M144M155
U.S.N.B.D. - UNITED STATES - BOMBS AND FUZES; PYROTECHNICS
SECTION III - BOMB FUZES

DATA:

  

U.S. ARMY FUZE

 

  

M152, M153

BOMBS USED IN

 M23 Indeniary Cluster

 

 Adapter

FUNCTIONING

 Aerial Burst, 5-92 sec.;

 

 or impact instantaneous

M152 (Service)

 

 if slider aligned.  

ARMED CONDITION

 When safety collar and

MECHANICAL TIME, AERIAL BURST

 

 arming pin are both out,  

 

 and detonator is aligned  

 

 under firing pin.  

FUZES USED WITH

 M145 nose fuze  

ARMING TIME

 Approximately 260 vane  

 

 revolutions  

VANE SPAN

 3 in.  

MAX. BODY DIAMETER

 1.93 in.  

OVERALL LENGTH

 6.2 in.  

MATERIAL

 Aluminum alloy body with zinc or cadmium plated steel striker.

GENERAL:

The M152 is the same as the M145 decribed on page 183.

The M152 is reversed vanes so that it will properly arm as a tail fuze. In addition a change was made in the construction of the thurst bearing for the arming vane ass-embly, to insure free rotation with the reversed thurst direction of a tail fuze as compared with a nose fuze. (See drawing on opposite page).

The M153 is the same as the M145 except that the vanes are reversed so that it will properly arm as a tail fuze. The vanes of the M152 and M153 are painted red to dis-tinguish them from nose fuze.

OPERATION:

The operation of both of these fuzes is the same as the M145 on page 183.

REMARKS:

The M152 will replace the M153. The M153 fuze is being manufactured to provide tail fuzes to meet requirements pending availability of the M152.

The M153 is not procured for Naval use.

M144M155