sukhoi_knaapo su-35bm_su-35-1_su-35s flanker

8/18/11 8:46 PMSukhoi/KnAAPO Su-35BM/Su-35-1/Su-35S Flanker

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Last Updated: Sun Aug 14 02:53:00 UTC 2011

Sukhoi/KnAAPO Su-35BM/Su-35-1/Su-35S Flanker

Technical Report APA-TR-2009-0807

by Dr Carlo Kopp, SMAIAA, MIEEE, PEngAugust, 2009

Text © 2009, Carlo Kopp

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Second prototype of the Su-35S Flanker (KnAAPO image).

BackgroundKnAAPO Su-35 Description [Cited]KnAAPO Specifications [Cited]

Irbis E Antenna Gimbal Demonstration (Sukhoi Su-35BM) MAKS2007 VideoKnAAPO Su-35 Presentation Movie [2009]KnAAPO Su-35 Basic Specifications Movie [2009]Sukhoi Su-35 Manufacturer VideoSukhoi Su-35BM / Su-35 'Deep Modernisation' Manufacturer Video

ResourcesSukhoi/KnAAPO Su-35S Second Prototype

February 2010 APA Analyses JournalAssessing the Sukhoi PAK-FA

Background

The impressive Su-35S is the latest incarnation of the T-10 family of fighter aircraft. It wouldbe fair to describe this aircraft as the pinnacle of current conventional fighter design, blendinga superb basic aerodynamic design with advanced engine, flight control and avionictechnology.

The designation Su-35 has been applied to two basic Flanker configurations since 1991. Thefirst 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-37Flanker F advanced technology demonstrator, often labelled as the Super Flanker. The Su-37was used as a platform to prove a modern glass cockpit, the N011M BARS PESA radar, thrust



was used as a platform to prove a modern glass cockpit, the N011M BARS PESA radar, thrustvector control engines and a quadruplex digital flgiht control system with an electrical sidestickcontroller. Much of the technology proven on the Su-37 migrated into the Su-30MKI/MKMFlanker H exported to Asia.

The current Su-35S, ordered in 2009 for the Russian Air Force, was the result of a series ofdesign studies for a deep modernisation of the Su-27M design. This was actually more of adeep re-engineering of the basic design in the manner of the F-15E against the F-15Cperformed during the 1980s. The new Su-35BM retained the basic aerodynamic design andmuch of the structural design of the late model Flanker, but sees important aerodynamicenhancements and completely new engines and digital systems.

Notable changes include the removal of the dorsal speedbrake, additional internal fuel, andplumbing 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, areemployed. The Su-35S is the first non-US fighter with substantial sustained supersonic cruisecapability, which provides this aircraft with an enormous energy advantage againstconventional opponents in most regimes of air combat.

The avionic suite is fully digital. The centrepiece is the Tikhomirov NIIP N035 Irbis E (SnowLeopard) 20 kiloWatt class steerable hybrid ESA radar. A new glass cockpit is employed, usinglarge area displays. The Khibiny electronic warfare suite is employed, with new wingtip DRFMtechnology jamming pods.

The aircraft is intended to carry the full spectrum of Russian air to air and air to ground guidedweapons.

Given the large performance margin in the Su-35S design, it has considerable long termgrowth potential. It is likely that it will become the platform for the first Russian built largeaperture 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 competingWestern fighter aircraft other than the F-22A Raptor. Deployed in significant numbers it iscapable of changing the balance of power in any region where this occurs. This reality does notappear 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 tankswith 2,000 liters capacity. The aircraft is equipped with the new Integrated digital aircraftcon-trol system (ICS) carried out the functions of Fly-by-wire and Automatic Flight Controlsystems, Signal limiting system and Air Data System, and Landing Gear Wheel BrakingControl System. The aircraft boasts of new avionics with the use of multiplexcommunication links, and phased array radar. Wide-angle colour head-up display and twolarge-format colour MFDs form the aircraft indication system. Due to the cockpit lighteningequipment the pilot can use night vision goggle.

The aircraft is equipped with the auxiliary power unit providing for the cockpit and aircraftequipment power supply and conditioning while ground maintenancte without groundsupport means application.

The Su-35 aircraft is designed by “Sukhoi Design Bureau”, but its production is mastered atthe Komsomolsk-on-Amur Aircraft Production Association named after Gagarin.

The Su-35 merits are the following:



The Su-35 merits are the following:

Supreme flight performance, superagility modeLong range information targeting systemAdvanced jam-resistant secure communication system providing data link betweenthe aircraft and ground-based command centersHigh-performance air-to-air and air-to-surface long- medium-, and short-rangeguided weapon mounted externally on 14 hardpointsHigh-performance EW and ECM systemsElectronic reconnaissance systemDesign features aimed at stealth capability enhancementNew indication and signaling system with Multifunctional Display, notable for itsenlarged capacity and advanced quality of provided dataIn-flight refueling system.

KnAAPO Specifications [Cited]

Su-35 basic specificationsTake-off weight, kg:

normal (2 x RVV-AE + 2 x R-73E)25,300

maximal34,500

By-pass turbojet engine:

number, pcs2

thrust, kg14,500

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=0.71,580

Нcr, М cr3,600

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/h13.8

from 1,100 km/h to 1,300 km/h8.0

Maximal rate of climb (Н=1,000 m), m/sec >280

Maximal airspeed :

H=200 m, km/h1,400

H=11,000 m , M2.25

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 landingweight, m 650

Length, m 21.9

Height, m 5.9

Wing span, m 15.3



The primary BVR weapon to be carried by early production variants of the Su-35S is the KTRVRVV-SD, an extended range evolution of the R-77 / AA-12 Adder similar to the AIM-120D.Note the laser proximity fuse supplanting the radiofrequency fuse (© 2009 Vitaliy V. Kuzmin).



The primary close combat weapon to be carried by early production variants of the Su-35S isthe KTRV RVV-MD, an extended range evolution of the R-73/74 / AA-11 Archer with a jamresistant two colour scanning seeker and a laser proximity fuse. Note the wideband ZnS orZnSe IR window replacing the MgF2 design used in earlier variants (© 2009 Vitaliy V. Kuzmin).



Su-35S cockpit.



The heavyweight high power KNIRTI SAP-14 Support Jammer ECM pod is a Russian analogueto the US ALQ-99E pod carried on the EA-6B Prowler and EA-18G Growler. It was developedfor Flanker family aircraft and is carried on a large centreline pylon. To date little has beendisclosed about this design, but it has been observed on the Su-30MK Flanker G/H and Su-34Fullback. It operates between 1 GHz and 4 GHz (© 2009 Vitaliy V. Kuzmin).

The KNIRTI SAP-518 ECM pod is a new technology replacement for the established L005Sorbstiya series wingtip ECM pods. It operates between 5 GHz and 18 GHz (© 2009 Vitaliy V.Kuzmin).



NIIP Irbis E Prototype (Tikhomirov NIIP).

Irbis E Antenna Gimbal Demonstration (Sukhoi Su-35BM) MAKS 2007 Video



This video shows the agile gimbal arrangement on the Irbis E radar. This allows the phasedarray to be steered to best effect, and retain coverage of the target despite launch aircraftmanoeuvre. The planned auxiliary cheek AESA arrays on the F-22A Raptor are designed toachieve much the same purpose.

KnAAPO Su-35 Presentation Movie [2009]KnAAPO Su-35 Basic Specifications Movie [2009]

Sukhoi Su-35 Manufacturer Video



This video was produced by KnAAPO to provide a quick look at the salient features of the newproduction Su-35-1 Flanker. It is much less detailed than the earlier 'Deep Modernisation'video, but more up to date. Of particular interest are the new design wingtip ECM pods which are much larger than the established KNIRTI Sorbstiya pods, and in geometry mostclosely resemble the new TsNIRTI Digital RF Memory pod design.

Sukhoi Su-35BM / Su-35 'Deep Modernisation' Manufacturer Video



This Russian language video was produced to educate Russian and foreign customersinterested in the Su-35BM upgrade package then being developed for Russian Air Force Su-35Flanker E fighters. New build Su-35BM aircraft such as those being marketed to the PLA-AFand Brazil would be largely identical in configuration. Especially interesting are the animationsof air to air engagements, and the use of the Novator R-100 (KS-172/R-172/K-100/AAM-L)'anti-AWACS' missile against the E-3C AWACS. The CGI shows an R-77 launch, but theRussian language text refers to a 'long range AAM' which is the Novator R-100.

Resources

- Sukhoi/KnAAPO 2009 The Su-35 Fighter Booklet. Zip-archive (15MB).

- Sukhoi/KnAAPO 2009 The Su-35 presentation movie.

- Sukhoi/KnAAPO 2009 The movie about basic specifications of Su-35.

Carlo Kopp Air Power Australia Jan 2007 Sukhoi Flankers - The Shifting Balance of RegionalAir Power

Carlo Kopp Air Power Australia May 2007 Supercruising Flankers?

Carlo Kopp Air Power Australia Sep 2008 Shenyang J-11B Flanker B

Carlo Kopp Air Power Australia Jun 2008 Sukhoi Su-33 and Su-33UB Flanker D: Russia'sMaritime Multirole Fighter

Carlo Kopp Defence Today Jan 2007 F/A-18E/F Super Hornet vs. Sukhoi Flanker

Carlo Kopp APA Analyses APA-2008-04

Assessing Russian Fighter Technology

Carlo Kopp Defence Today Jan 2008 Russian fighters – capability assessment [PDF]

Carlo Kopp Air Power Australia Apr 2008 Flanker Radars in Beyond Visual Range Air Combat

Carlo Kopp Air Power Australia Jul 2008 Phazotron Zhuk AE/ASE: Assessing Russia's FirstAESA

Carlo Kopp Publication Mar 2008 The Russian Philosophy of Beyond Visual Range AirCombat

Carlo Kopp Publication Jul 2007 Hard Kill Counter ISR Programs

Carlo Kopp Air Power Australia Jan 2007 Regional Precision Guided Munitions

Carlo Kopp Submission to theMinister for Defence

May 1998 Replacing the RAAF F/A-18 Hornet Fighter,Strategic, Operational and Technical Issues

Sukhoi/KnAAPO Su-35S Second Prototype

All images © 2009, KnAAPO.



Imagery Sources: KnAAPO, Sukhoi; other Internet sources.

Technical Report APA-TR-2009-0807

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