Nose, Impact, AN-M110A1, M110 (T24)

 

1411-334

Description

The impact nose fuzes of this type are vane operated and delay armed. They act to detonate the bomb instantaneously upon impact.

Although very similar in external appearance, the AN-M110A1 differs in numerous features from the AN-M158.

The AN-M110 and AN-M126 are identical in both construction and operation. The only difference is that the booster is eliminated from the AN-M126A1. Instead of the booster, a steel cylinder, having the same dimensions as the booster, is screwed into the base of the fuze body. This steel cylinder contains an enlarged firing train consisting of primer, upper detonator, and lower detonator, which is seated against the tetryl burster of the chemical bombs.

The original designs, M110 and M126, had more teeth on the gears, and consequently required 570 vane revolutions to arm. They also had three safety blocks, each 120° segments, and the arming sleeve fitted in a groove in the blocks in the unarmed position, preventing them from falling out. The original designs also had larger vanes.

If the striker head is flush with the fuze body, the fuze is in a fired condition. In such condition, the striker should not be pulled away from the fuze, as the firing pin is sensitive and withdrawal might create sufficient friction to ignite the primer.

See Also

Nose, Impact, AN-M126A1

Nose, Impact, AN-M158

Source(s)

MIL-HDBK-146, Fuze Catalog (1982)

TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)

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

TM 3-400, Chemical Bombs and Clusters (1957)

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

USNBD - Bombs and Fuzes, Pyrotechnics (1945)

TM 9-1904, Ammunition Inspection Guide (1944)