Basis of Issue Plan - BOIP

A.  DESCRIPTION:  THE 120MM MORTAR WILL BE A SMOOTH BORE,
MUZZLE-LOADED, LIGHTWEIGHT, HIGH-ANGLE-OF-FIRE WEAPON SYSTEM.
THE MORTAR COMPONENTS ARE A CANNON, BASEPLATE, BIPOD, AND A SIGHT
UNIT.  A SIGHT MOUNT (NSN 1240-01-M21-4251) AND A CARRIER ADAPTER
KIT ARE USED TO MOUNT THE MORTAR IN M106A2 MORTAR CARRIERS.

    B.  CAPABILITIES:  THE 120MM MORTAR IS CAPABLE OF PROVIDING
CLOSE, CONTINUOUS, ACCURATE, AND RESPONSIVE INDIRECT FIRE SUPPORT
TO MANEUVER UNIT COMMANDERS IN THE COVERING FORCE AND CLOSE
COMBAT AREAS OF THE BATTLEFIELD.  IT IS ALSO CAPABLE OF PROVIDING
TARGET AND BATTLEFIELD ILLUMINATION AT NIGHT AND DURING OTHER
PERIODS OF LOW VISIBILITY.  IT CAN ALSO FIRE SMOKE-SCREENING
MISSIONS.

    C.  EMPLOYMENT:  THE MORTAR CAN BE USED WORLDWIDE, ON ALL
TYPES OF TERRAIN, AND IN ALL WEATHER AND VISIBILITY CONDITIONS.
THE 120MM MORTAR CAN BE EMPLOYED IN THREE CONFIGURATIONS:

        (1) GROUND MOUNT VERSION.

        (2) TOWED VERSION, USING THE CARRIAGE TOWED BY THE HMMWV
FAMILY OF VEHICLES IN MOTORIZED AND OTHER NON-MECHANIZED INFANTRY
UNITS.
        (3) SELF-PROPELLED VERSION, USING THE CARRIER ADAPTATION
KIT ON THE M106A2 CARRIER.  (THE ADAPTATION KIT IS AUTHORIZED IN
MECHANIZED, ARMORED, AND CAVALRY UNITS.)

    D.  BASIS OF ISSUE:  ONE-FOR-ONE REPLACEMENT FOR THE
4.2-INCHES MORTAR (M68282).

    E.  POWER REQUIREMENTS:  NONE.

    F.  TRANSPORTATION REQUIREMENTS:  TOWED BY THE HMMWV USING
THE CARRIAGE OR CAN BE MOUNTED IN THE M106A2 USING THE CARRIAGE
ADAPTER.

    G.  PERSONNEL/MAINTENANCE IMPACTS:

        (1) OPERATOR:

            (A) CREW SIZE/MOS:  TOWED-5, CARRIER-4, MOS 11C.

            (B) TRAINING REQUIREMENTS (MOS/GENERAL):  MOS 11C
BASIC SKILLS.

        (2) MAINTAINERS:

            (A) UNIT-LEVEL MAINTENANCE:  MOS 76Y.

            (B) IDS/IGS-LEVEL MAINTENANCE:  MOS 41C AND 45B.

    H.  SPECIAL NOTES:  NONE REQUIRED.

    NOTICE:  LISTED BELOW ARE ITEMS FOR CONSIDERATION.

  ITEM LIN         DISCRIPTION/TITLE
 ----------       -------------------

    A22496     1 EA PER MORTOR SECTION
    T45593       SAME AS FOR LIN A22496, 1 PER EACH
    E63728     1 EA PER FIRE DIRECTION CHIEF
               1 EA PER SECTION LEADER
               1 EA PER SQUARD LEADERR
    P07900       SAME AS FOR LIN E63728, 1 PER EACH