Bell Boeing V-22 Osprey



























































V-22 Osprey

MV-22 mcas Miramar 2014.JPG
An MV-22 used during a MAGTF demonstration during the Miramar Air Show 2014
Role

V/STOL military transport aircraft

National origin
United States
Manufacturer

Bell Helicopter
Boeing Defense, Space & Security
First flight
19 March 1989
Introduction
13 June 2007[1]
Status
In service
Primary users

United States Marine Corps
United States Air Force
United States Navy
Produced
1988–present

Number built
200+ as of 2014[2]

Program cost
US$35.6 billion after planned procurement of 408 aircraft[3]

Unit cost


MV-22: US$72.1 million (flyaway cost for FY2015)[4]


Developed from

Bell XV-15

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 conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft.


The failure of Operation Eagle Claw during the Iran hostage crisis in 1980 underscored the requirement for a new long-range, high-speed, vertical-takeoff aircraft for the United States Department of Defense. In response, the Joint-service Vertical take-off/landing Experimental (JVX) aircraft program started in 1981. A partnership between Bell Helicopter and Boeing Helicopters was awarded a development contract in 1983 for the V-22 tiltrotor aircraft. The Bell Boeing team jointly produce the aircraft.[5] The V-22 first flew in 1989, and began flight testing and design alterations; the complexity and difficulties of being the first tiltrotor for military service led to many years of development.


The United States Marine Corps began crew training for the Osprey in 2000, and fielded it in 2007; it supplemented and then replaced their Boeing Vertol CH-46 Sea Knights. The U.S. Air Force fielded their version of the tiltrotor in 2009. Since entering service with the U.S. Marine Corps and Air Force, the Osprey has been deployed in transportation and medevac operations over Iraq, Afghanistan, Libya, and Kuwait.




Contents






  • 1 Development


    • 1.1 Origins


    • 1.2 Flight testing and design changes


    • 1.3 Controversy


    • 1.4 Production




  • 2 Design


    • 2.1 Overview


    • 2.2 Propulsion


    • 2.3 Avionics


    • 2.4 Armament


    • 2.5 Refueling capability




  • 3 Operational history


    • 3.1 U.S. Marine Corps


    • 3.2 U.S. Air Force


    • 3.3 U.S. Navy


    • 3.4 Japan Self-Defense Forces


    • 3.5 Potential operators


      • 3.5.1 India


      • 3.5.2 Israel


      • 3.5.3 South Korea


      • 3.5.4 United Arab Emirates






  • 4 Variants


  • 5 Operators


  • 6 Accidents


  • 7 Aircraft on display


  • 8 Specifications (MV-22B)


  • 9 Notable appearances in media


  • 10 See also


  • 11 References


    • 11.1 Bibliography




  • 12 External links




Development


Origins



Early concept illustrations of V-22 from late 1980s timeframe. The top view is an isometric view. Front, side and top views are shown below with a view of the wing folded.

Early concept illustrations of V-22


The failure of the Iran hostage rescue mission in 1980 demonstrated to the United States military a need[6][7] for "a new type of aircraft, that could not only take off and land vertically but also could carry combat troops, and do so at speed."[8] The U.S. Department of Defense began the Joint-service Vertical take-off/landing Experimental (JVX) aircraft program in 1981, under U.S. Army leadership.[9]


The defining mission of the Marine Corps has been to perform an amphibious landing, and they were particularly interested in the JVX program. They realized that a concentrated strike force was vulnerable to a single nuclear weapon, airborne solutions with good speed and range allowed for significant dispersal;[10] and their CH-46s were wearing out;[11] without replacement, the threat of a merger between the Marine Corps and the Army lingered,[12][13] similar to President Truman's proposal following World War II.[14] The OSD and Navy administration were against the tiltrotor project, but congressional pressure eventually proved persuasive.[15]


The U.S. Navy and Marine Corps were given the lead in 1983.[9][16][17] The JVX combined requirements from the U.S. Marine Corps, Air Force, Army and Navy.[18][19] A request for proposals (RFP) was issued in December 1982 for preliminary design work. Interest was expressed by Aérospatiale, Bell Helicopter, Boeing Vertol, Grumman, Lockheed, and Westland. Contractors were encouraged to form teams. Bell partnered with Boeing Vertol to submit a proposal for an enlarged version of the Bell XV-15 prototype on 17 February 1983. Being the only proposal received, a preliminary design contract was awarded on 26 April 1983.[20][21]


The JVX aircraft was designated V-22 Osprey on 15 January 1985; by that March, the first six prototypes were being produced, and Boeing Vertol was expanded to deal with the project workload.[22][23] Work has been split evenly between Bell and Boeing. Bell Helicopter manufactures and integrates the wing, nacelles, rotors, drive system, tail surfaces, and aft ramp, as well as integrates the Rolls-Royce engines and performs final assembly. Boeing Helicopters manufactures and integrates the fuselage, cockpit, avionics, and flight controls.[5][24] The USMC variant of the Osprey received the MV-22 designation and the U.S. Air Force variant received CV-22; this was reversed from normal procedure to prevent Marine Corps Ospreys from having a conflicting designation with aircraft carriers (CV).[25] Full-scale development of the V-22 tilt-rotor aircraft began in 1986.[26] On 3 May 1986, the Bell Boeing partnership was awarded a $1.714 billion contract for V-22 aircraft by the U.S. Navy. At this point, all four U.S. military services had acquisition plans for V-22 versions.[27]


The first V-22 was rolled out with significant media attention in May 1988.[28][29] The project suffered several blows. That year, the U.S. Army left the program, citing a need to focus its budget on more immediate aviation programs.[9] In 1989, the project survived two separate votes in the Senate that could have resulted in cancellation.[30][31] Despite the Senate's decision, the Department of Defense instructed the U.S. Navy not to spend more money on the V-22.[32] When the V-22's projected development budget greatly increased in 1988, Defense Secretary Dick Cheney tried to remove funding from 1989 to 1992 in an effort to cancel it. He was eventually overruled by Congress,[16][33] which provided unrequested funding for the program.[34] Multiple studies of alternatives found the V-22 provided more capability and combat effectiveness with similar operating costs.[35] The Clinton Administration was supportive of the V-22 and helped it attain funding.[16]


Flight testing and design changes


The first of six MV-22 prototypes first flew on 19 March 1989 in the helicopter mode,[36] and on 14 September 1989 in fixed-wing mode.[37] The third and fourth prototypes successfully completed the Osprey's first sea trials on USS Wasp in December 1990.[38] The fourth and fifth prototypes crashed in 1991–92.[39] From October 1992 – April 1993, Bell and Boeing redesigned the V-22 to reduce empty weight, simplify manufacture, and reduce production costs. This redesigned version became the V-22B model.[40] V-22 flights resumed in June 1993 after safety improvements were incorporated in the prototypes.[41] Bell Boeing was awarded a contract for the engineering manufacturing development (EMD) phase in June 1994.[40] The prototypes also received changes to better match the B-model configuration. Flight testing at the stage focused on expanding the flight envelope, measuring flight loads, and supporting the EMD redesign. This and further flight testing with the early V-22s continued into 1997.[42]



Four U.S. Marine paratroopers jump from the rear loading ramp of an MV-22 Osprey

U.S. Marines jump from an Osprey.


Flight testing of four full-scale development V-22s began in early 1997 when the first pre-production V-22 was delivered to the Naval Air Warfare Test Center, Naval Air Station Patuxent River, Maryland. The first EMD flight took place on 5 February 1997. Testing fell behind schedule.[43] The first of four low rate initial production aircraft, ordered on 28 April 1997, was delivered on 27 May 1999. Osprey number 10 completed the program's second sea trials, this time from USS Saipan in January 1999.[26] During external load testing in April 1999, Boeing used a V-22 to lift and transport the light-weight M777 howitzer.[44][45]


In 2000, there were two further fatal crashes, killing a total of 23 marines, and the V-22 was again grounded while the cause of these crashes was investigated and various parts were redesigned.[33] In June 2005, the V-22 successfully completed its final operational evaluation; this had included long-range deployments, high altitude, desert and shipboard operations. The problems identified in various accidents had reportedly been resolved.[46]


U.S. Naval Air Systems Command worked on software upgrades to increase the maximum speed from 250 knots (460 km/h; 290 mph) to 270 knots (500 km/h; 310 mph), increase helicopter mode altitude limit from 10,000 feet (3,000 m) to 12,000 feet (3,700 m) or 14,000 feet (4,300 m), and increase lift performance.[47] Implementation of these upgrades began in September 2011[48] and proved largely effective.[49] By 2012, changes had been made to the V-22's hardware, software, and procedures in response to hydraulic fires in the nacelles, vortex ring state control issues, and opposed landings.[50]


In October 2015, NAVAIR tested rolling landings and takeoffs on a carrier, preparing for Carrier onboard delivery.[51]


Controversy


The V-22's development process has been long and controversial, partly due to its large cost increases,[52] some of which are caused by the requirement to fold wing and rotors to fit aboard ships.[53] The development budget was first planned for $2.5 billion in 1986, which increased to a projected $30 billion in 1988.[33] By 2008, $27 billion had been spent on the program and another $27.2 billion was required to complete planned production numbers.[26] Between 2008 and 2011, the estimated lifetime cost for maintaining the V-22 grew by 61 percent, mostly allocated to maintenance and support.[54]


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Its [The V-22's] production costs are considerably greater than for helicopters with equivalent capability—specifically, about twice as great as for the CH-53E, which has a greater payload and an ability to carry heavy equipment the V-22 cannot... an Osprey unit would cost around $60 million to produce, and $35 million for the helicopter equivalent.[55]


— Michael E. O'Hanlon, 2002



A V-22 with its wing rotated 90 degrees so it runs the length of the fuselage.

A V-22 in a compact storage configuration during the navy's evaluation, 2002


In 2001, Lieutenant Colonel Odin Lieberman, commander of the V-22 squadron at Marine Corps Air Station New River, was relieved of duty after allegations that he instructed his unit to falsify maintenance records to make the aircraft appear more reliable.[26][56] A total of three USMC officers were later implicated as having played a role in the falsification scandal.[52]


In October 2007, Time Magazine ran an article condemning the V-22 as unsafe, overpriced, and completely inadequate;[57] the Marine Corps responded by arguing that parts of the article's data were dated, obsolete, inaccurate, and reflected expectations too high for any new field of aircraft.[58] In 2011, it was reported by the controversial defense industry supported Lexington Institute[59][60][61] that the average V-22 mishap rate per flight hour over the past 10 years was approximately half of the average accident rate for the USMC fleet; the V-22's accident rate was the lowest of any Marine rotorcraft.[62] In 2011 Wired Magazine reported that the safety record was achieved by excluding ground incidents;[63] the USMC responded that MV-22 reporting was to the same standards as other aircraft in the Department of the Navy.[64]


By 2012, the USMC reported fleetwide readiness rate had risen to 68 percent;[65] however, the DOD's Inspector General later found 167 of 200 reports had "improperly recorded" information.[66] Captain Richard Ulsh blamed these errors on incompetence and said that they were "not malicious" or deliberate.[67] The required mission capable rate was 82%, but the average was 53% from June 2007 to May 2010.[68] In 2010, Naval Air Systems Command aimed for an 85% reliability rate by 2018.[69] From 2009 to 2014, readiness rates rose 25 percent to the "high 80s", while cost per flight hour had dropped 20 percent to $9,520 through a rigorous maintenance improvement program that focused on diagnosing problems before failures occur.[70] As of 2015[update], although the V-22 requires higher maintenance and has lower availability (62%) than traditional helicopters, it also has a lower incidence rate. The average cost per flight hour is US$9,156,[71] whereas the Sikorsky CH-53E Super Stallion cost about $20,000 per flight hour in 2007.[72] V-22 ownership cost was $83,000 per hour in 2013.[73]


While technically capable of autorotation if both engines fail in helicopter mode, a safe landing is difficult;[74] in 2005, a director of the Pentagon's testing office stated that in a loss of power while hovering below 1,600 feet (490 m), emergency landings "...are not likely to be survivable." V-22 pilot Captain Justin "Moon" McKinney stated that: "We can turn it into a plane and glide it down, just like a C-130."[57] A complete loss of power requires both engines to fail, as one engine can power both proprotors via interconnected drive shafts.[75] Though vortex ring state (VRS) contributed to a deadly V-22 accident, flight testing found the aircraft to be less susceptible to the condition than conventional helicopters.[6] A GAO report stated that the V-22 is "less forgiving than conventional helicopters" during this phenomenon.[76] Several test flights to explore the V-22's VRS characteristics were canceled.[77] The USMC trains pilots in the recognition of and recovery from VRS, and has instituted operational envelope limits and instrumentation to help pilots avoid VRS conditions.[33][78]


Production




A CV-22 off the coast of Greenland receiving fuel from an MC-130H


On 28 September 2005, the Pentagon formally approved full-rate production for the V-22,[79] with planned rate increase from 11 a year to between 24 and 48 a year by 2012. Of the 458 total planned, 360 are for the U.S. Marine Corps, 50 for the Air Force, and 48 for the Navy at an average cost of $110 million per aircraft, including development costs.[26] The V-22 had an incremental flyaway cost of $67 million per aircraft in 2008,[80] The U.S. Navy had hoped to shave about $10 million off that cost after a five-year production contract in 2013.[81] The cost for each CV-22 was $73 million in the FY 2014 budget.[82]


On 15 April 2010, the Naval Air Systems Command awarded Bell Boeing a $42.1 million contract to design an integrated processor in response to avionics obsolescence and add new network capabilities.[83] By 2014, Raytheon will provide an avionics upgrade that includes Situational awareness and Blue Force Tracking.[84] In late 2009, a contract for Block C upgrades upon the V-22 was awarded to Bell Boeing.[85] In February 2012, the Marine Corps received the first Block C Ospreys; these aircraft feature a new radar, along with additional mission management and electronic warfare equipment.[86] In 2015, options for upgrading all aircraft to the V-22C standard were examined.[87]


On 12 June 2013, the U.S. DoD awarded a $4.9 billion contract to Bell and Boeing for 99 V-22s in production Lots 17 and 18, including 92 MV-22s for the Marine Corps. Work is expected to be completed in September 2019.[88] A provision gives NAVAIR the option to order 23 more Ospreys.[89] The combined cost of the June 2013 contract and other associated contracts for the order totaled $6.5 billion.[90]


In 2013, Bell began to lay off workers on the V-22 production line following the implementation of defense cuts, which had reduced the US order to about half the originally planned number of aircraft.[2][91] Production rate went from 40 in 2012 to 22 planned for 2015.[92] Manufacturing robots have replaced older automated machines for increased accuracy and efficiency in production. Large parts are held in place by suction cups and measured electronically. Raw materials arrive frozen.[93][94]


In March 2014, Air Force Special Operations Command (AFSOC) issued a Combat Mission Need Statement to develop armor to protect V-22 passengers. NAVAIR worked with a Florida-based composite armor company and the Army Aviation Development Directorate to develop and deliver the Advanced Ballistic Stopping System (ABSS) by October 2014. Costing $270,000, the ABSS consists of 66 plates fitting along interior bulkheads and deck, adding 800 lb (360 kg) to the aircraft's weight, affecting payload and unrefueled range. The ABSS can be installed or removed when needed in hours and partially assembled in pieces for partial protection of specific areas. As of May 2015, 16 kits had been delivered to the USAF.[95][96]


In 2015, Bell-Boeing set up the V-22 Readiness Operations Center (VROC) at Ridley Park, Pennsylvania to gather information from each aircraft to improve fleet performance in a similar manner as the F-35's Autonomic Logistics Information System (ALIS).[97]


Design


Overview



A closeup of a MV-22B's rotor and engine tilted slightly upward.

Closeup of rotor and engine of a MV-22B


The Osprey is the world's first production tiltrotor aircraft, with one three-bladed proprotor, turboprop engine, and transmission nacelle mounted on each wingtip.[98] It is classified as a powered lift aircraft by the Federal Aviation Administration.[99] For takeoff and landing, it typically operates as a helicopter with the nacelles vertical and rotors horizontal. Once airborne, the nacelles rotate forward 90° in as little as 12 seconds for horizontal flight, converting the V-22 to a more fuel-efficient, higher speed turboprop aircraft. STOL rolling-takeoff and landing capability is achieved by having the nacelles tilted forward up to 45°.[100][101] Other orientations are possible.[102] It has a ferry range of over 2,100 nmi. Its operational range is 1,100 nmi.[103]


Composite materials make up 43% of the airframe, and the proprotor blades also use composites.[100] For storage, the V-22's rotors fold in 90 seconds and its wing rotates to align, front-to-back, with the fuselage.[104] Due to the requirement for folding rotors, their 38-foot diameter is 5 feet less than optimal for vertical takeoff, resulting in high disk loading.[102] Most missions use fixed wing flight 75% or more of the time, reducing wear and tear and operational costs. This fixed wing flight is higher than typical helicopter missions allowing longer range line-of-sight communications for improved command and control.[26]


Exhaust heat from the V-22's engines can potentially damage the ships' flight decks and coatings. Naval Air Systems Command (NAVAIR) devised a temporary fix of portable heat shields placed under the engines, and determined that a long-term solution would require redesigning decks with heat resistant coating, passive thermal barriers, and ship structure changes. Similar changes are required for F-35B operations.[105] In 2009, DARPA requested solutions for installing robust flight deck cooling.[106] A heat-resistant anti-skid metal spray named Thermion has been tested on USS Wasp.[107]


Propulsion


The V-22's two Rolls-Royce AE 1107C engines are connected by drive shafts to a common central gearbox so that one engine can power both proprotors if an engine failure occurs.[75] Either engine can power both proprotors through the wing driveshaft.[74] However, the V-22 is generally not capable of hovering on one engine.[108] If a proprotor gearbox fails, that proprotor cannot be feathered, and both engines must be stopped before an emergency landing. The V-22's autorotation characteristics are poor partly because the rotors have low inertia.[74]




V-22 with rotors tilted, condensation trailing from propeller tips


In September 2013, Rolls-Royce announced that it had increased the AE-1107C engine's power by 17 percent via the adoption of a new Block 3 turbine, an increase in fuel valve flow capacity, and accompanying software updates. The upgrade should increase the reliability in high-altitude, high-heat conditions and boost maximum payload limitations from 6,000 ft to 8,000 ft. A Block 4 upgrade is reportedly being examined, which may increase power by up to 26 percent, producing close to 10,000 hp, and improve fuel consumption.[109]


In August 2014, the U.S. military issued a request for information (RFI) for a potential drop-in replacement for the AE-1107C engines. Submissions must have a power rating of no less than 6,100 shp (4,548.78 kW) at 15,000 rpm, operate at up to 25,000 ft (7,600 m) at up to 130 degrees Fahrenheit (54.4 degrees Celsius), and fit into the existing nacelles on the wings with minimal structural or external modifications.[110] In September 2014, the US Navy was considering contracting for an alternative engine supplier in order to reduce costs. In the V-22 program, the Navy purchases engines separately from the aircraft themselves.[111] The General Electric GE38 has been considered as a replacement, providing commonality with the Sikorsky CH-53K King Stallion.[112]


The V-22 has a maximum rotor downwash speed above 80 knots, more than the 64 knots lower limit of a hurricane.[113][114] The rotorwash usually prevents usage of the starboard door in hover, instead the rear ramp is used for rappelling and hoisting.[74][115] Boeing has stated the V-22 design loses 10 percent of its vertical lift over a tiltwing design when operating in helicopter mode because of airflow resistance due to the wings, but that the tiltrotor design has better short takeoff and landing performance.[116] V-22s must maintain at least 25 ft (7.6 m) of vertical separation between each other to avoid each other's rotor wake, which can cause turbulence and potentially lead to a loss of control.[96]


Avionics




A MV-22 Osprey cockpit on display at 2012 Wings over Gillespie


The V-22 is equipped with a glass cockpit, which incorporates four Multi-function displays (MFDs, compatible with night-vision goggles)[74] and one shared Central Display Unit (CDU), to display various images including: digimaps, imagery from the Turreted Forward Looking Infrared System[117] primary flight instruments, navigation (TACAN, VOR, ILS, GPS, INS), and system status. The flight director panel of the Cockpit Management System (CMS) allows for fully coupled (autopilot) functions that take the aircraft from forward flight into a 50 ft (15 m) hover with no pilot interaction other than programming the system.[118] The glass cockpit of the canceled CH-46X was derived from the V-22.[119] The fuselage is not pressurized, and personnel must wear on-board oxygen masks above 10,000 feet.[74]


The V-22 has triple-redundant fly-by-wire flight control systems, which included computerized damage control to automatically isolate damaged areas.[120][121] With the nacelles pointing straight up in conversion mode at 90° the flight computers command the aircraft to fly like a helicopter, with cyclic forces being applied to a conventional swashplate at the rotor hub. With the nacelles in airplane mode (0°) the flaperons, rudder, and elevator fly similar to an airplane. This is a gradual transition, occurring over the nacelles' rotation range; the lower the nacelles, the greater effect of the airplane-mode control surfaces.[122] The nacelles can rotate past vertical to 97.5° for rearward flight.[123][124] The V-22 can use the "80 Jump" orientation with the nacelles at 80° for takeoff to quickly achieve high altitude and speed.[102] The control systems automate and simplify to the extent that the V-22 can hover in low wind with no hands on the controls. According to some who have flown the aircraft, former fixed-wing pilots may be preferable over helicopter ones as they are not trained to constantly adjust the controls while hovering.[102][74]


Armament


The Osprey can be armed with one 7.62×51mm NATO (.308 in caliber) M240 machine gun or .50 in caliber (12.7 mm) M2 machine gun on the loading ramp, that can be fired rearward when the ramp is lowered. A .50 in GAU-19 three-barrel Gatling gun mounted below the nose was studied for future upgrade.[125]BAE Systems developed a belly-mounted, remotely operated gun turret system for the V-22,[126] named the Interim Defense Weapon System (IDWS).[127] The IDWS is remotely operated by a gunner inside the aircraft, who acquires targets via a separate pod using color television and forward looking infrared imagery.[128] The IDWS was installed on half of the first V-22s deployed to Afghanistan in 2009,[127] but found limited use due to its 800 lb (360 kg) weight and restrictive rules of engagement.[129]



M240 machine gun mounted on V-22 loading ramp with a view of Iraq landscape with the aircraft in flight


M240 machine gun mounted on V-22 loading ramp


There were 32 IDWSs available to the Marine Corps in June 2012. The system had not been fired in combat as V-22s were routinely escorted by helicopter gunships and close air support aircraft, allowing them to focus on their transport role; squadrons also often flew without the belly gun, as the added weight reduced its cargo-carrying capacity. The Osprey's speed means that it can outrun supporting conventional helicopters, thus requiring a self-defense capability on long-range missions, and operate independently. The infrared gun camera has proven valuable for reconnaissance and surveillance. Other weapons are being studied to provide an all-quadrant defensive weapon system including nose guns, door guns, and nonlethal countermeasures to work with the current ramp-mounted machine gun and the IDWS.[130]


In 2014, the USMC revealed plans for new V-22 weapons "to increase all-axis, stand-off, and precision capabilities", which may be potentially operated by additional crew members. Armament increases are for enhanced offensive capabilities to special rapid crisis response task forces, rather than as an attack platform. The V-22 could be adapted for various precision weapons, including the AGM-114 Hellfire, AGM-176 Griffin, Joint Air-to-Ground Missile, and GBU-53/B SDB II. Fuselage-based hardpoints would be used to clear the proprotors.[131] In November 2014, Bell and Boeing conducted self-funded weapons tests using a V-22 equipped with a small pylon on the front port-side fuselage and the AN/AAQ-27A EO camera replaced with an L-3 Wescam MX-15 sensor/laser designator. 26 unguided Hydra 70 rockets, two guided APKWS rockets, and two Griffin B missiles were fired over five flights. The USMC and USAF seek a traversable nose-mounted weapon connected to a helmet-mounted sight; recoil complicates integrating a forward-facing gun.[132] A pylon on either side of the fuselage can carry 300 lb (140 kg) of munitions.[133]


Refueling capability


Boeing is developing a roll-on/roll-off aerial refueling kit, which would give the V-22 the ability to refuel other aircraft. Having an aerial refueling capability that can be based on Wasp-class amphibious assault ships would increase the striking power of Marine F-35Bs, as they would not rely on refueling assets that could only be based on full-sized Nimitz-class aircraft carriers or from land bases. The roll-on/roll-off kit can also be applicable to intelligence, surveillance and reconnaissance (ISR) functions.[134] Boeing funded a non-functional demonstration on a VMX-22 aircraft; a prototype kit was successfully tested with an F/A-18 on 5 September 2013.[135]


The high-speed version of the hose/drogue refueling system is designed to be deployed at 185 knots (213 mph; 343 km/h) and function at up to 250 knots (290 mph; 460 km/h). Onboard tanks and a roll-on/roll-off bladder can contain up to 12,000 lb (5,400 kg) of fuel. The operator must open the ramp to extend the refueling hose, then raise the ramp once extended, with the top ramp door left open. The V-22 could refuel rotary-wing aircraft, but it would require a separate drogue used specifically by helicopters and a partially converted nacelle.[136] Since many Marine Corps ground vehicles can run on aviation fuel, a refueling V-22 could also service them. In late 2014, it was stated that such tankers could be operational by 2017,[137] but a contract delay pushed IOC to late 2019.[138]


While the Navy has not declared a firm interest to use the V-22 Aerial Refueling System (VARS) on its planned COD fleet, the capability could be leveraged later on.[139] Boeing had conducted an internally financed proof of concept for the roll-on/roll-off capability, with an anticipated USMC contract providing funds to "productionise the kit". VARS would become operational in FY 2018 and allow the Osprey to become the USMC's "recovery tanker" to refuel inbound aircraft to remain aloft while awaiting landing clearance for available deck space.[140] As part of a 26 May 2016 contract award to Boeing,[141]Cobham was contracted to adapt their FR-300 hose drum unit as used by the KC-130 in October 2016.[142]


Operational history


U.S. Marine Corps



Ground crew refuel an MV-22 before a mission in central Iraq at night. The rotors are turning and the tips are green, forming green circles.

Crew members refuel an MV-22 before a night mission in Iraq, 2008


Since March 2000, VMMT-204 has conducted Marine Corps crew training for the V-22. On 3 June 2005, Marine Corps helicopter squadron Marine Medium Helicopter 263 (HMM-263) stood down to transition to the MV-22.[143] On 8 December 2005, Lieutenant General James Amos, commander of II Marine Expeditionary Force, accepted delivery of the first fleet of MV-22s, delivered to HMM-263. The unit reactivated on 3 March 2006 as the first MV-22 squadron, redesignated as VMM-263. On 23 March 2007, HMM-266 became Marine Medium Tiltrotor Squadron 266 (VMM-266) at Marine Corps Air Station New River, North Carolina.[144]


The MV-22 reached initial operational capability (IOC) with the U.S. Marine Corps on 13 June 2007.[1] The Osprey has been replacing the CH-46 Sea Knight since 2007; the Sea Knight was retired in October 2014.[145][146][147] On 10 July 2007, an MV-22 landed aboard the Royal Navy aircraft carrier HMS Illustrious, the first time a V-22 had landed on a non-U.S. vessel.[148]


On 13 April 2007, the Marine Corps announced the first V-22 combat deployment at Al Asad Airbase, Iraq.[149][150] On 17 September 2007, 10 MV-22Bs of VMM-263 left for Iraq aboard USS Wasp. The decision to use a ship instead of self-deploying was made because of concerns over icing during the North Atlantic portion of the trip, lack of available KC-130s for mid-air refueling, and Wasp's availability.[151]


On arrival, they were used in Iraq's western Anbar province for cargo and troop movements, as well as riskier "aero-scout" missions. General David Petraeus, the top U.S. military commander in Iraq, used one to visit troops around Iraq on Christmas Day 2007;[152] as did then-presidential candidate Barack Obama during his 2008 tour of Iraq.[153] Obtaining spare parts proved problematic.[154] By July 2008, the V-22 had flown 3,000 sorties totaling 5,200 hours in Iraq.[155] General George J. Trautman, III praised the V-22's increased speed and range over legacy helicopters, stating that "it turned his battle space from the size of Texas into the size of Rhode Island."[156] Through 2009, V-22s had been fired upon several times by man-portable air-defense systems, and small arms with none lost to enemy fire.[157]



A side view of an MV-22 resting on sandy ground with its ramp lowered.

A MV-22 of VMM-162 in Iraq, 2008


A Government Accountability Office study reported that by January 2009, 12 MV-22s were operating in Iraq and they completed all assigned missions; mission capable rates averaged 57% to 68%, and an overall full mission capable rate of 6%. The report also stated that the aircraft had shown weakness in situational awareness, maintenance, shipboard operations and transport capability.[158][159] The study concluded that "...deployments confirmed that the V-22’s enhanced speed and range enable personnel and internal cargo to be transported faster and farther than is possible with the legacy helicopters it is replacing."[158]


The MV-22 deployed to Afghanistan in November 2009 with VMM-261,[160][161] and saw its first offensive combat mission, Operation Cobra's Anger, on 4 December 2009. Ospreys assisted in inserting 1,000 Marines and 150 Afghan troops into the Now Zad Valley of Helmand Province in southern Afghanistan to disrupt Taliban communication and supply lines.[127] On 18 February 2011, Marine Commandant General James Amos indicated MV-22s deployed to Afghanistan had surpassed 100,000 flight hours and were noted as "the safest airplane, or close to the safest airplane” in the Marine Corps inventory.[162]


In January 2010, the MV-22 was sent to Haiti as part of Operation Unified Response relief efforts after the earthquake there, the type's first humanitarian mission.[163] In March 2011, two MV-22s from Kearsarge participated in a mission to rescue a downed USAF F-15E crew member during Operation Odyssey Dawn.[164][165] On 2 May 2011, following Operation Neptune's Spear, the body of Osama bin Laden, founder of the al-Qaeda terrorist group, was flown by a MV-22 to the aircraft carrier Carl Vinson in the Northern Arabian Sea, prior to his burial at sea.[166]




Marines boarding an MV-22 at Marine Corps Air Ground Combat Center Twentynine Palms in 2010


In 2013, several MV-22s received communications and seating modifications to support the Marine One presidential transport squadron due to the urgent need for CH-53Es in Afghanistan.[167][168] On 11 August 2013, two MV-22s from Marine Helicopter Squadron One (HMX-1) made their debut ferrying Secret Service agents, White House staff, and press members from CGAS Cape Cod to Martha's Vineyard during the President's vacation.[169] In May 2010, Boeing announced plans to submit the V-22 for the VXX presidential transport replacement.[170]


Several Japanese politicians and Okinawa residents opposed a V-22 deployment to Japan in July 2012, mainly due to several high-profile accidents.[171][172][173] On 14 June 2013, an MV-22 landed on JS Hyūga off the coast of California, the first time a V-22 had landed on a Japan Maritime Self-Defense Force vessel.[174] In January 2014, a MV-22 landed aboard the French Mistral-class amphibious assault ship Dixmude.[175] A Marine MV-22 landed on ROKS Dokdo on 26 March 2015, marking the first landing of an Osprey on a Republic of Korea Navy amphibious ship.[176]




USMC V-22 Osprey taking off from USS Boxer


From 2 to 5 August 2013, two MV-22s completed the longest distance Osprey tanking mission to date. Flying from Marine Corps Air Station Futenma in Okinawa alongside two KC-130J tanker aircraft, the Ospreys flew to Clark Air Base in the Philippines on 2 August, then to Darwin, Australia on 3 August, Townsville, Australia on 4 August, and finally rendezvoused with Bonhomme Richard on 5 August.[177]


In 2013, the USMC formed an intercontinental response force, the Special Purpose Marine Air-Ground Task Force - Crisis Response - Africa (SPMAGTF-CR-AF),[178] equipped with V-22s outfitted with specialized communications equipment.[179] In 2013, following Typhoon Haiyan, 12 MV-22s of the 3rd Marine Expeditionary Brigade were deployed to the Philippines for disaster relief operations.[180] The V-22's capabilities were described as "uniquely relevant", being able to fly faster and with greater payload while moving essential supplies to remote sites throughout the island archipelago.[181]


The V-22 deployment to Afghanistan was set to conclude in late 2013 with the drawdown of combat operations; however, VMM-261 was directed to extend operations for a new role, casualty evacuation, for which it was better suited than helicopters as its speed better enabled casualties to reach a hospital within the 'golden hour'; they were fitted with medical equipment such as heart-monitors and basic triage supplies.[182]


In 2014, the SPMAGTF-CR-AF supported the time-critical effort against the Ebola virus epidemic in Liberia, flying 1,200 people and 78,000 lb (35 t) of cargo in V-22s.[71]


In November 2014, three MV-22Bs were placed on alert at Al Jaber Air Base in Kuwait to be ready within 30 minutes to recover downed pilots during the Military intervention against ISIL. On 29 occasions between 1 November and 24 April 2015, two Ospreys and a KC-130J aerial tanker assigned to this Tactical Recovery of Aircraft and Personnel (TRAP) mission spent 145 flight hours loitering, ready to perform rescue missions if required. The only pilot that was downed was a Jordanian, but he did not have a radio on him when he ejected and landed too close to ISIL forces.[183]


In January 2017, during a special forces raid in Yemen, two MV-22s were called in to evacuate the special forces troops. One Osprey suffered an engine failure causing a hard landing which injured two of the crew, and was later destroyed with a guided bomb.[184]


Melania Trump is the first First Lady of the United States to fly in the V-22 Osprey, from Anacostia–Bolling to Langley–Eustis and from there to a carrier landing on the USS George H.W. Bush supercarrier, during a two day visit in early December 2018.[185]


U.S. Air Force



Two USAF CV-22s in a staggered pattern with their rotors vertical preparing to land at Holloman Air Force Base, New Mexico.

Two USAF CV-22s landing at Holloman AFB, New Mexico in 2006


The Air Force's first operational CV-22 was delivered to the 58th Special Operations Wing (58th SOW) at Kirtland Air Force Base, New Mexico on 20 March 2006. This and subsequent aircraft became part of the 58th SOW's fleet of aircraft used for training pilots and crew members for special operations use.[186] On 16 November 2006, the Air Force officially accepted the CV-22 in a ceremony conducted at Hurlburt Field, Florida.[187] The Air Force first used the CV-22 on a non-training mission to perform search and rescue from Kirtland Air Force Base on 4 October 2007.[188]


The U.S. Air Force's first operational deployment of the Osprey sent four CV-22s to Mali in November 2008 in support of Exercise Flintlock. The CV-22s flew nonstop from Hurlburt Field, Florida with in-flight refueling.[6] AFSOC declared that the 8th Special Operations Squadron reached Initial Operational Capability on 16 March 2009, with six CV-22s in service.[189]


In June 2009, CV-22s of the 8th Special Operations Squadron delivered 43,000 pounds (20,000 kg) of humanitarian supplies to remote villages in Honduras that were not accessible by conventional vehicles.[190] In November 2009, the 8th SO Squadron and its six CV-22s returned from a three-month deployment in Iraq.[191]




File:Bell-Boeing V-22 Osprey.ogvPlay media

V-22 Osprey USAF video


In August 2012, the USAF found that "CV-22 wake modeling is inadequate for a trailing aircraft to make accurate estimations of safe separation from the preceding aircraft."[192]


On 21 December 2013, three CV-22s came under small arms fire while on a mission to evacuate American civilians in Bor, South Sudan during the 2013 South Sudanese political crisis. The three aircraft were damaged and four crew wounded; the mission was aborted and the aircraft flew 500 mi (800 km) to Entebbe, Uganda. South Sudanese officials stated that the attackers were rebels.[193][194] The CV-22s, of the 8th Special Operations Squadron, had flown to Bor over three countries across 790 nmi (910 mi; 1,460 km). The formation was hit 119 times, causing flight control failures and hydraulic and fuel leaks on all three aircraft. Due to fuel leaks, multiple air-to-air refuelings were performed en route.[195] Following the South Sudan incident, AFSOC developed optional armor floor panels for the V-22.[95]


On 3 July 2014, V-22 aircraft carried Delta Force commandos to a campsite in eastern Syria where Islamic State militants had held American and other hostages. The commandos eliminated the militants at the site, but found that the hostages had been moved elsewhere and returned home empty handed.[196]


The Air Force is looking to configure the CV-22 to perform combat search and rescue in addition to its primary long-range special operations transport mission. The Osprey would act as a complement to Air Force HH-60G Pave Hawk and planned HH-60W rescue helicopters, being employed in scenarios where its ability to cover more ground quickly would be better suited to search and rescue than more nimble but slower helicopters.[197]


On 5 April 2018, Air Force announced that it is to deploy five CV-22 Osprey aircraft to Yokota Air Base in Japan earlier than planned "to help address regional security concerns" in the Pacific region.[198]


U.S. Navy




A U.S. Marine MV-22 landing on the flight deck of aircraft carrier Nimitz




Artist's impression of a pair of CMV-22Bs in Navy livery


The V-22 program originally included Navy 48 HV-22s, but none were ordered.[26] In 2009, it was proposed that the V-22 replace the C-2 Greyhound for Carrier Onboard Delivery (COD) duties. One advantage of the V-22 is the ability to deliver supplies and people between non-carrier ships beyond helicopter range.[199][200] An MV-22 landed and refueled onboard Nimitz as part of an evaluation in October 2012.[201] In 2013, cargo handling trials occurred on Harry S. Truman.[202] Proponents said that the V-22 is capable of similar speed, payload capacity, and lift performance as the C-2, and can carry greater payloads over short ranges, up to 20,000 lb, including suspended external loads. The C-2 can only deliver cargo to carriers, requiring further distribution to smaller vessels via helicopters, while the V-22 is certified for operating upon amphibious ships, aircraft carriers, and logistics ships. It could also take some helicopter roles by fitting a 600 lb hoist to the ramp and a cabin configuration for 12 non-ambulatory patients and five seats for medical attendants.[203] Boeing designed a special frame for the V-22 to carry the Lockheed Martin F-35's F135 engine.[204]


On 5 January 2015, the Navy and Marines signed a memorandum of understanding (MOU) to buy the V-22 for the COD mission, and was confirmed in the Navy's FY 2016 budget.[205] Initially designated HV-22, four aircraft would be bought each year from 2018–2020.[206][207] It incorporates an extended-range fuel system for an 1,150 nmi (1,320 mi; 2,130 km) unrefueled range, a high-frequency radio for over-the-horizon communications, and a public address system to communicate with passengers;[208][209] the range increase comes from extra fuel bladders[210] through larger external sponsons, the version's only physical difference from other Osprey variants. Its primary mission is long-range aerial logistics, but other conceivable missions include personnel recovery and special warfare.[211] In February 2016, the Navy officially designated it as the CMV-22B.[212] The Navy's program of record originally called for 48 aircraft, but it later determined that only 44 were required. Production of the CMV-22 will begin in FY 2018 and start deliveries in 2020.[213][214] Bell and Boeing have pitched the V-22 as a Navy platform for various missions, such as communications, electronic warfare, or aerial refueling; the Navy has a known gap in tactical aerial refueling.[215] Other roles include search and rescue and anti-submarine warfare.[216][217]


The Navy ordered the first 39 CMV-22B COD Ospreys in June 2018; initial operating capability is anticipated to be achieved in 2021, with fielding to the fleet by the mid-2020s.[218]


Japan Self-Defense Forces


In 2012, former Defense Minister Satoshi Morimoto ordered an investigation of the costs of V-22 operations. The V-22 exceeds current Japan Self-Defense Forces helicopters in terms of range, speed, and payload. The ministry anticipated deployments to the Nansei Islands and the Senkaku Islands, as well as in multinational cooperation with the U.S.[219] Japan considered plans to have V-22s in service in a maritime role by as early as 2015.[220] On 21 November 2014, the Japanese Ministry of Defense officially decided to procure 17 V-22s,[221] with deliveries planned from FY 2014 to FY 2019.[222] In January 2015, Japan's parliament approved a defense budget with funding for five V-22s.[223] The first V-22 for Japan was delivered in August 2017.[224]


In September 2018, the Japanese Ministry of Defense decided to delay the deployment of the first five MV-22B aircraft it had received amid opposition and ongoing negotiations in the Saga prefecture, where the aircraft are to be based.[225]


Potential operators


India


In 2015 the Indian Aviation Research Centre (ARC) became interested in acquiring four V-22 Ospreys for personnel evacuation in hostile conditions, logistic supplies, and deployment of the Special Frontier Force (SFF) in border areas. India had seen the Osprey perform in relief operations of the April 2015 Nepal earthquake.[226] Elements of the Indian Navy have also looked at the V-22 rather than the E-2D for Airborne early warning and control to replace the short-range Kamov Ka-31.[227] India is interested in purchasing six attack version V-22s for rapid troop insertion in border areas.[228][229]


Israel


Israel had shown interest in the V-22.[230][231] In 2009, Israel reportedly favored the Sikorsky CH-53K over the V-22.[232] In 2011, Israel was interested in using the V-22 to support special operations and search and rescue missions.[233] In 2013, Israel was interested in a possible lease of six to eight aircraft for special operations missions; the type is not to act as a replacement for existing rotorcraft.[234]


On 22 April 2013, an agreement was finalized to sell six V-22 to the Israel Air Force.[235] However, in October 2014, media reports implied Israel's deferment or cancelling of its V-22 procurement due to budget restraints and changing policies.[236][237] In December 2014, the Letter of Agreement offering a $400 million discount and early delivery formally expired,[238] the Defense Minister decided to wait until elections in March 2015 to push for approval from a new cabinet.[239] By the end of 2016, Israel had not ordered the V-22; Israel is instead showing interest in buying the C-47 Chinook helicopter or the CH-53K helicopter.[240] As of 2017, Israel had frozen its evaluation of the V-22 Osprey, "with a senior defence source indicating that the tiltrotor is unable to perform some missions currently conducted using its Sikorsky CH-53 transport helicopters."[241]


South Korea


In February 2015, the South Korean army showed interest in the V-22 for delivering special forces to islands in the Yellow Sea near North Korean territory; talks were held during 2015 on a possible Osprey buy.[242]


United Arab Emirates


In May 2012, it was reported that the United Arab Emirates was in the final negotiation stages to purchase several V-22s. It was reported that the UAE intended to use the Osprey to support special forces. Both the UAE and the Pentagon sought a $58 million unit cost.[243][244] On 10 November 2015, UAE selected an AW609 variant for search and rescue use[245] and denied that there were current negotiations regarding the V-22.[246]


Variants



A V-22 on a test flight with its rotors rotated almost to vertical.

A V-22 Osprey flies a test mission.



A front view of a U.S. Air Force CV-22 with its rotors facing forward flying over the Emerald Coast of Florida.

A CV-22 of 8th Special Operations Squadron flies over Florida's Emerald Coast.



V-22A

Pre-production full-scale development aircraft used for flight testing. These are unofficially considered A-variants after the 1993 redesign.[247]



CV-22B

U.S. Air Force variant for the U.S. Special Operations Command (USSOCOM). It conducts long-range special operations missions, and is equipped with extra wing fuel tanks, an AN/APQ-186 terrain-following radar, and other equipment such as the AN/ALQ-211,[248][249] and AN/AAQ-24 Nemesis Directional Infrared Counter Measures.[250] The fuel capacity is increased by 588 gallons (2,230 L) with two inboard wing tanks; three auxiliary tanks (200 or 430 gal) can also be added in the cabin.[251] The CV-22 replaced the MH-53 Pave Low.[26]



MV-22B

U.S. Marine Corps variant. The Marine Corps is the lead service in the V-22's development. The Marine Corps variant is an assault transport for troops, equipment and supplies, capable of operating from ships or expeditionary airfields ashore. It replaced the Marine Corps' CH-46E and CH-53D fleets.[252][253]



CMV-22B

U.S. Navy variant for the carrier onboard delivery (COD) role. Similar to the MV-22B but includes an extended-range fuel system, a high-frequency radio, and a public address system.[212]



EV-22

Proposed airborne early warning and control variant. The Royal Navy studied this AEW variant as a replacement for its current fleet of carrier-based Sea King ASaC.7 helicopters.[254]



HV-22

The U.S. Navy considered an HV-22 to provide combat search and rescue, delivery and retrieval of special warfare teams along with fleet logistic support transport. It chose the MH-60S for this role in 2001.[216] Naval Air Systems Command's 2011/2012 V-22 Osprey Guidebook lists the HV-22 for the U.S. Navy with the USAF and USMC variants.[255]



SV-22

Proposed anti-submarine warfare variant. The U.S. Navy studied the SV-22 in the 1980s to replace S-3 and SH-2 aircraft.[217]


Operators



A MV-22 Osprey with its rotors up to vertical with a HMMWV vehicle hanging by two sling wires.

A MV-22 delivers a Humvee to USNS Sacagawea




A U.S. Air Force CV-22 conducts a fly-pass at RIAT 2015



 Japan


  • Japan Self-Defense Forces (5 on order)[256]


 United States



  • United States Air Force[257]


    • 7th Special Operations Squadron[258]


    • 8th Special Operations Squadron[259]


    • 20th Special Operations Squadron[260]


    • 71st Special Operations Squadron[261]


    • 418th Flight Test Squadron[262]




  • United States Marine Corps[257]


    • HMX-1[263]


    • VMX-22[264]


    • VMM-161[265]


    • VMM-162[266]


    • VMM-163[267]


    • VMM-165[268]


    • VMM-166[269]


    • VMMT-204[270]


    • VMM-261[271]


    • VMM-263[272]


    • VMM-264[273]


    • VMM-266[274]


    • VMM-362[275]


    • VMM-363[276]


    • VMM-365[277]


    • VMM-561[278]




  • United States Navy – 44 CVM-22Bs on order, with deliveries to start in 2020.[213][214]


Accidents



The V-22 Osprey has had 12 hull-loss accidents with a total of 42 fatalities. During testing from 1991 to 2000, there were four crashes resulting in 30 fatalities.[33] Since becoming operational in 2007, the V-22 has had seven crashes resulting in 12 fatalities, and several minor incidents.[279] The aircraft's accident history has generated some controversy over its perceived safety issues.[280]


Aircraft on display




The V-22 Osprey on display at the American Helicopter Museum & Education Center



  • The third of six V-22A prototypes is on display at the American Helicopter Museum & Education Center in West Chester, Pennsylvania.[281]

  • CV-22B 99-021 – National Museum of the United States Air Force at Wright-Patterson AFB in Dayton, Ohio.[282]

  • MV-22 on display at the New River Aviation Memorial at Marine Corps Air Station New River in Jacksonville, North Carolina.[283]



Specifications (MV-22B)


MV-22 Osprey Line Drawing.svg

Data from Norton,[284] Boeing,[285]Bell guide,[100]Naval Air Systems Command,[286]and USAF CV-22 fact sheet[248]


General characteristics




  • Crew: Four (pilot, copilot and two flight engineers/crew chiefs)


  • Capacity:

    • 24 troops (seated), 32 troops (floor loaded), or

    • 20,000 lb (9,070 kg) of internal cargo, or up to 15,000 lb (6,800 kg) of external cargo (dual hook)

    • 1× Growler light internally transportable ground vehicle[287][288]




  • Length: 57 ft 4 in (17.5 m)


  • Rotor diameter: 38 ft 0 in (11.6 m)


  • Wingspan: 45 ft 10 in (14 m)


  • Width with rotors: 84 ft 7 in (25.8 m)


  • Height: 22 ft 1 in/6.73 m; overall with nacelles vertical (17 ft 11 in/5.5 m; at top of tailfins)


  • Disc area: 2,268 ft² (212 m²)


  • Wing area: 301.4 ft² (28 m²)


  • Empty weight: 33,140 lb (15,032 kg)


  • Loaded weight: 47,500 lb (21,500 kg)


  • Max. takeoff weight: 60,500 lb (27,400 kg) (self-deploy/long runway)


    • Maximum rolling takeoff weight: 57,000 lb (STOL)


    • Maximum vertical takeoff weight: 52,600 lb[51] (23,859 kg)






V-22's combat radius in Iraq, contrasted with the CH-46E's smaller combat radius.



  • Powerplant: 2 × Rolls-Royce Allison T406/AE 1107C-Liberty turboshafts, 6,150 hp (4,590 kW) each

Performance




  • Maximum speed: 275 knots (509 km/h, 316 mph[289]) at sea level / 305 kn (565 km/h; 351 mph) at 15,000 ft (4,600 m)[290]


  • Cruise speed: 241 kn (277 mph, 446 km/h) at sea level


  • Stall speed: 110 kn[74] (126 mph, 204 km/h) in airplane mode


  • Range: 879 nmi (1,011 mi, 1,627 km)


  • Combat radius: 390 nmi (426 mi, 722 km)


  • Ferry range: 1,940 nmi (2,230 mi, 3,590 km) with auxiliary internal fuel tanks


  • Service ceiling: 25,000 ft (7,620 m)


  • Rate of climb: 2,320–4,000[74] ft/min (11.8 m/s)


  • Glide ratio: 4.5:1[74]


  • Disc loading: 20.9 lb/ft² at 47,500 lb GW (102.23 kg/m²)


  • Power/mass: 0.259 hp/lb (427 W/kg)


Armament



  • 1× 7.62 mm (.308 in) M240 machine gun or .50 in (12.7 mm) M2 Browning machine gun on ramp, removable

  • 1× 7.62 mm (.308 in) GAU-17 minigun, belly-mounted, retractable, video remote control in the Remote Guardian System [optional][128][291]


Notable appearances in media



See also




Related development



  • AgustaWestland AW609

  • Bell Boeing Quad TiltRotor

  • Bell V-280 Valor

  • Bell XV-15


Aircraft of comparable role, configuration and era



  • Canadair CL-84

  • LTV XC-142



Related lists



  • List of military aircraft of the United States

  • List of VTOL aircraft


References





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  11. ^ Whittle 2010, p. 91.


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  13. ^ Whittle 2010, p. 155.


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  15. ^ Scroggs, Stephen K. "Army Relations with Congress: Thick Armor, Dull Sword, Slow Horse" page 232. Greenwood Press, 2000. .mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
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  • Markman, Steve and Bill Holder. "Bell/Boeing V-22 Osprey Tilt-Engine VTOL Transport (U.S.A.)". Straight Up: A History of Vertical Flight. Atglen, Pennsylvania: Schiffer Publishing, 2000.
    ISBN 0-7643-1204-9.

  • Norton, Bill. Bell Boeing V-22 Osprey, Tiltrotor Tactical Transport. Earl Shilton, Leicester, UK: Midland Publishing, 2004.
    ISBN 1-85780-165-2.

  • O'Hanlon, Michael E. Defense Policy Choices for the Bush Administration. Washington, D.C.: Brookings Institution Press, 2002.
    ISBN 0-8157-6437-5.

  • Schinasi, Katherine V. Defense Acquisitions: Readiness of the Marine Corps' V-22 Aircraft for Full-Rate Production. Darby, Pennsylvania: Diane Publishing, 2008.
    ISBN 1-4289-4682-9.

  • Whittle, Richard. The Dream Machine: The Untold History of the Notorious V-22 Osprey. New York: Simon & Schuster, 2010.
    ISBN 1-4165-6295-8.



External links








  • Official Boeing V-22 site

  • Official Bell V-22 site

  • V-22 Osprey web

  • V-22 Osprey history on Navy.mil

  • CV-22 fact sheet on USAF site

  • V-22 page on GlobalSecurity.org

  • "The V-22 Osprey", Documentary on the V-22 In Iraq

  • "Flight of the Osprey", U.S. Navy video of V-22 operations

  • Cutaway drawing of V-22 prototype

  • Newer cutaway drawing of V-22













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