«). This range requires 50 M31A1 target holding mechanisms and four M40 counter devices.

Note: Rack of tha rup configuration» discussed above hive sdvanUfea and / or dfaadvaotafas over each other in a given situation. The »election of one over the other la a kmal »election and will be dictated by the local oonditkma li.e., funding and terrain available).

b. Logistics, 111 The range ttsed for night record fire must be equipped with the modified M31A1 targ„ holding mechanisms and the M40 counter devices. Targets used should be the standard E-type silhouette, fastened to the modified M31A1. The M31A1 should be countersunk to a point where it does not protrude above ground level when the target is in the down position ifig. 1231. If for some reason the M31A1 target holding mechanisms must be installed above ground level, a protective berm must be built in front of them. The protective berm should be no higher than 1 foot. A piece of boiler plate or concrete slab should be iraplaced within the berm to preclude the berm from being eaten away by prolonged firing (fig 124).

Target Holding Mechanism M31a1



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