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Chengdu J-20 vs. Sukhoi Su-27

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J-20

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Su-27

Role
All-weather stealthMulitrole fighter
Generation
5th generationFourth generation
National Origin
ChinaSoviet Union/Russia
Manufacturer
ChengduSukhoi
Price (USD)
$120 Million$30 Million
Primary Users
People's Liberation Army Air ForceRussian Air Force
First Flight
20111977
Last Production Year
In ProductionIn Production
# Units Built
>150>680
Status
In ServiceIn Service
Seats
1 (J-20A) / 2 (J-20S)1
Length
21 m69 ft
21 m71 ft
Wingspan
13 m42 ft
14 m48 ft
Wing Area
73 m²785 ft²
62 m²667 ft²
Height
4 m15 ft
5 m19 ft
Empty Weight
17,001 kg37,480 lbs
16,379 kg36,110 lbs
Gross Weight
25,002 kg55,120 lbs
23,428 kg51,650 lbs
MTOW
37,000 kg81,570 lbs
30,450 kg67,130 lbs
Fuel Capacity
11,793 kg26,000 lbs
9,400 kg20,723 lbs
Number of Engines
22
Engine Type
TurbofanTurbofan
Engine Manufacturer
ShenyangLyulka
Engine Model
WS-10CAL-31F
Dry Thrust
145 kN32,600 lbs
75 kN16,910 lbs
Thrust w/ Afterburner
142 kN32,000 lbf
123 kN27,600 lbf
Max Thrust
284 kN64,000 lbf
245 kN55,200 lbf
Max Speed (Mach)
Mach 2.00Mach 2.35
Top Speed
2,136 km/h1,327 mph
2,575 km/h1,600 mph
Range
2,037 km1,100 nm
3,537 km1,910 nm
Rate of Climb
304 m/s59,800 ft/min
300 m/s59,000 ft/min
Ceiling
20,117 m66,000 ft
18,898 m62,000 ft
G Limit
9 g9 g

What Are the Differences Between the Chengdu J-20 and Sukhoi Su-27

Chengdu J-20 vs Sukhoi Su-27 Size Comparison

  • At 21.90 meters, the Sukhoi Su-27 is 0.70 meters longer than the Chengdu J-20.
  • With a wingspan of 14.70 meters, the Sukhoi Su-27 is 1.70 meters wider from wingtip to wingtip.
  • The wing area of the Sukhoi Su-27 is 1.20 meters bigger than that of the Chengdu J-20’s 4.70 meters.

Chengdu J-20 vs Sukhoi Su-27 Price

  • The Chengdu J-20 is more expensive than the Sukhoi Su-27, with a unit cost of approximately 120 million compared to the Sukhoi Su-27’s unit cost of approximately 30 million.

Chengdu J-20 vs Sukhoi Su-27 Speed

  • The Sukhoi Su-27 has a top speed of 1,600 miles per hour, and the Chengdu J-20 has a top speed of 1,327 miles per hour. Head to head, this makes the Sukhoi Su-27 273 miles per hour faster than the Chengdu J-20.

About the Chengdu J-20

The Chengdu J-20 "Mighty Dragon" is China's first fifth-generation, stealth, multi-role fighter aircraft, developed for the People's Liberation Army Air Force (PLAAF). Introduced into service in 2017, the J-20 represents a significant leap forward in Chinese military aviation, designed to secure air superiority and support the strategic objectives of China's defense policy. It combines advanced stealth capabilities, long-range strike potential, and high maneuverability to counter enemy fighters and missile systems effectively.

Production History: The J-20's development started in the early 2000s, with the goal of producing an aircraft capable of matching or surpassing the capabilities of contemporary American fifth-generation fighters such as the F-22 Raptor and F-35 Lightning II. The first flight occurred in 2011, and after a series of extensive tests and evaluations, the J-20 was officially declared combat-ready and entered PLAAF service in 2017.

Design Features: The J-20 features a sleek, aerodynamic design with low radar cross-section characteristics, including internal weapon bays to minimize its visibility to radar. It is equipped with two high-thrust turbofan engines, contributing to its supercruise capability and high-speed performance. The J-20's large frame allows for considerable fuel and payload capacity, extending its range and versatility in operations.

Operational History: While specific details of the J-20's operational history remain closely guarded, it is known to have participated in various military exercises and training operations since its introduction. The J-20 is intended to perform a range of missions, from air superiority and suppression of enemy air defenses (SEAD) to precision strikes and reconnaissance, demonstrating its strategic importance to the PLAAF.

Comparison with Similar Models:

J-20 "Mighty Dragon" vs. F-22 Raptor

Stealth and Performance: The F-22 Raptor is renowned for its stealth capabilities and unmatched air superiority performance. The J-20 aims to rival this with its own stealth design and advanced aerodynamics, though the F-22 maintains an edge in stealth technology and supermaneuverability due to its thrust vectoring capabilities.

Avionics and Systems Integration: Both aircraft feature state-of-the-art avionics suites, but the F-22's mature systems and operational experience provide it with proven capabilities in combat environments.

J-20 "Mighty Dragon" vs. F-35 Lightning II

Multi-Role Flexibility: The F-35 Lightning II is designed as a multi-role stealth fighter, excelling in ground attack, reconnaissance, and air defense missions with its advanced sensor fusion and stealth characteristics. The J-20, while primarily focused on air superiority, also incorporates multi-role capabilities.

Technological Innovation and Exportability: The F-35 has seen widespread export to allies of the United States, enhancing global interoperability. The J-20, being a critical asset for China's national defense, has not been offered for export.

About the Sukhoi Su-27

The Sukhoi Su-27 "Flanker" is a highly maneuverable, twin-engine supersonic fighter aircraft developed by the Soviet Union and introduced into service in the early 1980s. Designed primarily for air superiority missions, the Su-27 was a direct response to U.S. fourth-generation fighters such as the F-15 Eagle.

Production History: Development of the Su-27 began in the early 1970s, with the first prototype taking flight in 1977. Its introduction into service in 1985 marked a significant advancement in Soviet air combat capabilities, with production continuing into the 1990s. The Su-27 platform has spawned a number of variants and developments, including the Su-30, Su-33, Su-34, and Su-35, each tailored for specific mission profiles ranging from long-range interception to ground attack.

Design Features: The Su-27 features a large airframe with a distinctive blend of integrated forebody and wing, known as a blended wing-body design, which contributes to its high lift and agility. Powered by two Saturn AL-31 turbofan engines, it is capable of reaching speeds over Mach 2. The aircraft is equipped with a sophisticated radar and fire-control system, allowing it to engage multiple targets simultaneously with a variety of air-to-air missiles.

Operational History: The Su-27 has been actively involved in numerous military engagements and exercises since its introduction. Its combat debut occurred in the Ethiopian-Eritrean conflict, where it demonstrated superior air combat capabilities. The Su-27 has also been involved in patrolling and air defense missions in several regions, showcasing its versatility and effectiveness as an air superiority fighter.

Comparison with Similar Models:

Su-27 "Flanker" vs. F-15 Eagle

Aerodynamics and Agility: Both aircraft were designed for air superiority, with the Su-27 known for its exceptional maneuverability, enabled by its aerodynamic design and thrust-vectoring capabilities in later models. The F-15 also boasts high agility and powerful engines, making it a worthy adversary in dogfights.

Technology and Armament: The F-15 has undergone numerous upgrades over its service life, incorporating modern avionics, radar systems, and weaponry. The Su-27, while initially lagging in avionics, has seen significant upgrades in its variants, narrowing the technological gap.

Su-27 "Flanker" vs. F-22 Raptor

Stealth and Advanced Technologies: The F-22 represents a leap forward in fighter technology, with stealth capabilities, advanced avionics, and superior situational awareness. The Su-27, despite its lack of stealth features, compensates with its remarkable speed, range, and maneuverability.

Combat Philosophy: The Su-27 emphasizes traditional air combat virtues of speed, power, and maneuverability, while the F-22 focuses on stealth, advanced sensors, and beyond-visual-range engagements, reflecting different approaches to achieving air dominance.

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Values shown may not be 100% accurate, as some metrics are averages or only represent certain production years and configurations. Engine specs are based on the best options available.

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