Indian military planners have been working on the Advanced Medium Combat Aircraft (AMCA) to create a stealthy, multirole, air dominance fighter. The F-22, a fighter aircraft of the fifth generation, served as an inspiration. The Aeronautical Development Agency, an organization under DRDO, is responsible for its design. It will be produced as joint venture between public-private i:e; DRDO, hindustan Aeronautics limited and an Indian private company.

AMCA will be a single-seat, twin-engine aircraft. The AMCA Mark 1 will come equipped with 5.5 generation technologies and Mark 2 will have the incremental 6th generation technology upgrades. The AMCA which is intended to perform a multitude of missions including Air supremacy, Ground-Strike, Suppression of Enemy Air Defenses (SEAD) and Electronic Warfare (EW) missions would be a potent replacement for the Sukhoi Su-30MKI air superiority fighter, which forms the backbone of the IAF fighter fleet. The AMCA design is optimised for low radar cross section and supercruise capability.

Design
The AMCA is designed with shoulder mounted diamond shaped trapezoidal wings, a profile with substantial area-ruling to reduce drag at transonic speeds, and a stabilator V-tail with large fuselage mounted Tail-wing. Flight control surfaces include leading and trailing-edge flaps, ailerons, rudders on the canted vertical stabilizers, and all-moving tailplanes; these surfaces also serve as Air brakes.

AMCA fifth generation fighter aircraft

The AMCA is designed to produce a very small radar cross-section, to accomplish this it features “S-shaped” air-intakes to reduce radar exposure to the fan blade which increases stealth, uses an internal weapoŋs bay and features the use of composites and other materials. The flight control surfaces are controlled by a central management computer system. The AMCA will have some sixth generation characteristics such as an optionally manned, directed energy weapoŋs, capable of controlling UCAVs and swarm drones.

Stealth & radar signature

The AMCA design has inherent radar stealth, achieved through platform edge alignment and serration, body conformal antenna and low intercept radar, Diverterless supersonic inlet (DSI) with serpentine ducts which conceal engine fan blades, internal weapoŋs bay and extensive use of composites in airframe.

It will be a 25-tonne aircraft with an internal payload of 1,500 kg, an exterior payload of 5,500 kg, and an internal fuel capacity of 6,500 kg. It will have a max. Speed of 2600km/h.

Prototypes and Trials
The ADA has planned a 10-year roadmap for making the first five prototypes and for flight testing. The five prototypes will cost close to Rs900 crore each. But, later on in the production process, the cost is expected to reduce drastically.

AMCA scale model during Aro India 2021

As per defence scientists, prototypes always cost more because they are also test vehicles. However, since the AMCA is largely indigenous, it would be cheaper than an import. The basic aircraft (excluding the cost of weapoŋs, maintenance and upgrades) may be around 50 per cent to 60 per cent cheaper. The lifecycle cost will also be around 70 per cent cheaper.

Apart from the engines for the Mark-1, the ejection seats are also imported. All sensors, avionics and flight control systems are indigenous. That means that over 70 per cent of the aircraft is indigenous. Scientists do no want to scale up the indigenous content further because it would not be economically viable. Once the Mark-2 engines are developed, the indigenous content will rise to 90 per cent.

ADA plans to roll out the first AMCA in 2026 followed by four more AMCA that will cost 900 crores each initially, but the prices will fall when it enters full-scale production but it is still cheaper than Rafale which was brought for Rs 920 Crores each.

production of the Mark-1 jets slated to begin in 2030-31 under the “aggressive timelines” set by DRDO and its Aeronautical Development Agency (ADA). However, the development agency anticipates that after four years of flight testing, the time frame can be cut to 2028-29.

According to reports, the Indian Air Force has committed to procuring 40 AMCA Mk-1 fighters and at least 100 Mk-2 derivatives, as well as unmanned variants. The Advanced Medium Combat Aircraft (AMCA) would be stealthy and capable of “supercruise.”

Avionics & Engine
The agreement calls for India and France to collaborate on the development of a 110 KN (Kilonewton) engine for India’s fifth-generation fighter jet. The engine is expected to power the Mk2 — the AMCA’s second version, with the first powered by the GE414 engine.

AMCA will have advanced situational awareness. This is achieved through multi-spectral sensors placed across the airframe and allows the pilot to have a 360-degree visual without having to manoeuvre the fighter,” said Fairoza. This, in turn, facilitates “First Look, First Kill”—the AMCA pilot would detect and destroy the target without the enemy ever knowing about the threat. The cockpit will have a 3D audio warning system and the facility for voice-activated commands, reducing the workload of pilots so that they can better focus on missions.

The most important part of the avionics though is an “electronic pilot” feature. Conventionally, a fighter platform requires two pilots. One is a flying pilot and another one is a mission pilot (who directs the flying pilot). This jet will have only a single cockpit accompanied by an electronic pilot.

The AMCA is expected to have distributed passive sensors with Artificial intelligence (AI) assisted multi-sensor data fusion to increase situational awareness and to work in tandem with the advanced electronic warfare (EW) suite onboard AMCA. The AMCA has a distributed processing system employing fast processors and smart subsystems. The AMCA will also have an integrated vehicle health monitoring system which works on sensor fusion.

AMCA will be equipped with a larger and powerful variant of the Uttam AESA Radar which will use gallium nitride (GaN) technology. It will be mounted on a mechanically steerable mount.

Specification and Armaments
It will be a 25-tonne aircraft with an internal payload of 1,500 kg, an exterior payload of 5,500 kg, and an internal fuel capacity of 6,500 kg. It will have a max. Speed of 2600km/h.

AMCA can bring to the IAF, a proud Neeli explains that the fighter will have a top speed of around 2,600kmph (Mach 2.15) and a combat range of 1,620km. It will be equipped with a 23mm cannon and 14 hard points to carry weaponry weighing 6,500kg. The fuel capacity is also 6,500kg; the LCA Tejas only carries 2,400kg of fuel.

The aircraft is designed to tackle both air-to-air and air-to-ground operations with equal lethality. The AMCA will be fitted with Brahmos-NG (next generation) air-to-ground missiles, Astra air-to-air missiles, anti-tank missiles, Rudram anti-radiation missiles, laser-guided bombs and precision munitions. The avionics for pilot’s communication and sensors, radars and infra-red search-and-tracking features make the fighter most advanced in Asia.

AMCA can perform a deep-strike without ground support. Even the most advanced fighter jets, like the Dassault Rafale, needs the support of another aircraft or ground support.” She said the F-35 was the only platform that had similar capability.

India could become the fourth country to field an indigenously developed stealth fighter aircraft with the AMCA. However, Turkey is also seeking its fifth-generation aircraft, the TF-X, with a launch date that is nearly identical to that of the Indian AMCA.

The advancement of the AMCA program would be a significant step forward for India, which is facing a deficit of combat aircraft in comparison to the required strength, as well as the belligerent neighbors on its borders.