HAL TEJAS LIGHT COMBACT AIRCRAFT

SEMINAR BY

T.MOHAN SAI TEJA

CONTENT OF THE SEMINAR

▪ INTRODUCTION ▪ DEVELOPMENT▪ LCA PROGRAMME▪ PROTOTYPES AND TESTING▪ DESIGN▪ AIRFRAME▪ AVIONICS▪ PROPULSION▪ CONCLUSION

INTRODUCTION▪ When there is no fighter crafts in the wing section of the Indian

air force the HAL TEJA’ S stood on the side of the combat.▪ In this presentation the complete specifications have been

evaluated and described as per the knowledge.▪ The HAL Tejas is an Indian single-seat, single-jet engine,

multi-role light fighter designed by the Aeronautical Development Agency (ADA) and Hindustan Aeronautics Limited (HAL) for the Indian Air Force and Navy.

▪ The main objective of this presentation is to replace the ▪ It came from the Light Combat Aircraft (LCA) programme,

which began in the 1980s to replace India's ageing MiG-21 fighters. LCA was officially named "Tejas" in 2003, meaning "Radiant" in Sanskrit by the then Prime Minister Shri Atal Bihari Vajpayee.

SPECIFICATIONS▪ ROLE: MULTI ROLE▪ WING CONFIGURATION: PURE DELTA WING CONFIGURATION▪ SWEEP ANLE: 50 DEGREES FROM WING ROOT : 62.5 DEGREES FROM OUTER WING LEADING EDGE : 4 DEGREES TRAILING EDGE FORWORD SWEEP▪ CONTROL SYSTEM:DIGITAL FLY BY WIRE SYSTEM▪ STABILITY : RELAXED STATIC STABILITY ▪ RADAR : MULTI RADOR SYSTEM▪ AVIONIC SYSTEM: DIGITAL AVIONIC SYSTEM

ROLLING ACTION OF LCA TEJAS

LCA PROGRAMME▪ KOTA HARINARAYAN WAS THE ORIGINAL PROGRAMME DIRECTOR AND CHIEF

DESIGNER .▪ IN 1969,THE INDIAN GOVERNMENT ACCEPTED THE RECOMMMEDATIONS BY

THE HAL SHOULD DESIGN A FIGHTER AIRCRAFT AROUND A PROVEN ENGINE.▪ THE LCA PROGRAMME IS AIMED FOR TWO PURPOSES ONE IS TO REPLACE

THE INDIAS AGEING MIG -21 FIGHTERCRAFTS ▪ SECONDLY FOR THE ACROSS THE BOARD ADVANCEMENT OF THE

AEROSPACE INDUSTRY IN INDIA .▪ THE GOVERNMENT SELF RELIANCE GOALS FOR THE LCA INCLUDE THREE

MOST SOPHISTICATED AND CHALLENGING SYSTEMS FLY BY WIRE CONCEPTAFTERBURNER ENGINE PULSE DOPPLER RADAR.

AIRFARME

▪ LCA IS CONSTRUCTED BY LITHIUM ALLUMINUM ALLOYS, CARBON FIBER COMPOSITES AND TITANIUM ALLOY STEELS

▪ CFC MATERIAL– FOR DOORS AND SKINS,IN WING SECTION(SPARS,RIBS,SKIN). IT CONTAINS 45% OF WEIGHT OF THE TOTAL AIRCRAFT.

▪ LANDING GEAR DOORS AND AIR BRAKES AND ELEVONS AND FOR TAILFIN RUDDERS CFC IS USED.

▪ The wing and fin of the compound-delta aircraft are of carbon-fiber-reinforced polymer, and were designed to provide a minimum weight structure and to serve as integral fuel tanks

STRUCTURAL COMPOSITION OF TEJAS

COCKPIT DESIGN

▪ IT HAS A NIGHT VISION GOGGLE GLASS COCKPIT▪ GET YOU HOME PANNEL IN CASE OF ANY EMERGENCY SITUATION▪ CISR-CISO DOMESTICALLY DEVELOPED HEAD UP DISPLAY ▪ MULTIFUNCTIONAL KEY BOARD FOR BASIC FLIGHT AND TACTIC DATA▪ THREE 5*5 INCH DISPLAY▪ ELBIT FURNISHED DASH HELMET-MOUNTED DISPLAY▪ HANDS ON THROTTLE AND STICK(HOTAS) FOR WEAPON AIMING

INFORMATION ▪ OXYGEN GENERATING SYSTEMS FOR LONGER MISSIONS

COCKPIT OF TEJAS LCA

EQUIPEMENT SYSTEMS IN COCKPIT

▪ GPS AND RING LASER GYROSCOPE BASED INERTIAL NAVIGATION SYSTEM ▪ AN INSTRUMENT LANDING SYSTEM FOR POOR FLYING CONDITIONS(ILS).▪ GROUND PROXIMITY WARNING SYSTEM BASED ON TERRIAN

REFERENCED NAVIGATION SYSYTEM (TNS) IS EQUIPED▪ IFF TRANSPONDE/VHF AND UHF RADIOS FOR JAM –RESISTENT

COMMUNICATION SYSTEM.▪ AIR TO AIR AND AIR TO GROUND DATALINKS▪ MOVING TARGET INDIACATION (MTI)▪ INTEGRATED DIGITAL AVIONIC SUITE FOR FLIGHT

CONTROLS ,ENVIRONMENTAL CONTROLS AND STORAGE MANAGEMENT SYSTEM AND AIRCRAFT UTILITIES MANAGEMENT SYSTEM.

NIGHT VISION GLASS COCKPIT

OXYGEN GENERATIG SYSYTEM

Avionics

▪ THE ELECTRONIC WELFARE SIUTE FOR ENHANCE COMBACT SURVIVABILITY IN DEEP PENENTRATION

▪ THE EW SUITE IS DEVELOPED BY DARE WITH SUPPORT FORM DLRL

▪ THIS IS KNOWN AS MAYAVI▪ IT INCLUDES RADAR WARNING RECEIVER AND MISSILE

APPROACH WARNING AND LASER WARNING RECEIVER▪ IT INCLUDES SELF PROTECTION JAMMER▪ IT IS ALSO EQUPED WITH INFRA RED SEARCH AND TRACK

SENSOR TO DETECT AND TRACK THERMAL EMMISIONS

AVIONICS

AVIONICS

MECHANICAL COMPONENTS OF LCA TEJAS

GEAR BOX C-C COMPOSIT FOR AIRBRAKES HEAT

EXCHNAGER

FLIGHT CONTROL▪ RELAXED SATIC STABILITY DESIGN▪ QUARDPLUX DIGITAL FLY BY SYSTEM▪ PURE DELTA WING CONFIGURAION WITH SHOULDER -MOUNTED

WINGS▪ CONTROL SURFACES ARE HYDRAULICALLY ACTUATED▪ WING OUTER LEADING EDGE INCORPORATES THREE SLATS▪ OVER THE INNER WING THERE IS A SLAT TO GENERATE VORTEX LIFT▪ HIGH AOA STABILITY ABOUT 28 DEGREES▪ DIGITAL FLIGHT CONTROL COMPUTER MADE BY ADE▪ DFCC USES 32 BIT PROCESSOR AND ADAPROGRAMMING LANGUAGE

PROPULSION SYSTEM OF TEJA LCA

PROPULSION SYSTEM DEVELOPMENT

▪ Early on, it was decided to equip prototype aircraft with the General Electric F404-GE-F2J3 afterburning turbofan engine

▪ In 1998, after Indian nuclear tests, US sanctions blocked sales of the F404▪ Later it was given to the kaveri development.▪ It fails to supply a engine which can fly at higher altitudes .▪ Later for technical assistance it contacted the French engine company

scecma ▪ Using Snecma's new core, an uprated derivative of the Dassault Rafale's

M88-2 engine, providing 83–85 kilonewtons (kN) of maximum thrust was being considered by DRDO.

▪ In November 2014, the DRDO was submitting documents to cancel development of Kaveri.

DEVELOPMENT OF ENGINE▪ In 2008, it was announced that an in-production power

plant would have to be selected; this was required to be in the 95 to 100 kilo newton (kN) (21,000–23,000 lbf) range to execute combat maneuvers with optimal weapons load.▪ After evaluation and acceptance of technical offers for both

the Eurojet EJ200 and the General Electric F414, the commercial quotes were compared in detail and GE's F414 was declared as the lowest bidder. ▪ The deal covered the purchase of 99 GE F414 engines, an

initial batch will be supplied directly by GE and the remainder to be manufactured in India under a technology transfer arrangement

VARIENTS OF TEJAS LCA

▪ TEJAS TRAINEE VARIENT▪ TECHNOLOGY DEMONISTRATED TD -1 AND TD -2▪ TEJAS NAVAL VARIENT▪ NAVAL PROTOTYPES ▪ NP -1 TWO SEAT NAVAL AIRCRAFT FOR CARRIER OPERATIONS ▪ NP-2 SKY JUMP TAKE OFF AND ARESTED HOOK LANDING▪ PLANNED PRODUCTION VARIENTS ▪ TEJAS MARK 1A▪ TEJAS MK 1 NAVY AND MK 2 NAVY WITH IMPROVED CONDITIONS

NAVAL VARIENT OF LCA TEJAS

COMBACT EQUIPEMENT IN LCA TEJAS

▪ AIR TO AIR MISSILES ( BRAMHOS )▪ AIR TO GROUND MISSILES ( NIRBHAY)▪ ANTI SHIP MISSILES ▪ LASER GUIDED BOMBS▪ CONVENTIONAL BOMBS ▪ DROP TANKS

WEAPONS OF LCA TEJAS

WEAPONS IT CAN CARRY

COCNLUSION

▪ AFTER ALL THE DIFFFICULTIES NOW THE TEJAS LIFT OFF IN TO THE SKY WITH ITS LATEST TECHNICAL SKILLS FOR THE COMBACT

▪ AS THE DESIGN IS DESIGNED IN 1980 THE LATEST MODIFICATIONS MADE LCA TEJAS TO ACQUIRE THE TOP POSITION AS GOOD AERODYNAMICS PERFOMANCE AIRCRAFT

▪ NOW ITS TIME FOR THE LCA TEJAS TO FILL THE GAPS THAT ARE PRESENT IN THE INDAIN AIR FORCE AND NAVY

THANKING YOU………