MARINE CORPS WEAPONS & VEHICLES
ARTILLERY SYSTEMS AND MORTARS
M252 81MM MORTAR
BRIEFING: The M252 81mm medium mortar weighs 86 pounds. It
can be fired at the rapid rate of 30 rounds per minute for two minutes and continue firing at the sustained rate of 15 rounds per minute indefinitely. It has a maximum range of more than 5,900 yards.
One complete 81mm mortar system is operated by five Marines.
M236 120MM EXPEDITIONARY FIRE
SUPPORT SYSTEM (EFSS)
BRIEFING: EFSS is the third indirect-support weapon system of a
land-based fire-support triad that includes the HIMARS and the
M777 howitzer. EFSS is internally transportable in the MV- 22 and
CH- 53, and is the primary indirect fire-support system for the vertical assault element of the Ship-to-Objective Maneuver force.
EFSS is employed within the ground combat element of the
MAGTF, and is manned and supported by the Marine artillery regiment within a Marine division. EFSS affords the MAGTF commander increased flexibility in tailoring fire-support systems to the
scheme of maneuver. EFSS provides increased speed, tactical agility and vertical transportability to ranges that mirror those of a vertical force, with minimal tradeoffs in lethality.
The EFSS mortar section includes two Internally
Transportable Vehicle Prime Movers: one towing a 120mm mortar, with the other towing a trailer for transporting ammunition.
The battery is further equipped with five Internally
Transportable Vehicle Light Strike Vehicles, each capable of carrying one crew-served weapon system, i.e., either a .50-caliber
M2 machine gun, a Mk19 40mm grenade machine gun or a
7.62mm M240B machine gun. EFSS is capable of 110 nautical-mile lift in the MV- 22 and CH-53E aircraft. The Marine Corps’
acquisition objective is 72 EFSS systems. Full operational capability was reached in July 2013. A precision-guided round for
the mortar is in development for introduction in 2017.
CONTRACTOR: ...........General Dynamics Ordnance and Tactical
ASSAULT AMPHIBIOUS VEHICLE
BRIEFING: The AAV7, initially fielded in 1972, remains the primary general-support armor personnel carrier (APC) for Marine
infantry. The AAV Family Of Vehicles (FOV) consists of the
AAVP7A1 Reliability, Availability, Maintainability/Rebuild-to-Standard (RAM/RS) APC and two supporting mission-role variants: AAVC7A1 RAM/RS command variant and the AAVR7A1
RAM/RS recovery variant. The AAV7A1 RAM/RS FOV provides
ship-to-shore to objective mobility as well as direct fire support
with organic weapons. The AAV7A1 RAM/RS FOV will continue
to serve the Marine Corps until at least 2035.
The AAV7A1 RAM/RS FOV previously underwent a series of
capability enhancements to improve mobility and reliability, and
extend the platform’s service life. The AAV Survivability Upgrade
Program will improve survivability of the AAVP7, serving as a
capability bridge to the fielding of a new Amphibious Combat
Vehicle. This initiative will improve force protection and platform
survivability by integrating technically mature designs and subsys-
tems into the existing hull. These upgrades will include: belly and
sponson armor, blast-mitigating seats, spall lining, fuel tank pro-
tection, deck liners, and automotive and suspension upgrades to
maintain current land and water mobility characteristics with the
expected increased weight growth. The upgraded AAVP7s will
provide significant survivability improvements through increased
protection against current and future threats. The upgrades are
slated for approximately 392 AAVP7A1 RAM/RS.
The AAV Survivability Upgrade Program reached a Milestone
B decision in May 2014 and entered into the Engineering,
Manufacturing and Development Phase for a competitive design
effort with two vendors, BAE and SAIC. An option award to one
vendor is expected in February 2015 when the best value design
will be selected. The selected vendor will build 10 prototype
vehicles to be used in Developmental Testing (DT). The government is scheduled to begin DT in fiscal 2016 followed by an
Operational Assessment in fiscal 2017 and then by a Milestone
C/Low-Rate Initial Production (LRIP) decision. Initial operational capability (IOC) is anticipated in fiscal 2019 with full
operational capability in fiscal 2023.
CONTRACTOR: ...........BAE Systems (Survivability Upgrade Program
AMPHIBIOUS COMBAT VEHICLE (ACV)
BRIEFING: The ACV program is designed to provide an
advanced-generation, armored amphibious combat vehicle to
replace the AAV7. The ACV will be the primary means of tactical
mobility for the Marine rifle squad at sea and ashore. The ACV
will possess ground mobility and speed similar to the M1A1 tank
during sustained operations ashore and have the capability to
provide organic, direct fire support to dismounted infantry in the
attack. The plan to develop the ACV is divided into three phases:
ACV 1. 1, ACV 1. 2 and ACV 2.0.
ACV 1. 1 will support expeditionary mobility capability and
capacity with balanced levels of performance, protection, and payload. It will be capable of utilizing water obstacles, including the sea
within the littoral operating area, as maneuver space. This tactical
level of water mobility will enable shore-to-shore maneuver and
complement the operational (ship-to-shore) capability of the AAV.
The ACV 1. 1 will provide two infantry battalions of expeditionary protected mobility capacity. The Amphibious Assault
Company lifts an infantry battalion in conjunction with that
supported infantry battalions’ organic wheeled assets. The ACV
1. 1 will consist of non-developmental item procurement of the
Personnel Carrier (ACV-P).
ASSAULT AMPHIBIOUS VEHICLE