Wednesday, July 31, 2013

Dassault Rafale

Dassault Rafale

The Dassault Rafale (French pronunciation: ​[ʁafal], squall)[3] is a French twin-engine, canard delta-wing, multirole fighter aircraft designed and built by Dassault Aviation. Dassault described the Rafale as being an omnirole fighter,[4][5] with a high level of agility,[6] capable of simultaneously performing air supremacy, interdiction, reconnaissance, and airborne nuclear deterrent missions. The Rafale is distinct from other European fighters of its era in that it is almost entirely built by one country, involving most of France's major defence contractors, such as Dassault, Thales and Safran.
In the late 1970s, the French Air Force and Navy were seeking to replace and consolidate their current fleets of aircraft. In order to reduce development costs and boost prospective sales, France entered into an arrangement with four other European nations to produce an agile multi-purpose fighter, but subsequent disagreements over workshare and differing requirements led to France's pursuit of its own development program. Dassault built a technology demonstrator which first flew in July 1986 as part of an eight-year flight-test programme, paving the way for the go-ahead of the project.
The Rafale's design and production processes exploited the unprecedented advancements in software technology; these have enabled the integration of formerly individual components and combined with intelligent automated analysis processes, known collectively as data fusion. Many of the aircraft's avionics and features, such as direct voice input (DVI), the RBE2 AA active electronically scanned array (AESA) radar and the Optronique secteur frontal (OSF) infra-red search and track sensor, were indigenously developed and produced for the Rafale programme. Originally scheduled to enter service in 1996, post-Cold War budget cuts and changes in priorities contributed to significant delays to the programme.
Introduced in 2001, the Rafale is being produced for both the French Air Force and for carrier-based operations in the French Navy. It has also been marketed for export to several countries, including selection by the Indian Air Force.[7] The Rafale has been used in combat over Afghanistan, Libya, and Mali; features such as the SPECTRA integrated defensive-aids system have been crucial advantages in these theatres. Several upgrades to the radar, engines, and avionics of the Rafale are planned to be introduced in the near-future.


Origins

Logo with black stylised word "Rafale" against white background
The logo of the Dassault Rafale programme
In the mid-1970s, both the French Air Force (Armée de l'Air) and Navy (Marine nationale) had requirements for a new generation of fighters to replace those in or about to enter service.[8] Because their requirements were similar, and to reduce cost, both departments issued a common request for proposal.[9] In 1975, the French Ministry of Aviation initiated studies for a new aircraft to complement the upcoming and smaller Mirage 2000, with each aircraft optimised for differing roles.[10]
In 1979, Dassault joined the MBB/BAe "European Collaborative Fighter" (ECA) project which was renamed the "European Combat Aircraft".[11] The French company contributed the aerodynamic layout of prospective twin-engine, single-seat fighter; however, the project collapsed in 1981 due to differing operational requirements of each partner country.[10] In 1983, the "Future European Fighter Aircraft" (FEFA) programme was initiated, bringing together Italy, Spain, West Germany, France and the United Kingdom to jointly develop a new fighter, although the latter three had their own aircraft developments.[12]
A number of factors led to the eventual split between France and the four countries. Around 1984 France reiterated its requirement for a carrier-capable version and demanded a leading role; moreover, France demanded a swing-role fighter that was lighter than a design desired by the other four nations. West Germany, UK and Italy opted out and established a new EFA programme.[8][13] In Turin on 2 August 1985, West Germany, UK and Italy agreed to go ahead with the Eurofighter; and confirmed that France, along with Spain, had chosen not to proceed as a member of the project.[14][15] Despite pressure from France, Spain rejoined the Eurofighter project in early September 1985.[16] The four-nation project would eventually result in the Eurofighter Typhoon.

Design phase and prototype

In France, the government proceeded with its own programme. The French Ministry of Defense required an aircraft capable of air-to-air and air-to-ground, all-day and adverse weather operations. It would perform roles previously filled by an assortment of dedicated platforms, including the Jaguar, F-8P Crusader, Mirage F1C/R/T, Mirage 2000/N, Etendard IVPM and Super Etendard.[8] As the Rafale would replace such a wide range of aircraft in the French Armed Forces, it justifies the high cost of exclusive French development of the airframe, avionics, propulsion system and armament, unlike other contemporary European fighter projects that required some level of international collaboration.[17]
During October–December 1978, prior to France's joining of the ECA, Dassault received contracts for the development of project ACT 92 (Avion de Combat Tactique). The following year, the National Office for Aviation Studies and Research began studying the possible configurations of the new fighter under the codename Rapace. By March 1980, the number of configurations had been narrowed down to four, two of which had a combination of canards, delta wings and a single vertical tail-fin.[10] In October 1982, the French Ministry of Defense announced that Dassault would build a technology demonstrator named Avion de Combat eXpérimental (ACX). France wanted to collaborate with West Germany and the UK on the project, but was prepared to build the ACX by itself. In 1984, the government decided to proceed with a combat variant of the ACX due to the conflicting technical criteria of the respective FEFA participant nations.[10][18]
The Dassault "Rafale A" technology demonstrator in 2006
The resultant Rafale A technology demonstrator was a large-delta winged fighter, with all-moving canards, embodying fly-by-wire (FBW) flight control system.[8] Construction of the demonstrator commenced in March 1984, even before a contract was signed with the DGA, France's defense procurement agency.[10] The technology demonstrator was rolled out in December 1985 in Saint-Cloud, and took its maiden flight on 4 July 1986 from Istres-Le Tubé Air Base in southern France.[8] During the one-hour flight, the project's chief test pilot Guy Mitaux-Maurouard took the aircraft to an altitude of 11,000 metres (36,000 ft) and a speed of Mach 1.3. The 9.5-tonne (21,000 lb) demonstrator stopped in 300 metres (980 ft) upon landing.[19]
Throughout the flight test programme, the Rafale A performed numerous day and night take-offs and landings aboard the carriers Clemenceau and Foch to investigate the pilot's field of view during carrier operations. It reached a speed of Mach 2 and a height of 13,000 metres (42,000 ft).[20] The demonstrator was initially powered by General Electric F404-GE-400 afterburning turbofans found on the F/A-18 Hornet, instead of the Snecma M88, to reduce the risk that often comes with a first flight, and since the M88 was not considered sufficiently mature for the initial trials programme.[3][8] It was not until May 1990 when the M88 replaced the port F404 in the demonstrator; thereafter, it reached Mach 1.4 and demonstrated supercruise, sustained supersonic flight without engagement of the afterburners. After 865 flights with four pilots, Rafale A was retired in January 1994.[8][20]
At the time of the Rafale A's maiden flight, France entered unsuccessful talks with Belgium, Denmark, the Netherlands and Norway about a possible collaboration on the Rafale as a multinational project; at the time, Belgium was reportedly interested in the Rafale B. In June 1987, prime minister Jacques Chirac declared that the country would proceed with the US$30 billion project; subsequently, on 21 April 1988, the French government awarded Dassault a contract for four Rafale prototpes—one Rafale C, two Rafale Ms and one Rafale B. The first out of an expected 330 Rafales was scheduled to enter service in 1996.[21][22][23][24] However, with the fall of the Berlin Wall and the subsequent collapse of the Soviet Union, signalling the end of the Cold War, the French government drastically reduced its defense budget. The French Air Force was reorganised, the Mirage 5F was completely phased out and a total of 55 Mirage F1Cs were upgraded to a tactical fighter configuration, redesignated as Mirage F1CT. The budgetary cuts prolonged the Rafale's development considerably.[8]
During the Rafale A flight test programme, the French government in 1989 looked at the F/A-18 Hornet as a potential replacement for the rapidly aging F-8 Crusader, which has been serving since the 1950s. The French Navy entered talks regarding the purchase of second-hand F/A-18s with Australia, Canada and the US, after the decision was made not to upgrade the Crusaders. The US Navy agreed to supply two F/A-18s to the French Navy for "interoperability testing" aboard the carrier Foch.[25][26] The French government would not proceed with a purchase of the twin-engine fighter.

Testing

A two-seater "Rafale B" during an aerial refueling
To meet the various roles expected of the new aircraft, the Air Force required two variants: the single-seat "Rafale C" (chasseur, meaning fighter) and the "Rafale B" (biplace, or two-seater). The prototype of the C model (designated C01) completed its first flight on 19 May 1991, signalling the start of a test programme which primarily aimed to test the M88-2 engines, man/machine interface and weapons, and expand the flight envelope.[27] Due to budget constraints, the second single-seat prototype was never built.[28]
The C01 differed significantly from the Rafale A. Although superficially identical to the technology demonstrator, it was smaller and more stealthy through the coating the canopy with gold, re-designing the fuselage-fin joint, and the addition of radar-absorbent materials (RAM). This aircraft also saw extensive application of composite and other materials, which both reduce the radar cross-section (RCS) and weight. Moreover, Dassault opted to reject variable engine inlets and a dedicated air brake, which lessens maintenance loads and saves weight.[29] The B01, the only prototype of the two-seat B variant, made its maiden flight on 30 April 1993.[27] It is 350 kilograms (772 lb) heavier than the single-seater, but carries 400 litres (106 US gal) less fuel. The aircraft was used for weapon-systems testing. Later it saw validation roles regarding weapon separation and, specifically, the carriage of heavy loads. The aircraft normally flies with 2,000-litre (528 US gal) external tanks, two Apache/Scalp cruise missiles, in addition to four air-to-air missiles.[30]
A French Navy "Rafale M" with tail hook deployed during landing aboard USS Theodore Roosevelt (CVN-71)
The Navy, meanwhile, sought a carrier-based aircraft to supersede its fleet of ageing Etendard IPVMs, F-8P Crusaders and Super Etendard Modernisés. While the Navy initially carried out a modernising program of the Crusaders, in the long term, the requirement was met with the Rafale M, a navalised variant. The M01, the naval prototype, first flew on 12 December 1991, followed by the second on 8 November 1993.[27][31] Since France had no land-based catapult test facility, catapult trials were initially carried out between during July–August  1992 and early the following year, at NAS Lakehurst in New Jersey. The aircraft then carried out trials aboard the carrier Foch in April 1993. Flown by Dassault's chief test pilot, Yves Kerhervé, M02 made its maiden flight in November that year, while the first prototype completed the third round of testing at Lakehurst in November and December 1993.[32]
The Rafale M features a greatly reinforced undercarriage to cope with the additional stresses of naval landings, an arrestor hook, and "jump strut" nosewheel, which only extends during short takeoffs, including catapult launches.[27] It also features a built-in ladder, carrier-based microwave landing system, and the new fin-tip Telemir system for syncing the inertial navigation system to external equipment.[30] Altogether, the naval modifications of the Rafale M increased its weight by 500 kilograms (1,100 lb) compared to other variants.[32] The Rafale M retains about 95% commonality with Air Force variants including,[33] although unusual for a carrier-borne aircraft, being unable to fold its multi-spar wings for reducing storage space. The size constraints were eased by the introduction of the Charles de Gaulle, France's first nuclear-powered carrier, which was considerably larger than previous carriers, the Foch and Clemenceau.



Production and upgrades

Initially, the Rafale B was to be just a trainer, but the Gulf and Kosovo Wars showed that a second crew member is invaluable on strike and reconnaissance missions; thus, in 1991 the Air Force switched its preferences towards the two-seater, announcing that 60% of the Rafale fleet would be made up of the variant.[34] The service originally envisaged taking delivery of 250 Rafales, but this was revised downwards to 234 aircraft, made up of 95 "A" and 139 "B" models";[31][35] this was further reduced to 212 aircraft.[34] The Navy, meanwhile, had 60 Rafales on order, down from 86 due to budget cuts.[31][34] Of the 60, 25 would be M single-seaters and 35 two-seat Ns.[35]
Production of the first aircraft series formally started in December 1992, but was suspended in November 1995 due to political and economic uncertainty. Production only resumed in January 1997 after the Ministry of Defense and Dassault agreed on a 48-aircraft (28 firm and 20 options) production run with delivery between 2002 and 2007.[34] A further order of 59 F-3 Rafales was announced in December 2004.[36] In November 2009 the French government ordered an additional 60 aircraft to take the total order for the French Air Force and Navy to 180.[37] As of 2011, a total of 180 Rafales has been ordered by France.[38] The Rafale is planned to be the French Air Force's primary combat aircraft until 2040 or later.[39]
During the Rafale's design phase, Dassault took advantage of Dassault Systemes' CATIA (Computer Aided Three-dimensional Interactive Application), a three-dimensional computer-aided design, manufacture and engineering software suite that would become standard across the industry.[40] CATIA enabled digitisation and efficiency improvements throughout the Rafale programme, including implementing recently developed processes such as digital mockup (DMU) and product data management (PDM). It consists of 15 GB databases of each of the Rafale's components, assisting with various aspects of the design, manufacture and through-life support. The use of such software made the Rafale a "truly virtual aircraft", according to Dassault officials.[40]
The Rafale final assembly site is located adjacent to Bordeaux–Mérignac Airport
According to the French magazine L'Usine nouvelle, apart from several non-sensitive components sourced from the United States, the Rafale is manufactured almost entirely in France. Different elements are produced in numerous factories across the country, and final assembly takes place near Bordeaux–Mérignac Airport. For example, the flight control surfaces are fabricated in Haute-Savoie, the wings and avionics in Gironde, the centre fuselage in Val-d'Oise, and the engines in Essonne.[41] Roughly 50% of the Rafale is produced by Dassault and the other half divided between two major partners, Thales and Safran; they rely on a network of 500 subcontractors. Altogether, the programme employs 7,000 workers. As of 2012, the fabrication process of each fighter took 24 months, with an annual production rate of eleven aircraft.[41]
Deliveries of the Rafale's naval version was a high priority to replace the Navy's considerably aged F-8 Crusaders; the first production model for the French Navy undertook its first flight on 7 July 1999.[42] Their first naval deployment was in 2002 on board the Charles de Gaulle; by March 2002, the aircraft carrier was stationed in the Gulf of Oman, where its complement of Rafales undertook training operations.[43] In December 2004, the Air Force received its first three F2 standard Rafale Bs at the Centre d'Expériences Aériennes Militaires (CEAM) at Mont-de-Marsan, where they were tasked to undertake operational evaluation and pilot conversion training.[31]
The total programme cost, as of 2010, was around €40.690 billion, which translated to a unit programme cost of approximately €142.3 million. The unit flyaway price as of 2010 was €101.1 million for the F3+ version.[1] The following year, the French Senate revised the programme cost up to €43.56 billion for 286 fighters, which translates to a unit price of €152 million. This figure takes in account improved hardware of the F3 standard, and which includes development costs over a period of 40 years, including inflation.[44]
Diagram showing the employment of different construction material
In 2008, French officials were reportedly considering equipping the Rafale to launch miniaturised satellites.[45] In 2011, upgrades under consideration included a software radio and satellite link, a new laser-targeting pod, smaller bombs and enhancements to the aircraft's data-fusion capacity.[46] In July 2012, fleetwide upgrades of the Rafale's battlefield communications and interoperability capabilities commenced


Overview

The Rafale was developed as a modern jet fighter with a very high level of agility; Dassault chose to combine a delta wing with active close-coupled canard to maximize maneuverability, the aircraft is capable of withstanding 9 g or −3.6 g. The Rafale is an aerodynamically unstable aircraft, thus digital fly-by-wire flight controls are employed to artificially enforce and maintain stability.[49][N 1] The aircraft's canards also act to reduce the minimum landing speed to 115 knots (213 km/h; 132 mph), while in flight, airspeeds as low as 15 knots (28 km/h; 17 mph) have been observed during training missions.[49] According to simulations by Dassault, the Rafale's has sufficient low speed performance to operate from STOBAR-configured aircraft carriers, and can take off using a ski-jump with no modifications.[51]
Although not a full-aspect stealth aircraft, the cost of which was viewed as unacceptably excessive, the Rafale was designed for a reduced radar cross-section (RCS) and infra-red signature.[52][53] In order to reduce the RCS, changes from the initial technology demonstrator include a reduction in the size of the tail-fin, fuselage reshaping, repositioning of the engine air inlets underneath the aircraft's wing, and the extensive use of composite materials and serrated patterns for the construction of the trailing edges of the wings and canards.[39][52] Many of the features designed to reduce the Rafale's visibility to threats remain classified.[50]

Cockpit

The Rafale's glass cockpit was designed around the principle of data fusion – a central computer intelligently selects and prioritises information to display to pilots for simpler command and control.[N 2] The primary flight controls are arranged in a hands-on-throttle-and-stick (HOTAS)-compatible configuration, with a right-handed side-stick controller and a left-handed throttle.[55] The seats is inclined rearwards at an angle of 29° to improve g-force tolerance during maneouvering and to provide a less restricted external pilot view.[56] An intelligent flight suit worn by the pilot is automatically controlled by the aircraft to counteract in response to calculated g-forces.[57]
Forward section of Rafale on display at the Paris Air Show, 2005
Great emphasis has been placed on pilot workload minimisation across all operations.[50] Among the features of the highly digitised cockpit is an integrated direct voice input (DVI) system, allowing a range of aircraft functions to be controlled by spoken voice commands, simplifying the pilot's access to many of the controls.[55] Developed by Crouzet, the DVI is capable of managing radio communications and countermeasures systems, the selection of armaments and radar modes, and controlling navigational functions.[58] For safety reasons, DVI is deliberately not employed for safety-critical elements of the aircraft's operation, such as the final release of armaments.[59]
For displaying information gathered from a range of sensors across the aircraft, the cockpit features a wide-angle holographic head-up display (HUD) system, two head-down flat-panel colour multi-function displays (MFDs) as well as a central collimated display; these displays have been strategically placed to minimise pilot distraction from the external environment.[60] Some displays feature a touch interface for ease of HMI.[10] Multiple types of head-mounted displays (HMD) for target controlling can also be integrated; a HMD system is available as optional equipment as of 2013.[61][62] The cockpit is fully compatible with night vision goggles (NVG).[55]
In the area of life-support, the Rafale is fitted with a Martin-Baker Mark 16F "zero-zero” ejection seat, capable of operation at zero speed and zero altitude. An on-board oxygen generating system, developed by Air Liquide, eliminates the need to carry bulky oxygen canisters.[63] The Rafale's fight computer has been programmed to counteract pilot disorientation and to employ automatic recovery of the aircraft during negative flight conditions;[clarification needed] auto-pilot and auto-throttle controls are also integrated, and are activated by switches located on the primary flight controls.[55]

Avionics and equipment

The Rafale core avionics systems employ an integrated modular avionics (IMA), called MDPU (modular data processing unit). This architecture hosts all the main aircraft functions such as the flight management system, data fusion, fire control, and the man-machine interface.[50][N 3] The total value of the radar, electronic communications and self-protection equipment is about 30% of the cost of the entire aircraft.[64] The IMA has since been installed upon several upgraded Mirage 2000 fighters,[65] and incorporated into the civilian airliner, the Airbus A380.[66] According to Dassault, the IMA greatly assists combat operations via data fusion, the continuous integration and analysis of the various sensor systems throughout the aircraft, and has been designed for the incorporation of new systems and avionics throughout the Rafale's service life.[50]
Annotated diagram of SPECTRA's elements
The Rafale features an integrated defensive-aids system named SPECTRA, which protects the aircraft against airborne and ground threats, developed as a joint venture between Thales and MBDA.[67] Various methods of detection, jamming, and decoying have been incorporated, and the system has been designed to be highly re-programmable for addressing new threats and incorporating additional sub-systems in the future.[68][N 4] Operations over Libya were greatly assisted by SPECTRA, which allowed the Rafale to perform missions independently from the support of dedicated Suppression of Enemy Air Defenses (SEAD) platforms.[69]
The Rafale's ground attack capability is heavily reliant upon sensory targeting pods,[70] such as Thales Optronics's Reco New Generation/Areos reconnaissance pod and Damocles electro-optical/laser designation pod.[64] Together, these systems provide targeting information, enable tactical reconnaissance missions, and are integrated with the Rafale's IMA architecture to provide analysed data feeds to friendly units and ground stations, as well as to the pilot.[71] Damocles provides targeting information to the various armaments carried by the Rafale and is directly integrated with the Rafale's VHF/UHF secure radio to communicate target information with other aircraft; it also perform other key functions such as aerial optical surveillance and is integrated with the navigation system as a FLIR.[71]
An upgraded pod, designated as Damocles XF, features additional sensors and added the ability to transmit live video feeds.[72] Thale's Areos reconnaissance pod is an all-weather, night-and-day-capable reconnaissance system employed on the Rafale, and provides a significantly improved reconnaissance capability over preceding platforms.[73][N 5] Areos has been designed to perform reconnaissance under various mission profiles and condition, using multiple day/night sensors and its own independent communications datalinks.[71]

Radar and sensors

The Rafale is typically outfitted with the Thales RBE2 passive electronically scanned multi-mode radar. Thales claims to have achieved unprecedented levels of situational awareness through the earlier detection and tracking of multiple air targets for close combat and long-range interception, as well as real-time generation of three-dimensional maps for terrain-following and the real-time generation of high resolution ground maps for navigation and targeting.[74] In early 1994, it was reported that technical difficulties with the radar had delayed the Rafale's development by six months.[53] In September 2006, Flight International reported the Rafale's unit cost had significantly rose due to additional development work to improve the RBE2's detection range.[75]
The OSF is visible upfront, below the cockpit and to the side of the refueling boom
The RBE2 AA active electronically scanned array (AESA) radar is planned to replace the existing passively scanned RBE2. The RBE2 AA is reported to deliver a greater detection range, improved reliability and reduced maintenance demands over the preceding radar.[76] A Rafale demonstrator began test flights in 2002 and has totaled 100 flight hours as of December 2011. By December 2009, production of the pre-series RBE2 AA radars was underway.[73] In early October 2012, the first Rafale equipped with an RBE2 AA radar arrived at Mont-de-Marsan Air Base for operational service; the development was described by Thales and Dassault as "on time and on budget".[76] By early 2014, the first Air Force front-line squadron will receive Rafales equipped with the AESA radar; the French Navy is slated to receive AESA-equipped Rafales from 2013.[77]
To enable the Rafale to perform in the air supremacy role, it includes several passive sensor systems. The front-sector electro-optical system or Optronique Secteur Frontal (OSF), developed by Thales, is completely integrated within the aircraft and can operate both in the visible and infrared wavelengths.[78] The OSF enables the deployment of infrared missiles such as the MICA at beyond visual range distances; it can also be used for detecting and identifying airborne targets, as well as those on the ground and at sea.[79] Dassault describes the OSF as being immune to jamming and capable of providing covert long-range survelliance.[74] In 2012, an improved version of the OSF entered into operational use on the Rafale.[76]

Armaments and standards

Initial deliveries of the Rafale M were to the F1 ("France 1") standard, these had been equipped for the air-to-air interceptor combat duties, but lacked any armaments for air-to-ground operations.[80] Later deliveries were to the "F2" standard, which added the capability for conducting both air-to-ground and reconnaissance operations; the first F2 standard Rafale M was delivered to the French Navy in May 2006.[81] The Rafale M is the only fixed-wing combat aircraft flown by the Aviation Navale, and plans are to upgrade all airframes to the "F3" standard, with terrain-following 3D radar and nuclear capability, from early in the decade following 2010.[82] Starting in 2008 onwards, Rafale deliveries have been to the F3 standard, it has been reported that all aircraft built to the earlier F1 and F2 standards are to be upgraded to become F3s.[55]
Weapons of the Rafale
F3 standard Rafales are capable of undertaking many different mission roles with a range of equipment: air defence/superiority missions with Mica IR and EM air-to-air missiles, precision ground attacks typically using SCALP EG cruise missiles and AASM Hammer air-to-surface armaments, anti-shipping using the AM39 Exocet sea-skimming missile, reconnaissance via a combination of onboard and external pod-based sensor equipment, and nuclear deterrence operations when armed with ASMP-A missiles.[83] In 2010, France ordered 200 MBDA Meteor beyond visual range missiles, greatly increasing the distance at which the Rafale can engage aerial targets.[4][84]
For compatibility with armaments of varing types and origins, the Rafale's onboard store management system is Mil-Std-1760 compliant, enabling customers to choose to readily incorporate many of their existing weapons and equipment.[50] The Rafale is typically outfitted with 14 hard points, five of which are suitable for heavy armaments or equipment such as auxiliary fuel tanks, and has a maximum external load capacity of nine tons. In addition to the above equipment, the Rafale can be outfitted with a range of laser-guided bombs and ground-attack munitions; all versions of the Rafale also carry the 30 mm GIAT 30 DEFA cannon.[50] According to Dassault, the Rafale's onboard mission systems enable ground attack and air-to-air combat operations to be carried out within a single sortie, with many functions capable of simultaneous execution in conjunction with another, increasing survivability and versatility.[50]

Engines

Main article: Snecma M88
Closeup of the rear of the airframe and the two engine nozzles
The Rafale is fitted with the Snecma M88 engine, capable of providing up to 50 kN (11,250 lbf) of dry thrust and 75 kN (16,900 lbf) with afterburners. The engines feature several advances, including a non-polluting combustion chamber, single-crystal turbine blades and powder metallurgy disks, and technology to reduce electromagnetic and infrared signatures; Dassault describe the engine as providing "exceptional controllability, especially during acceleration".[50] The M-88 enable the Rafale to supercruise at speeds of up to Mach 1.4 while carrying a loadout of six MBDA MICA air-to-air missiles.[85][86]
In 1996, production of the M88-2 engine began and the first production engine was developed within that year.[87] Due to delays in engine production, some of the early Rafales were temporarily powered by the General Electric F404 engine.[88] In May 2010, a Rafale flew for the first time with the M88-4E engine, an upgraded variant with greater thrust and lower maintenance requirements than the preceding M88-2.[89] The engine is of a modular design for ease of construction and maintenance; it also has enabled older engines to be retrofitted with improved subsections upon availability, such as existing M88-2s being upgraded to M88-4E standard.[87] There has been considerable interest in improved M88 engines by potential export customers, such as the United Arab Emirates.[90] As of 2007, a thrust vectoring variant of the engine designated as M88-3D was also under development.


Variants

Rafale B/C and M
Rafale A
Technology demonstrator, first flying in 1986.
Rafale D
Dassault used this designation (D for "discret") in the early 1990s to emphasise the new semi-stealthy design features.
Rafale B
Two-seater version for the French Air Force
Rafale C
Single-seat version for the French Air Force.
Rafale M
Carrier-borne version for the Aéronavale (French Navy), which entered service in 2002. The Rafale M weighs about 500 kg (1,100 lb) more than the Rafale C. For carrier operations, the M model has a strengthened airframe, longer nose gear leg to provide a more nose-up attitude, larger tailhook between the engines, and a built-in boarding ladder.
Rafale N
Originally called the Rafale BM, was a planned two-seater version for the Aéronavale (French Navy). Budget constraints and training costs have been cited as grounds for its cancellation.
Rafale R
Proposed reconnaissance-oriented variant.[52]




General characteristics
  • Crew: 1–2
  • Length: 15.27 m (50.1 ft)
  • Wingspan: 10.80 m (35.4 ft)
  • Height: 5.34 m (17.5 ft)
  • Wing area: 45.7 m² (492 ft²)
  • Empty weight:
    • C: 9,500 kilograms (21,000 lb)
    • B: 9,770 kilograms (21,500 lb)
    • M: 10,196 kilograms (22,480 lb[175])
  • Loaded weight: 14,016 kg (30,900 lb)
  • Max. takeoff weight: 24,500 kg (C/D), 22,200 kg (M) (54,000 lb)
  • Powerplant: 2 × Snecma M88-2 turbofans
    • Dry thrust: 50.04 kN (11,250 lbf) each
    • Thrust with afterburner: 75.62 kN (17,000 lbf) each
  • Fuel capacity: 4,700 kg (10,000 lb) internal
Performance
Armament
Avionics



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