The document discusses potential replacement options for India's aging MiG-21 fighter aircraft fleet. It recommends the Eurofighter Typhoon, Lockheed Martin F-35 Lightning II, and Sukhoi Su-57. Key dimensions and performance metrics are compared for each aircraft. The document ultimately recommends the Sukhoi Su-57 as the best option, noting that Russia is already a trusted vendor, the Su-57 has advanced technologies like stealth, and offers better fuel capacity and climb rate compared to the other options at a lower price.

1. FIGHTER
AIRCRAFTS
MADE BY – JUHI SHARMA

2. WHY THERE IS NEED TO REPLACE MIG-21 ?
• The MIG-21 was first inducted in Indian Air Force in mid 1960s which was expected to
retire by mid-1990s, but were upgraded to Bison standards.
• The MiG's are built from the technology of 1960s and the 1970s.Hence there is a strong
need to upgrade Aircrafts with latest technologies to fight against advanced aircraft such
as F-16.

3. RECOMMENDED AIRCRAFTS
• 1. Eurofighter Typhoon
• 2. Lockheed Martin F-35 Lightning II
• 3. Sukhoi Su-57

4. EUROFIGHTER TYPHOON
 The Eurofighter Typhoon is a twin-engine, canard–delta wing, multirole fighter.
 The battle-proven Eurofighter Typhoon is the world's leading air defence and ground
attack aircraft with full multi and swing-role capabilities.
 It is called the "Eurofighter" because it was made by European countries, Italy, the United
Kingdom, Germany, and Spain.
The Eurofighter Typhoon is a highly agile aircraft, designed to be a supremely
effective dogfighter in combat.

5. SUKHOI SU-57
 Developed by Sukhoi Company, the Su-57 is going to become the most technologically
advanced Russian fighter jet.
 The Sukhoi Su-57 is a stealth, single-seat, twin-engine multirole fifth-generation jet fighter
 Sergey Bogdan was the first pilot to test the Su-57 in 2010.
 Compared to the F-35, the Su-57 only cost the Russians an estimated $10 billion to research,
develop and prepare for production.
 The fighter is designed to have super cruise, supermanoeuvrability, stealth, and advanced
avionics to overcome the prior generation fighter aircraft as well as ground and naval defences.

6. LOCKHEED MARTIN F-35 LIGHTNING II
 The Lockheed Martin F-35 Lightning II is a family of single-seat, single-engine, all-weather,
stealth, fifth-generation, multirole combat aircraft, designed for ground-attack and air-
superiority missions.
 It is built by Lockheed Martin and many subcontractors, including Northrop Grumman, Pratt
& Whitney, and BAE System
 The F-35 has 3 main models
• Conventional take off and landing F-35A (CTOL)
• Catapult-Assisted Take-Off but arrested recovery, carrier-based F-35C (CATOBAR)
• Short take-off and vertical-landing F-35B (STOVL)

7. KEY DIMENSIONS AND PERFORMANCE
COMPARISION
FACTORS EUROFIGHTER TYPHOON F-35 Lightning II Sukhoi Su-57 f-16
KEY DIMENSIONS
PRICE 112-140 MILLION USD 94-122 MILLION USD 42 MILLION USD 47 MILLION USD
LENGTH 15.96 m (52 ft 4 in) 50 ft 6 in (15.39 m) 19.8 m (65 ft 0 in) 49 ft 5 in (15.06 m)
HEIGHT 5.28 m (17 ft 4 in) 14 ft 2.5 in (4.331 m) 4.74 m (15 ft 7 in) 16 ft (4.9 m)
WING SPAN 10.95 m (35 ft 11 in) 35 ft (11 m) 13.95 m (45 ft 9 in) 32 ft 8 in (9.96 m)
EMPTY WEIGHT 11,000 kg (24,251 lb) 28,999 lb (13,154 kg 18,000 kg (39,683 lb) 18,900 lb (8,573 kg)
MAX TAKE OFF WEIGHT 23,500 kg (51,809 lb) 70,000 lb (31,751 kg 35,000 kg (77,162 lb) 42,300 lb (19,187 kg)
FUEL CAPACITY
4,996 kg (11,010 lb) / 6.215 l
(1.642 US gal; 1.367 imp gal) internal[ 18,498 lb (8,391 kg) 10,300 kg 7,000 pounds (3,200 kg)
PERFORMANCE
COMBAT RANGE 1,389 km 669 nmi (770 mi, 1,239 km 1,500 km
MAXIMUM SPEED 2,495 km/h 1,930 km/h) 2,120 km/h 1,472 km/h
SERVICE CEILLING 19,812 m (65,000 ft) 50,000 ft 20,000 m (66,000 ft) 50,000 ft
RATE OF CLIMB 318 m/s (62,600 ft/min) 45,000ft/min (228.6 m/s 361 m/s 50,000 ft/min (250 m/s)
THRUST TO WEIGHT RATIO 1.15 0.87 1.02 1.095

8. ARMAMENTS

10. Sukhoi is already a trusted vendor for IAF as IAF is currently using Sukhoi30mki.
Sukhoi Su-57 is best fighter aircraft in this price range and is equipped with all the latest
technologies.
Sukhoi Su-57 has large fuel tank- 10,300 kg .
Sukhoi climb rate is - 361 m/s , which is high as compared to others.
The Su-57 is intended to be a fifth-generation multirole fighter aircraft and the first
operational stealth aircraft for the Russian Air Force.
FINAL RECOMMENDATION TO IAF - SUKHOI SU-
57