Rockets range in size from small AT weapons such as the 66-millimeter LAW through the 298-millimeter multiple-
launch rocket system (MLRS). They are classified into two types based on their mode of employment. One type
is fired from the ground. The other type is aircraft-delivered (such as the 2.75-inch Hydra system).
66-Millimeter LAW. One of the two small ground-to-ground rockets currently in the Army inventory is the 66-
millimeter LAW, shown in Figure 2-48. The M72-series HEAT rocket is designed for use against armored targets,
bunkers, and other light field fortifications. It is issued as a single-shot, shoulder-fired weapon consisting of a
launcher and a rocket. The rocket body is constructed of steel, and has an aluminum ogive and a PIBD
piezoelectric fuze. The fuze has a mechanical inertial graze element for secondary functioning. The rocket is fin-
stabilized during flight. The color code for the rocket is a black body with yellow markings. The DODICs for the
M72 series depend on the specific model number. They are H553, H554, H555, H557, and H568.
M74 Incendiary Rocket. The other small ground-to-ground rocket is the M74. This is an incendiary
(TPA/TEA) rocket used to defeat or neutralize hard, soft, or jungle targets. It is issued in four-round clips. This
rocket has an aluminum body and a BD fuze with a graze element. This rocket is also fin-stabilized. The color
code for the M74 rocket is a red body with yellow markings. Its DODIC is H110.
Multiple-Launch Rocket System. The only large ground-to-ground rocket currently in use is the 298-
millimeter MLRS. The MLRS rocket is a tube-launched, fin-stabilized, indirect-fire, free-flight (unguided) rocket.
There are two warheads used on the MLRS. One warhead contains 644 M77 submunitions. The other contains
28 AT2 mines. There are six rockets per launch pod, and the self-propelled launcher-loader (SPLL) can hold two
pods. The SPLL and the launch pod are shown in Figure 2-49. The color code for the MLRS pod is olive-drab
with yellow squares on opposing corners and yellow or white markings.
2.75-Inch Hydra Rocket System. The 2.75-inch rockets are the only air-to-ground Army rockets currently in
use. These rockets may be issued in a pod configuration, assembled, or unassembled. They are designed to be
fired from various fixed-wing and rotary-wing aircraft. The 2.75-inch rocket is classified as a low-spin, folding-fin,
aircraft rocket (LSFFAR). The paragraphs that follow describe the various warheads used with the 2.75-inch
The M151 warhead, shown in Figure 2-50, is a general-purpose HE warhead. It is issued under six different
DODICs based on various fuze and motor combinations. This warhead body is constructed of steel. Its nose is
threaded to accept a fuze, and its base is threaded for the rocket motor. The available fuzes include PD, PRX
with a PD or MTSQ backup, and an electronic multi-option fuze with settings for delay or superquick action. This
warhead's color code is olive-drab with yellow markings. The DODICs for the M151 warhead are H470, H471,
H489, H490, H161, and H485.
The M247 warhead, also shown in Figure 2-50, is an HEDP warhead. It is designed to defeat enemy armor and
for use against enemy personnel. The M247 may be used only with the M438 PIBD fuze. Its color code is black
with yellow markings. The DODIC for the M247 is H826.