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U.S. BOMB, 750-POUND, GP, M117, M117A1, M117A1E1, M117A1E2, M117A1E3, M117A2, M117A3

Type

Bomb

Country of Origin

United States

Countries Used In

None found

Descriptions
Description

These are general-purpose (GP) high-explosive (HE) bombs which may use proximity, mechanical, or electric nose and tail fuzes. When used as an M117D (destructor), the M117 bomb has a fuzing system actuated by magnetic/seismic influence. Both fragmentation and blast effect are produced by these bombs.

Assemblies

No data

Method of Operation

The M117-series bombs may be fitted with either a conical or retarded (Snakeye) fin assembly. All bombs may have an arming wire assembly, lanyard, or an electrical charging receptacle installed, depending on the fuzing employed. The charging well between the suspension lugs may be fitted with either an electrical charging receptacle with an arming safety switch installed or a lanyard, or closed by a plug to provide watertight integrity. The suspension lugs are 356 millimeters (14.00 inches) apart. The conical fin assemblies for the bombs have access doors, secured by quick-release fasteners, to give access to the tail fuze cavity. The arming/drive assembly for a mechanical fuze extends through the side of the fin assembly. The nose fuze cavity may contain either a fuze, a proximity sensing element, or a nose plug (with or without fuze).

Structure

No data

Markings

The bombs are painted olive drab and have yellow markings which include the type of explosive charge, the national stock number (NSN), the average weight, and the year loaded.

Alert

No data

Specifications
Width/Diameter (mm) 406
Height/Length (mm) 1200
Weight (g) 334000
Metallic Weight (g) No data
Explosive Weight (g) 175000
Frag Range (m) 725
Charge Weight (g) 2268
Component Materials

The bomb body and conical fin assembly are steel. The MAU-91 fin assembly is aluminum.

Case Materials

steel

Detectability

No data

Explosive

Minol-2

Transport

No. Blow in place.

Hazard

Antidisturbance
Clockwork/Mechanical Time
Cocked-Striker
EMR
Ejection
Explosive (HE)
Frag
Magnetic
Movement
None
Proximity (VT)

Images
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Disposal
Neutralization

Counter charge main charge

Disarming

No data

Placement

Between the lugs