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US Rocket Warhead, 2.75 inch Smoke WP, M259

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This rocket is used to provide a protective smoke screen. A group of rockets will provide a smoke screen for approximately five minutes. It is usually deployed from low speed rotary-wing aircraft.

The rocket warhead M259 consists of an aluminum casing, an internal canister assembly and a mechanical fuze with delay charge. The canister assembly consists of ten white phosphorous (WP) filled submunitions, a central burster, and a pyrotechnic delay detonator system. The canister is 2-1/2-in. in diameter and 16-in. long with a rear end plate containing a central burster tube and a forward end plate containing a WP filling port and a closure plug. The submunitions are perforated steel sheet formed into two sets of five pie shaped containers packed with fiberglass. The fiberglass serves as a matrix for physically holding the WP and it restricts the flow of WP during functioning to produce a greater than five min smoke source. The central burster is primacord. The pyrotechnic delay detonator system initiates the burster.

Hazardous Components

No information about hazardous components.

See Also

Rocket Motor, 2.75 inch FFAR, Mk 40


Collaborative ORDnance data repository (CORD)

TM 43-0001-30, Rockets (chg 14, 2001)