Specifications of SU - 57 Sukhoi PAK-FA Fighter jet

Sukhoi PAK-FA abbreviated in Russian language as Prospective Airborne Complex of Front-line Aviation is a program to develop fifth generation fighter aircraft. The prototype aircraft designated as T 50 which had its first flight on 29 Jan 2010. The Sukhoi Su-57 is the designation for a stealth, single-seat, twin-engine multirole fifth-generation jet fighter being developed for air superiority and attack operations. The aircraft is the product of the PAK.,

fifth-generation fighter programme of the Russian Air Force. Sukhoi's internal name for the aircraft is T-50. The Su-57 is planned to be the first aircraft in Russian military service to use stealth technology. The aircraft is being co-developed in collaboration with Hindustan Aeronautics Limited HAL with 50% sharing of fundings. The HAL would develop an Indian specific variant named Fifth Generation Fighter Aircraft (FGFA) whose final contract is expected to be signed at the mid of 2017 after which aircraft will be developed within 7 years. The fighter is designed to have supercruise, super maneuverability, stealth, and advanced avionics to overcome the prior generation fighter aircraft as well as ground and naval defences.The Su-57 is intended to succeed the MiG-29 and Su-27 in the Russian Air Force. The FGFA will be tailored for requirements of Indian Air Force according to Indian Military doctrine. While the aircraft is expected to be exported in large numbers in Asia Pacific.

Specifications

S.NO	TYPES	PARAMETERS
1	Role	Stealth air superiority fighter
2	National origin	Russia
3	Manufacturer	Sukhoi
4	Primary users	Russian Air Force
5	Variants	Sukhoi/HAL FGFA
6	Unit cost	US$50 million
7	Length	19.8m
8	Wingspan	13.95m
9	Hight	4.74m
10	Wing area	78.8m2
11	Empty weight	18 ton (18,000 kg)
12	Loaded weight	25 ton  (25,000 kg)
13	Max. takeoff weight	35 ton (35,000 kg)
14	Fuel capacity	10.3 ton (10,300kg)
15	Powerplant	2 × Saturn AL-41F1 for initial production, izdeliye 30 for later production turbofans
16	Dry thrust	93.1 kN / 107 each
17	Maximum speed	Mach 2 At altitude
18	Range	3,500 km subsonic 1,500 km supersonic,3,600 km, 4,500 km from 2 outboard fuel tank
19	Thrust/weight	AL-41F1: 1.02 (1.19 at typical mission weight)
20	Service ceiling	20,000m
21	Hardpoints	12 (6 × internal, 6 × external)

 It was reported at Paris Air Show 2017 that the name FGFA is now completely replaced and the aircraft now be called Prospective Multirole Fighter PMF. The prototypes and initial production batch are to be delivered with a highly upgraded variant of the Lyulka AL-31 engine used by the Su-27 family as an interim powerplant while an advanced clean-sheet design engine, the Saturn izdeliye 30, is currently under development. The aircraft is expected to have a service life of up to 35 years. Its first flight took place on 29 January 2010. The Sukhoi Aviation Corporation claims it to be better than any other fifth generation aircraft currently available for export. It will be the first aircraft in both Russian and Indian service to use stealth technology by which they could evade detection by enemy radar to some extent. It will replace Su 27 and MiG 29 in Russian Service and MiG 21 in Indian service.

Stealth technology

Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures,[1] which covers a range of techniques used to make personnel, aircraft, ships, submarines, missiles, satellites and ground vehicles less visible (ideally invisible) to radar, infrared,[2] sonar and other detection methods. It corresponds to military camouflage for these parts of the electromagnetic spectrum (i.e., multi-spectral camouflage). The Su-57 is planned to be the first operational aircraft in Russian Air Force service to use stealth technology. Similar to other stealth fighters such as the F-22, the airframe incorporates planform edge alignment to reduce its radar cross-section (RCS); the leading and trailing edges of the wings and control surfaces and the serrated edges of skin panels are carefully angled to reduce the number of directions the radar waves can be reflected.




 Weapons are carried internally in weapons bays within the airframe and antennas are recessed from the surface of the skin to preserve the aircraft's stealthy shape. The infrared search-and-track sensor housing is turned backwards when not in use and its rear is treated with radar-absorbent material (RAM) to reduce its radar return. To mask the significant RCS contribution of the engine face, the partial serpentine inlet obscures most of the engine's fan and inlet guide-vanes (IGV). The production aircraft incorporates radar-absorbing materials on the walls of the air ducts and radar blockers similar in principle to those used on the F/A-18E/F in front of the engine fan to hide it from all angles. The fuselage of the aircraft is to also use RAM to absorb radar emissions and reduce the reflection back to the source. The aircraft canopy is made of composite material and 70-90 nm thick metal oxide layers with enhanced radar wave absorbing to minimize the radar return of the cockpit by 30% and protect the pilot from the impact of ultraviolet and thermal radiation.

Engines

Pre-production T-50 and initial production batches of the Su-57 will use interim engines, a pair of NPO Saturn izdeliye 117, or AL-41F1. Closely related to the Saturn 117S engine used by the Su-35S, the 117 engine is a highly improved and uprated variant of the AL-31 that powers the Su-27 family of aircraft. The 117 engine produces 93.1 kN of dry thrust, 147.1 kN of thrust in afterburner, and has a thrust to weight ratio of 10.5:1. The engines have full authority digital engine control (FADEC) and are integrated into the flight control system to facilitate maneuverability and handling.

Avionics

1. Sh121 multifunctional integrated radio electronic system (MIRES)
2. Byelka radar (400 km, 60 targets of 16 hit)[234][235]
3. N036-1-01: Frontal X-band active electronically scanned array (AESA) radar
4. N036B-1-01: Cheek X-band AESA radars for increased angular coverage

Cockpit

The Su-57 has a glass cockpit with two 38 cm main multi-functional LCD displays similar to the arrangement of the Su-35S. Positioned around the cockpit are three smaller control panel displays. The cockpit has a wide-angle (30° by 22°) head-up display . Primary controls are the joystick and a pair of throttles. The aircraft uses a two-piece canopy, with the aft section sliding forward and locking into place. The canopy is treated with special coatings to increase the aircraft's stealth

Missiles

• Air-to-air missiles

1. 4 × RVV-MD
2. 2 × R-73
3. R-37M

• Air-to-surface missiles

1. 4 × Kh-38ME

• Anti-ship missiles

1. 2 × Kh-35E,

• Anti-radiation missiles

1. 4 × Kh-58UShKE
2. 250, 500, 1500 kg guided bombs
3. X-59MK2
4. X-58UHK
5. Anti-tank "Drill"[233] 500 kg cluster-bomb + active homing

• Avionics

1. Sh121 multifunctional integrated radio electronic system (MIRES)

• Byelka radar (400 km, 60 targets of 16 hit)

1. N036-1-01: Frontal X-band active electronically scanned array (AESA) radar
2. N036B-1-01: Cheek X-band AESA radars for increased angular coverage
3. N036L-1-01: Slat L-band arrays for IFF

• L402 Himalayas electronic countermeasure suite

1. 101KS Atoll electro-optical targeting system

• 101KS-O: Laser Directional Infrared Counter Measures
• 101KS-V: Infra-red search and track
• 101KS-U: Ultraviolet missile approach warning system
• 101KS-N: Targeting pod
• 101KS-P: thermal imager for low altitude flying and night landing