TM-9-2350-311-10

TM-9-2350-311-10 - Page 559 of 775

TM 9-2350-311-10

5-2 AUTHORIZED MUNITIONS — CONTINUED

5-2.2

Authorized Fuzes — Continued

c. M739 or M739A1 Point Detonating Fuze

The M739 and M739A1 fuzes (3) are the latest improved version of the selective impact fuze. These fuzes have a solid

aluminum ogival body with a threaded base. The fuze contains a rain-insensitive fuze head (4) that allows firing in

heavy rain without premature fuze functioning of the round of ammunition. These fuzes can be set for SQ (superquick)

or DELAY action by turning the setscrew. The M739A1 fuze contains a new impact delay module which provides more

effective functioning in the DELAY mode. In addition to the stamped markings, the M739A1 fuze features anodized

green for positive identification of fuze model.

d. M501 or M501A1 Mechanical Time and Superquick Fuze

Dropping or rough handling of a projectile assembled with M501/M501A1 MTSQ fuze may result

in fuze functioning and expulsion of projectile base plate and contents. When handling

projectiles assembled with this fuze, exercise extreme care to protect the fuze from impact.

Keep pull wire on fuze in place until immediately prior to firing.

The M50

action. It

1 or M501A1 fuze (5) has settings for time action (2 to 75 seconds) and an impact element for superquick

is used only with the M116 and M116B1 smoke projectiles.

5-31