Figure 1-5. Rocket motor, rear view.

TM 9-1375-213-12-1

Figure 1-5. Rocket motor, rear view.

their conduit to the delay blasting cap in the

(2) Each rocket motor has a permanently at-

booster.

tached firing circuit which is electrically wired to

6. A yellow-tagged safety plug is con-

permit initiation as a single kit or as a part of a

nected to the safety plug connector and a white

series circuit when a number of kits are employed

tagged continuity plug is connected to the interkit

together.

connector.

(a) The circuit consists of a firing lead (with

protective sheath and firing lead plug), 10-foot

NOTE

(300 centimeters) firing cable with firing cable

To remove the safety plug, just pull it out

connector, rocket motor initiating wire, detonator

of its connector. The outer collar on the

wires, safety plug connector and interkit connec-

safety plug is NOT threaded. It is free to

tor (fig. 12).

rotate but does not touch the safety

1. The firing lead is used to splice the fir-

plug's mating connector. To insert the

ing circuit to the field firing lead.

safety plug in its connector hold it by its

2. The firing lead plug is connected to the

body (not its outer collar) and turn it so

firing cable connector.

that its notch aligns with the mating

3. The firing cable ends in a junction con-

guide pin in the connector and push in.

sisting of the wires for the rocket motor initiating

(b) The yellow-tagged safety plug prevents

wires, detonator wires, safety plug connector, and

firing of the kit and must be removed in either

interkit connector.

the single or multi-kit hookup. The continuity

4. The rocket motor initiating wires are

plug must be installed in the interkit connector

taped to the outside and inside edge of the nozzle

in order to fire a single kit. In order to fire a multi-

and connect to the M2 squibs in the rocket motor

kit hookup, the kits must be installed in a single

initiator.

5. The detonator wires are routed through

series circuit as follows:

1-7