Description
Fuze M43 series is a mechanical time type. All modifications provide for time setting to 30 seconds, and are without an impact element. The fuze originally was adopted for antiaircraft use with medium caliber shell fitted with a suitable booster (the M20) but now is assembled with Booster M21 as a fixed component.
There are several modifications to Fuze M43, as follows: the change from Fuze M43A1 to M43A2 consisted of a bevel in the shoulder so that the fuze could be screwed into Booster M23. The change from Fuze M43A2 to M43A3 resulted from a change in the method of regulating movements. The change from Fuze M43A3 to M43A4 resulted from the decrease in minimum functioning time from 1.67 seconds to 0.6 seconds.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Nothing else to see.
Source(s)
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1300-203, Artillery Ammunition (1967)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)
TM 9-1904, Ammunition Inspection Guide (1944)
