The impressive Su-35S is the latest incarnation of the T-10 family of fighter aircraft. It would be fair to describe this aircraft as the pinnacle of current conventional fighter design, blending a superb basic aerodynamic design with advanced engine, flight control and avionic technology.
The designation Su-35 has been applied to two basic Flanker configurations since 1991. The first aircraft to carry the Su-35 label was the early 1990s digital T-10M/Su-27M Flanker E, powered by the Al-31FM engine and fitted with the Tikhomirov NIIP N011 planar array radar. Export configurations were designated Su-35. This aircraft was used as the basis of the Su-37 Flanker F advanced technology demonstrator, often labelled as the Super Flanker. The Su-37 was used as a platform to prove a modern glass cockpit, the N011M BARS PESA radar, thrust vector control engines and a quadruplex digital flgiht control system with an electrical sidestick controller. Much of the technology proven on the Su-37 migrated into the Su-30MKI/MKM Flanker H exported to Asia.
The current Su-35S, ordered in 2009 for the Russian Air Force, was the result of a series of design studies for a deep modernisation of the Su-27M design. This was actually more of a deep re-engineering of the basic design in the manner of the F-15E against the F-15C performed during the 1980s. The new Su-35BM retained the basic aerodynamic design and much of the structural design of the late model Flanker, but sees important aerodynamic enhancements and completely new engines and digital systems.
Notable changes include the removal of the dorsal speedbrake, additional internal fuel, and plumbing for AAR and external drop tanks. A quadruplex digital flight control system is used. The Item 117S engines, which use key components of the Al-41F supercruising core, are employed. The Su-35S is the first non-US fighter with substantial sustained supersonic cruise capability, which provides this aircraft with an enormous energy advantage against conventional opponents in most regimes of air combat.
The avionic suite is fully digital. The centrepiece is the Tikhomirov NIIP N035 Irbis E (Snow Leopard) 20 kiloWatt class steerable hybrid ESA radar. A new glass cockpit is employed, using large area displays. The Khibiny electronic warfare suite is employed, with new wingtip DRFM technology jamming pods.
The aircraft is intended to carry the full spectrum of Russian air to air and air to ground guided weapons.
Given the large performance margin in the Su-35S design, it has considerable long term growth potential. It is likely that it will become the platform for the first Russian built large aperture AESA radars, as well as the R-172 very long range AAM.
In strategic terms the Su-35S is a game changer, as it robustly outclasses all competing Western fighter aircraft other than the F-22A Raptor. Deployed in significant numbers it is capable of changing the balance of power in any region where this occurs. This reality does not appear to be widely understood in most Western air forces, or DoD bureaucracies. |
KnAAPO Su-35 Description [Cited] | Single-seat multi-functional super-maneuverable fighter. New engines with all-aspect TVC nozzle and thrust of 14,500 kg are installed on the air-craft. The inner fuel capacity is increased and the aircraft can carry two external fuel tanks with 2,000 liters capacity. The aircraft is equipped with the new Integrated digital aircraft con-trol system (ICS) carried out the functions of Fly-by-wire and Automatic Flight Control systems, Signal limiting system and Air Data System, and Landing Gear Wheel Braking Control System. The aircraft boasts of new avionics with the use of multiplex communication links, and phased array radar. Wide-angle colour head-up display and two large-format colour MFDs form the aircraft indication system. Due to the cockpit lightening equipment the pilot can use night vision goggle. The aircraft is equipped with the auxiliary power unit providing for the cockpit and aircraft equipment power supply and conditioning while ground maintenancte without ground support means application.
The Su-35 aircraft is designed by “Sukhoi Design Bureau”, but its production is mastered at the Komsomolsk-on-Amur Aircraft Production Association named after Gagarin.
The Su-35 merits are the following: - Supreme flight performance, superagility mode
- Long range information targeting system
- Advanced jam-resistant secure communication system providing data link between the aircraft and ground-based command centers
- High-performance air-to-air and air-to-surface long- medium-, and short-range guided weapon mounted externally on 14 hardpoints
- High-performance EW and ECM systems
- Electronic reconnaissance system
- Design features aimed at stealth capability enhancement
- New indication and signaling system with Multifunctional Display, notable for its enlarged capacity and advanced quality of provided data
- In-flight refueling system.
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KnAAPO Specifications [Cited] | Su-35 basic specifications | | Take-off weight, kg: | | | normal (2 x RVV-AE + 2 x R-73E) | 25,300 | | maximal | 34,500 | | By-pass turbojet engine: | | | number, pcs | 2 | | thrust, kg | 14,500 | | Maximal fuel load in internal fuel tanks, kg | 11,500 | | Maximal combat load, kg | 8,000 | | Ceiling, km | 18 | | Range with maximal fuel load, km: | | | Н=0, М=0.7 | 1,580 | | Нcr, М cr | 3,600 | | Ferry range: | 4,500 | | with 2 х PTB-2000 external tanks, km | | | Acceleration time at H=1,000 m and fuel bingo 50% of the standard capacity, sec: | | | from 600 km/h to 1,100 km/h | 13.8 | | from 1,100 km/h to 1,300 km/h | 8.0 | | Maximal rate of climb (Н=1,000 m), m/sec | >280 | | Maximal airspeed : | | | H=200 m, km/h | 1,400 | | H=11,000 m , M | 2.25 | | Maximal g-load, g | 9 | | Take-off run in "full afterburning" mode with standard take-off weight, m | 400-450 | | Landing roll on concrete runway in braking mode with brake parachute and wheel brakes use, with standard landing weight, m | 650 | | Length, m | 21.9 | | Height, m | 5.9 | | Wing span, m | 15.3 | |
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