Sukhoi Su-27

Sukhoi Su-27. The Sukhoi Su-27 is a twin-engine, supermaneuverable air superiority fighter originally developed by the Soviet Union's Sukhoi design bureau. Designed as a direct response to new United States Air Force fighters like the McDonnell Douglas F-15 Eagle, it entered service with the Soviet Air Forces in 1985 and remains a cornerstone of the Russian Aerospace Forces. Renowned for its long range, powerful NPO Saturn AL-31 engines, and sophisticated Phazotron N001 Myech radar, the Su-27 established a new benchmark in Soviet Air Force capabilities and became the progenitor of a vast family of combat aircraft.

Development and design

The development program, designated T-10, was initiated in 1969 to counter the advanced F-15 Eagle and other Western Bloc threats. Led by chief designer Mikhail Simonov, the team at Sukhoi faced significant challenges, leading to a major redesign after the initial T-10 prototype proved inadequate. The revised design, the T-10S, first flew in 1981 and featured a blended wing-body layout, twin vertical stabilizers, and a robust hydraulics system for exceptional agility. Key design goals included a very long combat radius, heavy weapon payload, and superior dogfight performance, achieved through innovations like relaxed stability and a fly-by-wire control system. The aircraft's formidable sensor suite was centered on the N001 Myech look-down/shoot-down radar and an integrated infrared search and track system.

Operational history

The Su-27 entered operational service with Soviet Air Defence Forces regiments in 1985, achieving initial operating capability. It gained international fame during the Cold War through dramatic intercepts of NATO reconnaissance aircraft like the Lockheed P-3 Orion and Boeing RC-135. Following the dissolution of the Soviet Union, the Russian Air Force extensively used the type during the First Chechen War and the Second Chechen War for air supremacy and escort duties. The fighter saw significant export success and combat use by other operators, including the Ukrainian Air Force, Ethiopian Air Force, and People's Liberation Army Air Force. Notable incidents include the Pskov Paratrooper Division's 1987 Baltic Sea barrel roll over a Norwegian P-3 Orion and its use by Eritrean Air Force during the Eritrean–Ethiopian War.

Variants

The basic Su-27 spawned an extensive family of specialized variants. The Su-27UB is a two-seat combat trainer, while the Su-27K was developed into the carrier-based Su-33 for the Russian Navy's Admiral Kuznetsov-class aircraft carrier. Further multirole developments include the two-seat Su-30 with thrust-vectoring and air-to-ground capabilities, exported widely to nations like India, China, and Vietnam. The Su-34 is a dedicated strike aircraft with a side-by-side cockpit, and the Su-35 is a deeply modernized "4++ generation" variant with advanced N035 Irbis radar and AL-41F1S engines. Other significant models are the Su-27M prototype, the Chinese license-built Shenyang J-11, and the Su-27SM upgrade for the Russian Air Force.

Operators

The primary operator remains the Russian Aerospace Forces, which fields hundreds across its air regiments. Major historical and current export operators include the Ukrainian Air Force, People's Liberation Army Air Force (which also operates the J-11), Indian Air Force (Su-30MKI), Vietnam People's Air Force, Indonesian Air Force, Algerian Air Force, and Venezuelan Air Force. The fighter has also seen service with the air forces of Angola, Eritrea, Ethiopia, Malaysia, Syria, Uzbekistan, and Belarus. Following the Russian invasion of Ukraine, both the Russian Aerospace Forces and Ukrainian Air Force have employed Su-27s in combat, with some Ukrainian aircraft being supplied by former Warsaw Pact nations like Poland.

Specifications (Su-27)

* **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) * **Empty weight:** 16,380 kg (36,110 lb) * **Max takeoff weight:** 30,450 kg (67,130 lb) * **Powerplant:** 2 × NPO Saturn AL-31F afterburning turbofans * **Maximum speed:** Mach 2.35 at altitude * **Ferry range:** 3,530 km (2,190 mi) * **Service ceiling:** 19,000 m (62,000 ft) * **Armament:** 1 × 30 mm Gryazev-Shipunov GSh-30-1 autocannon; 10 hardpoints for R-27, R-73, R-77 missiles, and various bombs/rocket pods * **Radar:** Phazotron N001 Myech pulse-Doppler

Category:Sukhoi aircraft Category:Soviet fighter aircraft Category:Cold War fighter aircraft