Description
The Nose Clockwork Aerial Burst Fuze M127 is formed by assembling the booster and detonator assembly from a Nose Mechanical Impact Fuze AN-M110A1 to a M111A2 fuze body. The result is a mechanical time fuze with an 18-gram tetryl booster instead of a black powder booster such as in the M111A2. The Nose Clockwork Aerial Burst Fuze M138 is the same as the M127, except that the M138 has only 7 grams of tetryl, the balance of the space being taken up by an inert day pellet (M127 booster was too powerful for Cluster Adapter E6B2 and damaged the bombs in the cluster; hence, reduction of tetryl.)
The original Nose Clockwork Aerial Burst Fuze M111 had a setting range of from 15 to 93 seconds, and, because of the greater number of teeth on its gears, required 570 vane revolutions to arm.
M111A1 reduced minimum .setting time on the scale from 15 to 5 seconds.
The M111A2 booster contains 70 grains of black powder.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)
OP 1664, Volume 2 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
