The Expeditionary Fighting Vehicle (EFV) (formerly known as the Advanced Amphibious Assault Vehicle (AAAV)) was an

amphibious assault vehicle The Assault Amphibious Vehicle (AAV)—official designation AAVP-7A1 (formerly known as Landing Vehicle, Tracked, Personnel-7 abbr. LVTP-7)—is a fully tracked amphibious landing vehicle manufactured by U.S. Combat Systems (previously by Uni ...

developed by General Dynamics during the 1990s and 2000s for use by the

U.S. Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through comb ...

. It would have been launched at sea, from an

amphibious assault ship An amphibious assault ship is a type of amphibious warfare ship employed to land and support ground forces on enemy territory by an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers (and, ...

beyond the horizon, able to transport a full Marine rifle squad to shore. It would maneuver cross country with an agility and mobility equal to or greater than the

M1 Abrams The M1 Abrams is a List of main battle tanks by generation, third-generation American main battle tank designed by Chrysler Defense (now General Dynamics Land Systems) and named for General Creighton Abrams. Conceived for modern Armoured warfa ...

. The EFV was designed to replace the aging AAV-7A1 Assault Amphibious Vehicle (AAV), which entered service in 1972, and was the Marine Corps' number one priority ground weapon system acquisition. It was to have had three times the speed in water and about twice the armor of the AAV, as well as superior

firepower Firepower is the military capability to direct force at an enemy. (It is not to be confused with the concept of rate of fire, which describes the cycling of the firing mechanism in a weapon system.) Firepower involves the whole range of potent ...

. The vehicle was to be deployed in 2015; however, on 6 January 2011, Secretary of Defense

Robert Gates Robert Michael Gates (born September 25, 1943) is an American intelligence analyst and university president who served as the 22nd United States secretary of defense from 2006 to 2011. He was originally appointed by president George W. Bush ...

recommended the EFV program be canceled. The program, which was projected to cost $15 billion, had already cost $3 billion. The Marines asked for the EFV to be canceled in favor of the Assault Amphibian Vehicle Service Life Extension Program and the Marine Personnel Carrier, which itself became phase one of the

Amphibious Combat Vehicle The Amphibious Combat Vehicle (ACV) is a program initiated by Marine Corps Systems Command to procure an amphibious assault vehicle for the United States Marine Corps to supplement and ultimately replace the aging Assault Amphibious Vehicle (A ...

History

In the 1980s, the US Marine Corps developed an "over the horizon" strategy for ocean-based assaults. The intention was to protect naval ships from enemy mines and shore defenses. It included the

MV-22 Osprey The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a convention ...

, the

Landing Craft Air Cushion The Landing Craft Air Cushion (LCAC) is a class of air-cushioned landing craft (hovercraft) used by the United States Navy and the Japan Maritime Self-Defense Force (JMSDF). They transport weapons systems, equipment, cargo and personnel from sh ...

(LCAC), and the EFV. Development for the AAAV began in August 1974 with Landing Vehicle Assault (LVA) prototypes that continued in the early 1980s at the command at

Marine Corps Base Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by Oc ...

. The AAAV's predecessor, the LVTP-7, had its life expectancy extended in 1983–84 by use of a service life extension program, which modified and upgraded many of the key systems, creating the LVTP7A1 and re-designated it the AAVP7A1. At the time these vehicles were released, the USMC had anticipated and communicated delivery of the AAAV by 1993. As a result of delays, the AAVP7A1 received another service life extension-type upgrade in the mid 1990s while the USMC still awaited final development and delivery of the AAAV, 14 years behind original projected time frames. In 1988, defense officials authorized the concept exploration and definition phase. In 1995, the program entered into the definition and risk reduction phase, where it won two Department of Defense awards for successful cost and technology management. In June 1996, a contract was awarded to General Dynamics Land Systems to begin full-scale engineering development of their design. Based on the early success of the program, the Marine Corps awarded a

cost-plus contract A cost-plus contract, also termed a cost plus contract, is a contract such that a contractor is paid for all of its allowed expenses, ''plus'' additional payment to allow for a profit.Government Accountability Office would later state that the development phase of three years was insufficient, causing delays and prototype failures, particularly in reliability. After the 2006 Operational Assessment was plagued by reliability issues and maintenance burdens, the Corps began a redesign of the EFV, requiring a new contract for an additional in February 2007. That June, a reset of the development phase delayed completion by an additional four years. Instead of initiating production as planned, the corps asked for seven new prototypes, to address the current deficiencies, which have caused an average of one failure for every four and a half hours of operation. On 7 April 2009, Defense Secretary Robert Gates said that the EFV program will "continue as-is", pending an amphibious review in the 2010

Quadrennial Defense Review The Quadrennial Defense Review (QDR) was a study by the United States Department of Defense that analyzes strategic objectives and potential military threats. The ''Quadrennial Defense Review Report'' was the main public document describing the Uni ...

. The vehicle was called "exquisite", which Gates usually reserved for programs he intended to cancel. He later questioned the EFV as the proper ship-to-shore platform on 3 May 2010, the day before the initial prototype was rolled out at a ceremony at

Marine Corps Base Quantico Marine Corps Base Quantico (commonly abbreviated MCB Quantico) is a United States Marine Corps installation located near Triangle, Virginia, covering nearly of southern Prince William County, Virginia, northern Stafford County, and southeaste ...

. The USMC had reduced the number to be purchased from 1,013 to 573 AAAVs by 2015 due to escalation in unit cost estimated at $22.3 million in 2007. The EFV might be a baseline vehicle for the US Army's

BCT Ground Combat Vehicle Program The Ground Combat Vehicle (GCV) was the United States Army's replacement program for armored fighting vehicles in Armored and Stryker brigade combat teams. The GCV was organized under the ''Follow On Incremental Capabilities Package'' of th ...

, however it is more likely that the army will start a new program.

Low rate initial production Low rate initial production (LRIP) is a term commonly used in military weapon projects/programs to designate the phase of initial, small-quantity production. The prospective first buyer and operator (i.e., a country's defense authorities and the r ...

(LRIP) was projected to begin in January 2012. Projected total program development cost of the type until first quarter of 2010 was estimated at 15.9 billion dollars.

Controversy

Robert O. Work Robert Orton Work (born January 17, 1953) is an American national security professional who served as the 32nd United States Deputy Secretary of Defense for both the Obama and Trump administrations from 2014 to 2017. Prior to that, Work was the U ...

, while

Undersecretary of the Navy The Under Secretary of the Navy is the second-highest ranking civilian official in the United States Department of the Navy. The Under Secretary, called the "Under" in Pentagon slang, reports to the Secretary of the Navy (SECNAV). Before the cre ...

sketched out a future for amphibious warfare in which either the Marines will land unopposed or it will take a major effort using all the long range weapons of the United States armed forces to clear out ship-killing missiles, so that amphibious ships can safely approach the hostile beach and neither scenario sees much use for the EFV. New families of guided anti-ship weapons have extended target ranges of well past making the EFV's capabilities less of a game-changer than for which originally hoped. In a joint report, the U.S.

Public Interest Research Group Public Interest Research Groups (PIRGs) are a federation of U.S. and Canadian non-profit organizations that employ grassroots organizing and direct advocacy on issues such as consumer protection, public health and transportation. The PIRGs are c ...

and the

National Taxpayers Union The National Taxpayers Union (NTU) is a fiscally conservative taxpayer advocacy organization and taxpayers union in the United States, founded in 1977 by James Dale Davidson. NTU says that it is the oldest taxpayer advocacy organization in th ...

called the EFV program wasteful spending and asked for its cancellation along with the F-35 Joint Strike Fighter and the V-22 Osprey aircraft. The co-chairs of the

National Commission on Fiscal Responsibility and Reform The National Commission on Fiscal Responsibility and Reform (often called Simpson–Bowles or Bowles–Simpson from the names of co-chairs Alan Simpson and Erskine Bowles; or NCFRR) was a bipartisan Presidential Commission on deficit reduction, ...

have also supported the cancellation of the EFV. During a Pentagon briefing, on 6 January 2011, revealing budget efficiencies and reinvestment possibilities, Secretary of Defense Gates announced his intention to cancel the EFV program. In a statement released after Gates' press conference,

Commandant of the Marine Corps The commandant of the Marine Corps (CMC) is normally the highest-ranking officer in the United States Marine Corps and is a member of the Joint Chiefs of Staff. Joint Chiefs of Staff: composition; functions. The CMC reports directly to the sec ...

General Amos said that he supported the cancellation of the EFV:

Loren B. Thompson Loren is a given name, nickname and surname which may refer to: Given name Men * Loren Acton (born 1936), American physicist and astronaut * Loren C. Ball (born 1948), amateur astronomer who has discovered more than 100 asteroids * Loren M. Ber ...

, of the Lexington Institute, said that Amos had been ordered to give this statement, which did not reflect his actual feelings on the issue. In an interview on 5 January 2011 with

Bloomberg Businessweek ''Bloomberg Businessweek'', previously known as ''BusinessWeek'', is an American weekly business magazine published fifty times a year. Since 2009, the magazine is owned by New York City-based Bloomberg L.P. The magazine debuted in New York City ...

, Duncan D. Hunter, a member of the

House Armed Services Committee The U.S. House Committee on Armed Services, commonly known as the House Armed Services Committee or HASC, is a standing committee of the United States House of Representatives. It is responsible for funding and oversight of the Department of D ...

, anticipated the cancellation announcement by Gates. However, Hunter has predicted that his committee will reject the cancellation. According to Lieutenant General George J. Flynn of the Marine Corps Combat Development Command, the USMC will use funding from the cancelled EFV for other tactical ground vehicles over the next five years. The EFV program was cut from a 2012 proposed budget by the White House. General Dynamics is offering a cut down version of the EFV without the hydroplaning or weapons.

Ray Mabus Raymond Edwin Mabus Jr. (; born October 11, 1948) is an American politician and lawyer. A member of the Democratic Party, he served as the 75th United States Secretary of the Navy from 2009 to 2017. Mabus previously served as the State Auditor ...

has said that new defensive systems will allow navy ships to close to within off hostile shores so a amphibious tracked vehicle is no longer needed. Deputy Commandant George Flynn has said that the analysis of alternatives to replace the EFV will be accelerated to complete in six to nine months. In the 2012 appropriations bill, Congress ordered that the EFV be one of the alternatives considered in the study.

Design

The EFV, designed by

General Dynamics General Dynamics Corporation (GD) is an American publicly traded, aerospace and defense corporation headquartered in Reston, Virginia. As of 2020, it was the fifth-largest defense contractor in the world by arms sales, and 5th largest in the Un ...

Land Systems, was an amphibious armored tracked vehicle with an aluminum hull. The engine is a custom

MTU Friedrichshafen MTU Friedrichshafen GmbH is a German manufacturer of commercial internal combustion engines founded by Wilhelm Maybach and his son Karl Maybach in 1909. Wilhelm Maybach was the technical director of Daimler-Motoren-Gesellschaft (DMG), a prede ...

diesel (MT883) with two modes of operation; a high power mode for planing over the sea, and a low power mode for land travel. It has a crew of three and can transport 17 marines and their equipment. The EFV would have been the first heavy tactical vehicle with a

space frame In architecture and structural engineering, a space frame or space structure ( 3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas wit ...

structure. The hull had a hydraulically actuated bow flap to aid planing with a maximum waterborne speed of . Shrouded

Honeywell Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building technologies, performance ma ...

waterjet

propulsor {{short description, Mechanical device to propel a vessel A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The ...

s are integrated into each side of the hull, which create over of thrust. It was also outfitted with hydraulically actuated

chine A chine () is a steep-sided coastal gorge where a river flows to the sea through, typically, soft eroding cliffs of sandstone or clays. The word is still in use in central Southern England—notably in East Devon, Dorset, Hampshire and the Isl ...

s to cover the tracks while in seafaring mode. The vehicle uses an

Ethernet Ethernet () is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in ...

network connected by the Tactical Switch Router, based on the COTS DuraMAR Mobile IP router for its internal and external communications.

Armament

The electrically powered two-man MK46 turret on the personnel variant accommodated the commander on the right and gunner on the left, a fire control system, and the main and coaxial weapons. The standard version was to have had a

Mk44 Bushmaster II The Mk44 Bushmaster II is a 30 mm chain gun manufactured by Northrop Grumman. It is a derivative of the 25 mm M242 Bushmaster, and uses 70% of the same parts as the M242 while increasing the firepower by as much as 50% with the 20% increase i ...

30 mm cannon, which fired up to 250 rounds per minute with single, burst, and

fully automatic An automatic firearm is an auto-loading firearm that continuously chambers and fires rounds when the trigger mechanism is actuated. The action of an automatic firearm is capable of harvesting the excess energy released from a previous disch ...

capabilities up to in all weather conditions. A general purpose M240 7.62 mm machine gun with 600 rounds of ready-to-use ammunition was to be mounted coaxially with the main gun.

Countermeasures

The EFV was fitted with

composite armor Composite armour is a type of vehicle armour consisting of layers of different material such as metals, plastics, ceramics or air. Most composite armours are lighter than their all-metal equivalent, but instead occupy a larger volume for the sam ...

, mine-blast protection, and a nuclear, biological and chemical defense system. Although aluminum hulls have been used for decades in military ground vehicles and watercraft, they have caused some concern due to protection issues. In June 2007 members of the House Armed Services Subcommittee on Seapower and Expeditionary Forces sent a letter to the

urging that the EFV be redesigned to give troops better protection against roadside bombs. The Marines suggested that underbelly armor appliqué could be applied after the EFVs come ashore and before they encounter IEDs. The limited protection the EFV offers is an improvement on that offered by the AAV so the replacement is an advantage, given the current doctrine of using landing craft for land patrols. However, tests in January and February 2010 at

Aberdeen Test Center Aberdeen (; sco, Aiberdeen ; gd, Obar Dheathain ; la, Aberdonia) is a city in North East Scotland, and is the third most populous city in the country. Aberdeen is one of Scotland's 32 local government council areas (as Aberdeen City), ...

demonstrated that the EFV offers blast protection equal to a category-2 Mine Resistant Ambush Protected vehicle, including two simulated

improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mecha ...

s under its belly and tracks. Tests also show that it has superior protection from direct and indirect fire. The flat hull, which has endured persistent criticism for not being the more blast-resistant

V-shape Many shapes have metaphorical names, i.e., their names are metaphors: these shapes are named after a most common object that has it. For example, "U-shape" is a shape that resembles the letter U, a bell-shaped curve has the shape of the vertica ...

, was necessary for the EFV to plane across the surface of the water and reach its high speed, while dealing with

sea state In oceanography, sea state is the general condition of the free surface on a large body of water—with respect to wind waves and swell—at a certain location and moment. A sea state is characterized by statistics, including the wave height ...

s of Category 4. On 13 October 2010 the navy awarded M Cubed Technologies a contract to develop new armor for the EFV to offer better protection and lighter weight.

Mobility

Given the increasing ranges of shore launched

anti-ship missile An anti-ship missile (AShM) is a guided missile that is designed for use against ships and large boats. Most anti-ship missiles are of the sea skimming variety, and many use a combination of inertial guidance and active radar homing. A good ...

s, the EFV's range for amphibious landing may no longer provide the anticipated protection predicted for an over the horizon launch. The U.S. Navy began reconsidering the over the horizon approach, and is considering appropriate for amphibious launches. This shift in doctrine has made the EFV's high water speeds unnecessary. The EFV's need for high water speed has resulted in an engine that is more powerful than the

, even though the EFV weighs far less.

Variants

Personnel variant

The EFVP1 with a three-man crew would have conducted the signature mission of the United States Marine Corps,

expeditionary maneuver warfare Expeditionary maneuver warfare (EMW) is the current concept that guides how the United States Marine Corps organizes, deploys and employs its forces. Utilizing maneuver warfare and the Marine Corps' expeditionary heritage, EMW emphasizes strategi ...

from seabases by initiating amphibious operations from over-the-horizon and transporting 17 combat-equipped Marines to inland objectives. The fully armored, tracked combat vehicle would have provided firepower to disembarked or

mechanized infantry Mechanized infantry are infantry units equipped with armored personnel carriers (APCs) or infantry fighting vehicles (IFVs) for transport and combat (see also mechanized force). As defined by the United States Army The United States A ...

with its own fully stabilized MK46 weapon station with the 30 mm cannon and 7.62mm machine-gun.

Command variant

The EFVC1 was to have provided the same survival and mobility capabilities found in the EFVP1. The EFVC1 would have been employed as a tactical

command post Command and control (abbr. C2) is a "set of organizational and technical attributes and processes ... hatemploys human, physical, and information resources to solve problems and accomplish missions" to achieve the goals of an organization or en ...

for maneuver unit commanders at the

battalion A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions are ...

and regimental level. The EFVC1 would have provided the supported commander and selected staff with the ability to communicate, via on-board communications, with senior, adjacent, and subordinate maneuver units. The EFVC1 was to be armed with only a 7.62mm machine gun.

References

External links

Official USMC website for the EFV program

MTU diesel engines for military vehicles

on GlobalSecurity.org
on Armour.ws
{{General Dynamics Abandoned military projects of the United States Amphibious infantry fighting vehicles Armored personnel carriers of the United States United States Marine Corps projects Tracked amphibious vehicles General Dynamics land vehicles Post–Cold War armored fighting vehicles of the United States