tejas LIGHT COMBAT AIRCRAFT

1. TEJAS –
Light Combat Aircraft (LCA)
SHIVAJI CHOUDHURY

2. TEJAS
 The Tejas (Sanskrit pronunciation: Sanskrit:
तेजस) is an Indian single-seat, single-jet engine,
multi-role light fighter developed by Hindustan
Aeronautics Limited (HAL).
 It came from the Light Combat Aircraft
(LCA) programme, which began in the 1980s
to replace India's ageing MiG-21 fighters.
 Later, the LCA was officially named "Tejas",
meaning "Radiant" by the then Prime Minister
Atal Biharti Vajpayee.

3. Tejas
 Tejas is a single seated, single engine
light weighted high agility supersonic
fighter aircraft.
 The LCA tejas can speed up to Mech
1.4 and is capable of carrying
assorted weapon load along with
dropping tanks upto four tons.
 It has some of the latest avionics and
digital flight control system.

4. Specific aerodynamic features:
 Tejas is an aerodynamically unstable
tailless compound delta-wing
configuration, optimised primarily for
manoeuvrability and agility.
 Designed to meet the tactical
requirements of a modern air force,
Tejas is a multi-role aircraft capable
of comprehensive air superiority and
air defence roles.

5. TEJAS

6. Tejas –
Special Features
 Performance
 • Max speed Supersonic at all
altitudes
 • Service Ceiling 50,000 ft
 • ‘g’ Limits +8/-3.5
 Dimensions
 • Span 08.20 m
 • Length 13.20 m
 • Height 04.40 m
 Weight
 • Take-off Clean 9800 kg
 • Empty 6560 kg
 • External Stores 3500 kg
 Power Plant
 F404-GE-IN20
 ¤ Compound Delta Planform
 ¤ Relaxed Static Stability
 ¤ Composite Structure
 ¤ Fly-by-wire Flight Control
 ¤ Computer based monitor
and control
 of Electro Mechanical
Systems
 ¤ Glass Cockpit
 ¤ Multi-Mode Radar

7. TEJAS

8. AIRFRAME
 The LCA is constructed of aluminium-lithium
alloys, carbon-fibre composites (C-FC), and
titanium alloy steels.
 Composite materials are used to make an
aircraft both lighter and stronger at the same
time compared to an all-metal design.

9. AIRFRAME

10. Glass cockpit
 The term Glass Cockpit refers to a modern
cockpit in which all the round dialled electro-
mechanical instruments have been replaced
with Multi-Function Displays (MFDs) and a
Head Up Display (HUD).
 A glass cockpit uses several displays driven by
flight management systems, which can be
adjusted to display flight information as
needed.
 This simplifies aircraft operation and
navigation and allows pilots to focus only on
the most pertinent information.

11. Glass cockpit

12. RADAR
 The coherent pulse-Doppler Multi Mode
Radar is designed to operate equally
effectively in the Air to Air and Air to
Surface domains.
 Jointly developed as an Indian – Israeli
venture.
 The radar facilitates all weather
employment of a variety of Air to Air and
Air to Surface Weaponry, and is the
primary targeting sensor on the Tejas.

13. RADAR

14. POWER PLANTS
• Engine – GE-F404-IN20 for LCA Mk1,
 GE-F414-INS6 for LCA Mk2

15. WEAPONS

16. WEAPONS
 Any modern fighter is only as good as the weapons
she can deliver on target.
 The Tejas is designed to carry a veritable plethora of
air to air, air to surface, precision guided and standoff
weaponry.
 In the air to air arena, the Tejas carries long range
beyond visual range weapons, with highly agile high
off-bore sight missiles to tackle any close combat
threat.
 A wide variety of air to ground amunitions and an
extremely accurate navigation and attack system
allow it to prosecute surface targets over land or at
sea with unparalleled accuracy, giving the Tejas true
multi/swing role capability.

17. Planned production variants
 Tejas trainer for air force
 Tejas trainer for navy
 Tejas Mk1
 Tejas Mk2

18. Tejas trainer
 Tejas Trainer - Two-seat operational conversion
trainer for the Indian Air Force.
 Tejas Trainer IN - Two-seat operational
conversion trainer for the Indian Navy.
Air force trainer Navy trainer

19. Teas Mark 1A-
 HAL is now working on developing a new
variant ; LCA Mark IA, which will be
equipped with an advanced AESA Radar
and an electro-optic Electronic Warfare
(EW) sensor suite. The AESA radar will be
supplied by Israel’s ELTA Systems.
 The timeline for this variant has been set
at 2017.
 100 Tejas aircraft will be equipped with
ELTA's EL/M-2052 AESA radar.

20. TEJAS MARK 2
 The Tejas Mark 2 is to feature the
more powerful General Electric F414-
GE-INS6 engine with 98 kN of thrust
and refined aerodynamics.
 The Mark 2 is being developed to meet
the latest IAF requirements and will
incorporate fifth-generation jet fighter
elements which are intended to make
way into the FGFA and AMCA.
 the first flight is likely to be 2019 with
an entry into service in 2022.

21. TEJAS MK2 NAVY
 Twin- and single-seat carrier-capable variants
for the Indian Navy.
 It will be equipped for carrier operation with
ski-jump take-off and arrested landing. It will
include strengthened airframe and landing gear
and drooped nose for better cockpit vision.

22. LCA AF Mk2
KEY FEATURES
 • Improved Performance,
Survivability & Maintainability
 • Higher thrust Engine
 • Aerodynamic improvements
 • Active Electronically Scanned
Array (AESA) Radar
 • Digital Flight Control
Computer Upgrade
 • Unified Electronic Warfare
Suite
 • Avionics Upgrade
 • Glass Cockpit
 • Fuel Dumping System
 • On Board Oxygen Generation
System
 • Increased Fuel Capacity
 • Increased Pay load
 • Obsolescence Management
 DIMENSION
 Span : 8.2 m
 Length : 13.7 m
 Height : 4.4 m
 POWERPLANT
 GE-F414-INS6
 PERFORMANCE
 Service Ceiling : 15 km
 ‘g’ Limits : +9 / -3.5
 Max speed : Supersonic

23. Time line
 Indian Air Force – 120 LCA [20 x Mk 1 and
100 x Mk 1A] aircraft planned to be
acquired.
 Four squadrons of LCA Mk 2 aircraft planed
to be acquired after completing production
of LCA Mk 1.
 The IAF was considering at least 14 Tejas
suadrons with 294 aircraft , with each
squadron to have 21 aircraft.
 The Indian Navy has a requirement for 40
Tejas aircraft.

24. Development partners
 The nucleus of Tejas Aircraft is
Aeronautical Development Agency (ADA)
whose principal partner is Hindustan
Aeronautics Limited.
 Indian Air Force, Indian Navy, DGAQA, BEL,
various DRDO and CSIR Laboratories,
Private and Public Sector undertakings and
several academic institutions have actively
participated and contributed to this truly
national venture which has directly and
indirectly bridged major technological gaps in
several disciplines.

26. tejas

27. THANKING YOU