The Sukhoi Su-27 (Russian: Сухой Су-27; NATO reporting name: Flanker) is a Soviet-origin twin engine supersonic supermaneuverable fighter aircraft designed by Sukhoi. It was intended as a direct competitor for the large US fourth-generation jet fighters such as the Grumman F-14 Tomcat and McDonnell Douglas F-15 Eagle, with 3,530-kilometre (1,910 nmi) range, heavy aircraft ordnance, sophisticated avionics and high maneuverability. The Su-27 was designed for air superiority missions, and subsequent variants are able to perform almost all aerial warfare operations. It was designed with the Mikoyan MiG-29 as its complement.
 
Su-27UB ("Flanker-C")
Initial production two-seat operational conversion trainer.
 
General characteristics
Crew: 1
Length: 21.9 m (71 ft 10 in)
Wingspan: 14.7 m (48 ft 3 in)
Height: 5.92 m (19 ft 5 in)
Wing area: 62 m2 (670 sq ft)
Empty weight: 16,380 kg (36,112 lb)
Gross weight: 23,430 kg (51,654 lb)
Max takeoff weight: 30,450 kg (67,131 lb)
Fuel capacity: 9,400 kg (20,723.5 lb) internal
Powerplant: 2 × Saturn AL-31F afterburning turbofan engines, 75.22 kN (16,910 lbf) thrust each dry, 122.6 kN (27,600 lbf) with afterburner
Performance
Maximum speed: 2,500 km/h (1,600 mph, 1,300 kn) / M2.35 at altitude
1,400 km/h (870 mph; 760 kn) / M1.13 at sea level
Range: 3,530 km (2,190 mi, 1,910 nmi) At altitude
1,340 km (830 mi; 720 nmi) at sea level
Service ceiling: 19,000 m (62,000 ft)
g limits: +9
Rate of climb: 300 m/s (59,000 ft/min) 
Wing loading: 377.9 kg/m2 (77.4 lb/sq ft) With 56% fuel
444.61 kg/m2 (91.1 lb/sq ft)
Thrust/weight: 1.07 with 56% internal fuel; 0.91 with full fuel
Armament
Guns: 1 × 30 mm Gryazev-Shipunov GSh-30-1 autocannon with 150 rounds
Hardpoints: 10 external pylons with a capacity of up to 4,430 kg (9,770 lb)[143], with provisions to carry combinations of:
Rockets:
S-8KOM/BM/OM
S-13T/OF
S-25OFM-PU
Missiles:
6 × R-27R/ER/T/ET/P/EP air-to-air missiles
6 × R-73E AAMs
4 x AGM-88 HARM anti-radiation missile (Ukrainian AF)
Bombs:
FAB-500 general purpose bomb
RBK-250 cluster bomb
RBK-500 cluster bomb
JDAM-ER Guided bomb (Ukrainian AF)
Avionics
N001E radar
Phazotron Zhuk-MSE radar
Phazotron Zhuk-MSFE radar
Irbis-E passive electronically scanned array radar for Su-27SM2/SM3
OEPS-27 electro-optical targeting system
SPO-150 Radar Warning Receiver
OEPS-27 IRST
Shchel-3UM Helmet-mounted display system