The Sukhoi Su-33 (Flanker-D) is an all-weather carrier-based air defence fighter designed by Sukhoi and manufactured by KnAAPO. It is a derivative of the Su-27 "Flanker" and was initially known as the Su-27K. The aircraft was first used in operations in 1995, aboard the carrier Admiral Kuznetsov. It officially entered service in August 1998, by which time the designation "Su-33" was used. Following the break-up of the USSR and the subsequent downsizing of the Russian Navy, only 24 aircraft were produced. Attempted sales to China and India fell through.
Compared with the Su-27, the Su-33 has a strengthened undercarriage and structure, folding wings, and stabilators, all for carrier operations. The wings are larger than on land-based aircraft for increased lift. The Su-33 has upgraded engines and a twin nose wheel, and is air refuelable. The aircraft's range and payload are greater than those of the rival MiG-29K, but the Mikoyan fighter has more advanced avionics and is capable of a wider range of missions, including strike operations. In 2009, the Russian Navy ordered the MiG-29K as a replacement for the Su-33.
To adapt the original Su-27 for naval operations, Sukhoi first incorporated a reinforced structure and undercarriage withstand the great stress experienced upon landing, particularly quick descents and non-flare landings (landings where the aircraft does not assume a nose-up attitude prior to touchdown). The leading edge slats, flaperons and other control surfaces are enlarged to provide increased lift and manoeuvrability at low speeds, although the wingspan remains unchanged. The wings feature double-slotted flaps and outboard drooping ailerons; in total, the refinements enlarge the wing area by 10–12%. The wings and stabilators are modified for folding to maximise the number of aircraft the carrier can accommodate and to allow ease of movement on deck. The aircraft is outfitted with more powerful turbofan engines to increase thrust-to-weight ratio, as well as an in-flight refuelling probe. The Su-33 sports canards that shorten the take-off distance and improved manoeuvrability, but have required reshaping of the leading edge root extensions (LERX). The rear radome is shortened and reshaped to prevent its striking the deck during high-Alpha (angle of attack) landings.
Compared with the rival MiG-29K, the Su-33's maximum takeoff weight (MTOW) is 50% higher; fuel capacity is more than double, allowing it to fly 80% further at altitude (or 33% at sea level). The MiG-29K can spend as much time as the Su-33 on station by using external fuel tanks, but this limits its ordinance capacity. The Su-33 can fly at speeds as low as 240 km/h (149 mph), in comparison the MiG-29K needs to maintain a minimum of 250 km/h (155 mph) for effective control. However, the MiG-29K carries more air-to-ground munitions than the Su-33. The Su-33 is more expensive and physically larger than the MiG-29K, limiting the numbers able to be deployed on an aircraft carrier.
The Su-33 carries guided missiles such as the R-73 (four) and R-27E (six) on twelve hardpoints, supplemented by the 150-round 30 mm GSh-30-1. It can carry an assortment of unguided missiles, bombs and cluster bombs for secondary air-to-ground missions. The aircraft can be used in both night and day operations at sea. The radar used, "Slot Back", has been speculated to have poor multi-target tracking, making the Su-33 reliant on other radar platforms and airborne warning and control system (AWACS) aircraft like the Kamov Ka-31 early-warning helicopter. The R-27EM missiles have the capability to intercept anti-ship missiles. The infra-red search and track (IRST) system is placed to provide better downward visibility.General characteristics
- Crew: 1
- Length: 21.94 m (72 ft)
- Wingspan: 14.70 m (48.25 ft)
- Height: 5.93 m (19.5 ft)
- Wing area: 62.0 m² (667 ft²)
- Empty weight: 18,400 kg (40,600 lb)
- Loaded weight: 29,940 kg (66,010 lb)
- Max takeoff weight: 33,000 kg (72,752 lb)
- Powerplant: 2 × AL-31F afterburning turbofans
- Dry thrust: 74.5 kN (16,750 lbf) each
- Thrust with afterburner: 125.5 kN (28,214 lbf) each
- Wingspan, wings folded: 7.40 m (24.25 ft)
Performance
- Maximum speed: Mach 2.17 (2,300 km/h, 1,430 mph) at 10,000 m (33,000 ft) altitude
- Stall speed: 240 km/h (150 mp/h)
- Range: 3,000 km (1,864 mi)
- Service ceiling: 17,000 m (55,800 ft)
- Rate of climb: 325 m/s (48,500 ft/min)
- Wing loading: 483 kg/m²; (98.9 lb/ft²)
- Thrust/weight: 0.83
- Maximum turn: +8 g (+78 m/s²)
- Landing speed: 240 km/h (149 mph)
Armament
- 1 × 30 mm GSh-30-1 cannon with 150 rounds
- Up to 6,500 kg (14,300 lb) of munitions on twelve external hardpoints, including:
- 8 × R-27, or 8 × R-77 and 4 × R-73 air-to-air missile
- Various bombs and rockets
- Electronic countermeasure (ECM) pods
