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National Stock Number:
1220-01-339-4674
Federal Supply Class:
1220
National Item Identification Number:
013394674
Description:
SCALE,GRAPHICAL FIRING
Detail:
A DEVICE DESIGNED IN THE FORM OF A SLIDE RULE, HAVING ONE OR MORE SCALES OF VARYING RANGES, ON EITHER SURFACE, AND A PLASTIC CURSOR WITH A MATTE TO RECEIVE PENCIL MARKINGS OF RANGE CORRECTION. IT IS USED WITH VARIOUS TYPES OF GROUND AND SKY-SWEEPER WEAPONS TO DETERMINE QUADRANT ELEVATION, ANGLE OF SIGHT, OR DRIFT, AND TO CALCULATE THE TRAJECTORY OF A PROJECTILE IN RELATION TO A TARGET. IT MAY CONTAIN SCALES FOR YARDS TO METERS CONVERSION AND GAGE POINTS WHICH ARE USED IN CONJUNCTION WITH THE CURSOR AND RANGE SCALE TO CONVERT DATA GIVEN IN METERS TO YARDS. SCALES MAY BE IN MILS FOR DETERMINING HIGH ANGLE FIRE, TIME OF FLIGHT, DEFLECTION SHIFT, AND THE LIKE.
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Manufacturer Information:
| 12944306 | 19200 | US ARMY ARDEC RDECOM | | 12944306 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL |
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Techincal Specification:
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | C/OHOLLOW BRASS RIVET;CURSOR TRANSPARENT PLASTIC THICKNESS 0.009 NOMINAL,DIA 8.750 NOMINAL;NOMOGRAPH FOR RANGE (METERS)/ELEVATION (MILS);PLASTIC T HICKNESS 0.011 NOMINAL,DIA MATERIAL TOWITHSTAND TEMPERATURE -46 TO +63C |
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