can be either point detonating (PD) or base detonating.
3. Model of round (Cartridge M888, M49A4,
M302A1, M83, etc.).
Point-detonating fuzes that function immediately upon
impact are called superquick (SQ). Point-detonating
4. Ammunition lot number (AMM LOT
fuzes that have some penetration into the ground before
PA-36-339). This is a number assigned to identify each
functioning are called quick (Q). Point-detonating fuzes
group of rounds manufactured.
that enter the ground before functioning are known as
5. Warning label, if required. Some rounds have a
delay (D).
warning label fixed on the body of the round. This
The GRADUATED TIME FUZES cause the round
warning label specifies the maximum propellant charge
to function at a prescribed (set) time after the round is
to be used when firing these rounds in the 60-mm mortar.
fired. Graduated time fuzes may function at the
prescribed time only. These fuzes are known as time (T)
FUZES
fuzes. Graduated time fuzes may also have an impact
element that causes the fuze to function on impact if it
The fuzes used on mortar rounds are designed to
does not function at the set time. These fuzes are known
activate the fired round at the desired time or place (fig.
as TIME AND SUPERQUICK (TSQ) FUZES.
14-11). There are three types of fuzes used with the
60-mm mortar ammunition: impact, graduated time,
The VARIABLE TIME FUZES have their own
and variable time.
radio transmitter and receiver. They transmit a radio
The IMPACT FUZE causes the round to function
signal. This signal is reflected back to the fuze. As the
when it comes in contact with an object. Impact fuzes
fuze (round) approaches an object, the strength of the
Figure 14-11.--Fuzes.
14-6