US Bomb, 250 lb GP, AN-M57, AN-M57A1

 

1411-F282

Description

These bombs are all general purpose high explosive bombs.

The standard color scheme employed on these bombs since 11 March 1942 has been an olive drab body with yellow bands to indicate the HE filler. The banding system for Amatol and TNT fillers is a one inch yellow band at the nose, a one-inch yellow band at the tail of the bomb body, and a 1/4-inch dotted band at the center of gravity. Because Composition "B" is more sensitive and requires more careful handling, it is given an additional marking consisting of a second one-inch yellow band at the nose and at the tail. On these bands "Comp. B" is stenciled in black paint. Recent production eliminates the 1/4-inch band, since the center of gravity is located accurately enough by the single suspension lug.

See Also

General Information, AN Series Bombs

Nose, Impact, AN-M139A1

Nose, Impact, AN-M140A1

Nose, Impact, M149

Nose, Impact, M163

Nose, Impact, M164

Nose, Impact, M165

Nose, Impact, Mk 239

Nose, MT, M135A1

Nose, MT, M136A1

Nose, Proximity, T50E1

Tail, Delay, M123A1

Tail, Delay, M132

Tail, Impact, AN-M100A2

Tail, Impact, M112, M112A1

Tail, Impact, M115

Tail, Impact, M160

Source(s)

Collaborative Ordnance Data Repository

TM 9-1325-200, Bombs and Bomb Components (1966)

OP 2216, Volume 1 - Aircraft Bombs, Fuzes, and Associated Components (1960)

OP 1280, Aircraft Bombs (1955)

OP 1664, Volume 2 - US Explosive Ordnance (1947)

USNBD - Bombs and Fuzes, Pyrotechnics (1945)

TM 9-1904, Ammunition Inspection Guide (1944)