TOP 25 things u need to know about Tejas ................
1) Tejas is a relaxed static stability design, it is equipped with a quadruplex digital fly-by-wire flight control system to ease pilot burden handling.
2) DRDO is developing four versions of the LCA; namely LCA Air Force, LCA Air Force Trainer, LCA Navy and LCA Navy Trainer.
3) Tejas has successfully completed more than 2,600 flights and has participated in Hot Weather, Cold Weather, Iron Fist and Weapon Trials comprising of Bomb releases both in Computer Calculated Release Point (CCRP - Uses GPS for target acquisition and termination) and Continuous Computed Impact Point (CCIP - Uses Radar for target termination) modes.
4) In December 2014 LCA (Navy) Prototype 1 (NP1), designed to operate from the decks of air-craft carriers, successfully conducted a take off procedure from the Ski-Jump facility of Shore Based Test Facility (SBTF) at INS Hansa in Goa.
5) The LCA is constructed of aluminium-lithium alloys, carbon-fibre composites (C-FC), and titanium-alloy steels.
6) The digital Fly-by-Wire (FBW) system of the Tejas employs a powerful digital flight control computer (DFCC) made by Aeronautical Development Establishment (ADE) comprising four computing channels, each with its own independent power supply and all housed in a single LRU.
7) Tejas can fly at a speed of more than 1,350 km per hour and can be compared to some of the world's best fighter aircraft -- the Mirage 2000, F-16 and Gripen fighter jets.
8) The Tejas is equipped with both GPS and a ring laser gyro based inertial navigation system; for flying in poor conditions, an Instrument Landing System (ILS) and a ground proximity warning system based on the Terrain Referenced Navigation (TRN) system is also employed.
9) It is equipped with an advanced pulse Doppler, multimode planar array fire-control radar, it is suitable for air-to-air and air-to-surface modes.
10) The ADA Systems Directorate's Integrated Digital Avionics Suite (IDAS) integrates the flight controls, environmental controls, aircraft utilities systems management, stores management system (SMS), etc. on three 1553B buses by a centralised 32-bit, high-throughput mission computer.
11) The LCA also has secure and state-of-the-art advanced electronic warfare suite (EW suite), known as Mayavi, which includes a radar warning receiver (RWR), Missile Approach Warning (MAW) and a Laser warning receiver (LWR) system, Infrared & Ultraviolet Missile warning sensors, self-protection jammer, chaff, jaff and flares dispenser, an electronic countermeasures (ECM) suite and a towed radar decoy (TRD).
12) R73E missile successful launching in MMR and Helmet Mounted Display Guided Modes.
13) The Tejas Mark 2 will feature a more powerful engine the General Electric F414-GE-INS6 Turbofan which develops 98 kN of thrust, the engine will also have refined aerodynamics.
14) Stick Bombing, separation trials of emergency jettison of multiple stores and Drop Tanks were conducted at various locations across India.
15) Other notable milestones achieved are Spool Down Engine relight, Envelope expansion up to 24 degrees Angle of Attack, operational readiness platform scramble, Laser guided missions with Litening POD, Fuel System, Brake Management System and General Systems performance.
16) Multi-role capability demonstration by simultaneous release of Laser Guided Bombs, Chaff & Flare dispensation and firing of R73E missile within a span of 100 secs. Other important achievements are night flying and wake penetration.
17) Advanced Composites development of engine parts, Bypass Duct, Nozzle Flap, Bullet Nose Cone, curing achieved in both autoclave and press processes, indigenous resin development, developed glass transition temperature in excess of 300ºc.
18) Indigenous aircraft paint system, characterization to DEF STAN 80-216, BS 2x 33 & 34 and application process fine tuned to Tejas. Indigenously developed single trolley multiple operations, shorter flight readiness cycle time, loading trolleys for Drop Tanks, Weapons, Digital Flight Control Computer, Battery, Jet Fuel Starter, Landing Gears etc.
19) The Tejas has a night vision goggles (NVG)-compatible "glass cockpit" that is dominated by an CSIR-CSIO domestically developed head-up display (HUD).
20) Realization of Product Life Cycle Management (PLM) - Implementation for all projects, complete product data management across work centers, pipelines and electrical looms data management, synchronization of data, query workflows from design through manufacturing, digital manufacturing and ERP interface, online design query management for faster disposition, real time status dash boards for effective tracking.
21) Production Optimization - Introduction of laser tracker, high speed machining, automated drilling and riveting technologies, application of Design for Manufacture and Assembly (DFMA) concepts, production standard drawings, build quality improvement and product cycle time reduction.
22) Strength Test of Leading Edge Vortex Controller (LEVCON) for LCA Navy, successful flight trials with indigenously designed and qualified composite drop tanks, flight flutter tests for operational clean and heavy stores flight envelope expansion.
23) Water Tightness Tests, Lightning Test Facility and configured and commissioned Automatic Cable Harness Tester.
24) Production standard Digital Mock up (DMu) including system pipelines and electrical looms, capabilities like Geometric Dimensioning and Tolerancing (GD&T), analysis and assembly sequencing introduced.
25) Qualification of indigenous autoclave consumables like pressure sensitive tapes, vacuum bag sealants and release films for Carbon/Epoxy system.
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