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PROJECTILE, 155mm, SMOKE, M116 & M116B1 |
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Filler and Weight | ||
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| HC, Colored Smoke, | |||
| Body and Overall Weight | |||
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| Color | |||
| Type of Round, DODIC | |||
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| Description: |
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| This base-ejection type projectile is a hollow steel shell containing four canisters of chemical smoke compound. The canister filler may be wither hexachloroethane-zinc (HC) or a smoke mixture in colors of green, red or yellow. The canisters are stacked with the projectile and each has a perforated central tube so that in the stack a flash tube is continuous through the contents. The front canister is cone-shaped to conform to the curvature of the projectile case. AN expelling charge of black powder is contained in the nose of the projectile under the fuze cavity. The fuze cavity is fitted with a lifting ring plug for shipment and handling. A baffle plate with a central hole near the flash tube separates the expelling charge from the first smoke canister. A rotating band with a protective grommet for shipment and handling encircles the projectile near the base. The base is closed with a metal closure disk and threaded plug. |
| Use: |
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| Functioning: |
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| When the weapon is fired, the burning propellant generates rapidly expanding gases to propel the projectile through the barrel with the velocity required to reach the target. The rotating band engages the barrel rifling to impart spin to the projectile. The rotating band also forms a seal to prevent escape of gas pressure past the projectile. Functioning of the fuze ignites the expelling. The expelling charge flashes through the central tube to ignite the smoke canisters. An effective smoke cloud is produced within 30 seconds, and maximum smoke emission occurs in about one minute. |
| Munition Components: |
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| Data Source: |
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| TM 43-0001-28, Army Ammunition Data Sheets, Artillery Ammunition, April 1977 |
| Munitions Tech Data Sheet: |
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| 155mm-M116B1.pdf |
