| Places | |
|---|---|
| Accession Number | REL/14042.001 |
| Collection type | Technology |
| Object type | Artillery Accessory |
| Physical description | Metal |
| Maker |
OTO Melara State Arsenal, United States |
| Place made | Italy, United States of America |
| Date made | 1964 |
| Conflict |
Period 1970-1979 Vietnam, 1962-1975 |
Charge Scale Calculator Number 6 & 7 for 105 mm Cartridges for L5 Pack Howitzer
Description
Number 6 and 7 charge scale corrector used by L 5 Pack Howitzers for 105 mm cartridge cases for firing M1 high explosive and smoke projectiles when using the M520 fuze. The corrector is made from aluminium and operates on the principle of a circular slide rule. Graduations are in meters for range calculations and meters per second for velocity corrections. Markings - CH 7 AND CH 6 CHARGE SEVEN, CHARGE SIX; INDICATOR FUZE FOR GUN EQUIPMENT 105 MM L5 SHELL, HE, FUZE M520, SHELL SMOKE, WPM 60 PLATE, RANGE SCALE FL15504 1964. There are yellow and purple colour coded indicator rings for charge identifications.
History / Summary
Charge corrector circular slide rule issued to Australian Army L5 Pack Howitzer units during the Vietnam conflict to calculate charge increments for artillery fire support engagements.