armor panels made of ceramic, S-2 fiberglass, and a Kevlar-like woven fabric in three separate layers, armor offers protection against machine gun and artillery fragments weighs 20 pounds per square foot (960Pa), 14.5 mm AP at 300 Meters, 155/152 mm fragments at 15 meters
Main armament
fully stabilized and digitally controlled Mk44 Bushmaster II Mod 0 30 mm cannon (EFVP) M240 machine gun, 7.62 mm coax (EFVPC)
Engine
MTU Friedrichshafen MT 883 Ka-524 90-degree V-12 diesel engine 2,702 hp (2,016 kW) (water), 850 hp (635 kW) (land)
Power/weight
34.48hp/t (25.71kW/t)
Payloadcapacity
9,150 pounds (4.15t)
Transmission
Allison X4560 six speed transmission; water propulsion through two 23-inch (0.58m)-diameter water jets
Suspension
14 retractable independent hydraulic suspension units with two nitrogen gas charges
Fuelcapacity
325 US gallons (1,230L)
Operational range
land: 523km (325 miles) water: 120km (74 miles)
Maximum speed
road: 72.41km/h (45 mph) water: 46km/h (28.6 mph)
The Expeditionary Fighting Vehicle (EFV) (formerly known as the Advanced Amphibious Assault Vehicle (AAAV)) was an amphibious assault vehicle developed by General Dynamics during the 1990s and 2000s for use by the U.S. Marine Corps. It would have been launched at sea, from an amphibious assault ship 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 EFV was designed to replace the aging AAV-7A1 Assault Amphibious Vehicle (AAV),[3] which entered service in 1972,[4][unreliable source?] 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. The vehicle was to be deployed in 2015;[5] however, on 6 January 2011, Secretary of DefenseRobert Gates recommended the EFV program be canceled.[6][7] The program, which was projected to cost $15billion, had already cost $3billion.[8][9]
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.[10]
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 Landing Craft Air Cushion (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. 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.[11]
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.[11] 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 to General Dynamics in July 2001 for the systems development and demonstration phase of the program, expected to be completed by October 2003. The AAAV was renamed "EFV" in September 2003. The Government Accountability Office later stated that the development phase of three years was insufficient, causing delays and prototype failures, particularly in reliability.[11] 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 US$143.5 million in February 2007.[11] That June, a reset of the development phase delayed completion by an additional four years.[11] Instead of initiating production as planned, the corps asked for seven new prototypes, to address the current deficiencies, which had caused an average of one failure for every four and a half hours of operation.[12]
On 7 April 2009, Defense Secretary Gates said that the EFV program would "continue as-is", pending an amphibious review in the 2010 Quadrennial Defense Review.[13] The vehicle was called "exquisite", which Gates usually reserved for programs he intended to cancel.[14] He later questioned the EFV as the proper ship-to-shore platform on 3 May 2010,[15] the day before the initial prototype was rolled out at a ceremony at Marine Corps Base Quantico.[16]
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 $22.3million in 2007.[11][16] The EFV might be a baseline vehicle for the US Army'sBCT Ground Combat Vehicle Program, however it is more likely that the army will start a new program.[17]
Low rate initial production (LRIP) was projected to begin in January 2012.[18] Projected total program development cost of the type until first quarter of 2010 was estimated at 15.9billion dollars.[19]
Controversy
Robert O. Work, while Undersecretary of the Navy 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.[20][21] New families of guided anti-ship weapons have extended target ranges of well past 75 miles (121km) making the EFV's capabilities less of a game-changer than originally hoped.[22]
In a joint report, the U.S. Public Interest Research Group and the National Taxpayers Union 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.[23] The co-chairs of the National Commission on Fiscal Responsibility and Reform have also supported the cancellation of the EFV.[24] 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.[7] In a statement released after Gates' press conference, Commandant of the Marine Corps General Amos said that he supported the cancellation of the EFV:
Today the Secretary of Defense announced the termination of the Expeditionary Fighting Vehicle (EFV) program. I support his decision. After a thorough review of the program within the context of a broader Marine Corps force structure review, I personally recommended to both the Secretary of Defense and the Secretary of the Navy that the EFV be cancelled and that the Marine Corps pursue a more affordable amphibious tracked fighting vehicle. Despite the critical amphibious and war-fighting capability the EFV represents, the program is not affordable given likely Marine Corps procurement budgets. The procurement and operations/maintenance costs of this vehicle are onerous. After examining multiple options to preserve the EFV, I concluded that none of the options meets what we consider reasonable affordability criteria. As a result, I decided to pursue a more affordable vehicle.[6]
Loren B. Thompson, of the Lexington Institute, said that Amos had been ordered to give this statement, which did not reflect his actual feelings on the issue.[25]
According to Lieutenant General George J. Flynn of the Marine Corps Combat Development Command, the USMC was to use funding from the cancelled EFV for other tactical ground vehicles over the next five years.[27] The EFV program was cut from a 2012 proposed budget by the White House.[28]
General Dynamics offered a cut down version of the EFV without the hydroplaning or weapons.[29]Ray Mabus has said that new defensive systems will allow navy ships to close to within 12 miles (19km) off hostile shores so a 25 knots (46km/h) amphibious tracked vehicle is no longer needed.[30]
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.[31] In the 2012 appropriations bill, Congress ordered that the EFV be one of the alternatives considered in the study.[32]
Design
Diagram of EFVP1 variant
The EFV, designed by General Dynamics Land Systems, was an amphibious armored tracked vehicle with an aluminum hull. The engine is a custom MTU Friedrichshafen 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 structure.[33]
The hull had a hydraulically actuated bow flap to aid planing with a maximum waterborne speed of 46 kilometres per hour (29mph; 25kn). Shrouded Honeywellwaterjetpropulsors are integrated into each side of the hull, which create over 2,800 horsepower (2,100kW) of thrust. It was also outfitted with hydraulically actuated chines to cover the tracks while in seafaring mode.
The vehicle uses an Ethernet network connected by the Tactical Switch Router, based on the COTSDuraMARMobile IP router for its internal and external communications.[34]
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 30mm cannon, which fired up to 250 rounds per minute with single, burst, and fully automatic capabilities up to 2,000 metres (2,200yd) in all weather conditions. A general purpose M240 7.62mm machine gun with 600 rounds of ready-to-use ammunition was to be mounted coaxially with the main gun.
The EFV was fitted with composite armor, 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.[35]
In June 2007 members of the House Armed Services Subcommittee on Seapower and Expeditionary Forces sent a letter to the Commandant of the Marine Corps urging that the EFV be redesigned to give troops better protection against roadside bombs.[36] The Marines suggested that underbelly armor appliqué could be applied after the EFVs come ashore and before they encounter IEDs.[11] 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.[37]
However, tests in January and February 2010 at Aberdeen Test Center demonstrated that the EFV offers blast protection equal to a category-2 Mine Resistant Ambush Protected vehicle, including two simulated improvised explosive devices under its belly and tracks.[38] 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, was necessary for the EFV to plane across the surface of the water and reach its high speed, while dealing with sea states of Category 4.[38][39]
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.[40]
Mobility
EFVP1 driving compartment.
Given the increasing ranges of shore launched anti-ship missiles, the EFV's 25 nautical miles (29mi; 46km) range for amphibious landing may no longer provide the anticipated protection predicted for an over the horizon launch.[11] The U.S. Navy began reconsidering the over the horizon approach, and is considering 10–18 miles (16–29km) appropriate for amphibious launches. This shift in doctrine has made the EFV's high water speeds unnecessary.[8] The EFV's need for high water speed has resulted in an engine that is 1,200hp (890kW) more powerful than the M1 Abrams, even though the EFV weighs far less.[41]
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 from seabases by initiating amphibious operations from 20 to 25 miles (32 to 40km) 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 with its own fully stabilized MK46 weapon station with the 30mm cannon and 7.62mm machine-gun.
Command variant
EFVC1
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 for maneuver unit commanders at the battalion 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.
The United States Armed Forces are the military forces of the United States. The armed forces consist of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. All six armed services are among the eight uniformed services of the United States.
A Marine expeditionary unit is the smallest air-ground task force (MAGTF) in the United States Fleet Marine Force. Each MEU is an expeditionary rapid reaction force ready to answer any crisis, whether it be disaster aid or a combat mission. Marine amphibious unit (MAU) was the name used until the late 1980s.
James Terry Conway is a retired United States Marine Corps four-star general who served as the 34th Commandant of the Marine Corps. Among his previous postings were Director of Operations (J-3) on the Joint Chiefs of Staff, Commanding General of 1st Marine Division and I Marine Expeditionary Force, taking part in the 2003 invasion of Iraq and the First Battle of Fallujah.
The Assault Amphibious Vehicle (AAV)—official designation AAVP-7A1 —is a fully tracked amphibious landing vehicle manufactured by U.S. Combat Systems.
The Amphibious Vehicle, Tracked (LVT) is an amphibious warfare vehicle and amphibious landing craft, introduced by the United States Navy and United States Marine Corps. The United States Army, Canadian Army and British Army used several LVT models during World War II, and referred to those vehicles as "Landing Vehicle, Tracked."
The LAV-25 is a member of the LAV II family. It is an eight-wheeled amphibious armored reconnaissance vehicle built by General Dynamics Land Systems and used by the United States Marine Corps and the United States Army.
In the United States Marine Corps, a Marine Air–Ground Task Force is the principal organization for all missions across the range of military operations. MAGTFs are a balanced air–ground, combined arms task organization of Marine Corps forces under a single commander that is structured to accomplish a specific mission. The MAGTF was formalized by the publishing of Marine Corps Order 3120.3 in December 1963, "The Marine Corps in the National Defense, MCDP 1-0". It stated:
A Marine air–ground task force with separate air ground headquarters is normally formed for combat operations and training exercises in which substantial combat forces of both Marine aviation and Marine ground units are included in the task organization of participating Marine forces.
3rd Assault Amphibian Battalion is one of two active duty assault amphibian battalions in the United States Marine Corps. The battalion's primary weapon system is the Amphibious Assault Vehicle or AAV. The AAV is a 27.5-ton armored vehicle that carries up to 21 combat-loaded Marines and is armed with the UGWS, which mounts a .50 cal (12.7 mm) M2HB machine gun and a Mk-19 40 mm grenade launcher. The battalion is also equipped with the Amphibious Combat Vehicle or ACV, a rather new variant to the USMC’s amphibious armament which will replace the AAV in years to come. The AAV and ACV are the only armored vehicles in the U.S. inventory that are fully capable of operations both on land and in the ocean. The battalion is part of the 1st Marine Division and the I Marine Expeditionary Force. The unit is based in Camp Pendleton, California.
The Philippine Marine Corps (PMC) is the marine corps of the Philippines, a naval infantry force under the command of the Philippine Navy. The PMC conducts amphibious, expeditionary, and special operations missions.
In the United States Marine Corps, the ground combat element (GCE) is the land force of a Marine Air-Ground Task Force (MAGTF). It provides power projection and force for the MAGTF.
USS America (LHA-6), is an amphibious assault ship of the United States Navy and the lead ship of the America-class amphibious assault ship. The fourth U.S. warship to be named for the United States of America, she was delivered in spring of 2014, replacing Peleliu of the Tarawa class. Her mission is to act as the flagship of an expeditionary strike group or amphibious ready group, carrying part of a Marine expeditionary unit into battle and putting them ashore with helicopters and V-22 Osprey tilt-rotor aircraft, supported by F-35B Lightning II aircraft and helicopter gunships.
List of abbreviations, acronyms and initials related to military subjects such as modern armour, artillery, infantry, and weapons, along with their definitions.
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 combined arms, implementing its own infantry, artillery, aerial, and special operations forces. The U.S. Marine Corps is one of the eight uniformed services of the United States.
The Type 05 amphibious armored vehicle is a family of amphibious tracked armored fighting vehicles developed by Norinco for the People's Liberation Army Navy Marine Corps, consisting of two main combat variants — the ZBD-05 infantry fighting vehicle and the ZTD-05 assault vehicle, as well as several support variants based on the ZBD-05. The Type 05s could be launched at sea from an amphibious assault ship over the horizon, and features a hydroplane, a design concept that has been compared to the cancelled United States Expeditionary Fighting Vehicle (EFV) program.
The Spearhead-class expeditionary fast transport (EPF) is a United States Navy–led shipbuilding program to provide a high-speed, shallow draft vessel intended for rapid intra-theater transport of medium-sized cargo payloads. The EPFs can reach speeds of 35–45 knots, and allow the rapid transit and deployment of conventional or special forces, equipment and supplies.
The Marine Personnel Carrier (MPC) is a wheeled armored personnel carrier under development for acquisition by the United States Marine Corps. The program was canceled in 2013 but resurrected in 2014 as part of 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 (AAV). The program replaces the Expeditionary Fighting Vehicle (EFV) program canceled in 2011. Originally a plan to develop a high-water-speed vehicle, the program has expanded into a multi-phased approach to procure and develop several types of amphibious-capable vehicles to address near and long-term requirements.
The Iveco SuperAV is an eight-wheel drive tactical vehicle developed by the Italian commercial vehicle company Iveco. A version made in collaboration with BAE Systems was selected by the United States Marine Corps for the Amphibious Combat Vehicle program.
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