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| Yakovlev Yak-40 | |
|---|---|
| Name | Yakovlev Yak-40 |
| Caption | Yak-40 in service |
| Type | Regional airliner |
| Manufacturer | Yakovlev |
| First flight | 1966 |
| Introduced | 1968 |
| Retired | Partial |
| Primary user | Aeroflot |
| Produced | 1967–1981 |
| Number built | ~1,011 |
Yakovlev Yak-40 The Yakovlev Yak-40 is a small three-engined jet regional airliner developed by the Yakovlev design bureau for Aeroflot and domestic routes in the Soviet Union. It first flew in 1966 and entered service in 1968, serving alongside types such as the Antonov An-24, Tupolev Tu-134, and Ilyushin Il-18 on short-haul sectors. The type supported connections to regional hubs like Moscow, Leningrad, and Novosibirsk and was exported to states within the Warsaw Pact, India, China, and Cuba.
The Yakovlev bureau, led by designers associated with projects like the Yak-42 and influenced by earlier work at OKB-115, initiated the Yak-40 program to replace piston airliners such as the Lisunov Li-2 and turboprops like the Antonov An-2. The design emphasized rugged operations to serve austere airfields used by operators including Aeroflot, Soviet Air Forces, and various civil ministries in the USSR. Development involved state bodies such as the Ministry of Civil Aviation (Soviet Union) and testing by pilots from the Gromov Flight Research Institute. Flight trials compared the Yak-40 with contemporaries like the Fokker F27 and De Havilland Canada DHC-6 to validate short-field performance and reliability.
The Yak-40 is a low-wing cantilever monoplane powered by three rear fuselage-mounted turbofan engines similar in role to powerplants used on the BAe 146 and Fokker F28. Its tricycle landing gear and high-lift wing devices allowed operations from unpaved strips used by carriers such as Aeroflot and military units like the Soviet Air Defence Forces. The cockpit accommodated crews trained at institutions like the Moscow Aviation Institute and featured avionics compatible with navigation aids from GPA-35 suites and procedures from ICAO-aligned standards observed in export customers such as India and China. Structural design drew on metallurgical developments overseen by institutes like the Central Aerohydrodynamic Institute.
Aeroflot introduced the Yak-40 on regional services linking hubs such as Kazan, Yekaterinburg, and Rostov-on-Don and used it for feeder routes into long-haul services of fleets including the Ilyushin Il-62 and Tupolev Tu-154. Export deliveries supplied national carriers including Cubana de Aviación, Indian Airlines, and China Eastern Airlines and military operators such as the Czechoslovak Air Force and East German Air Force. The type took part in humanitarian and diplomatic missions involving states like Afghanistan and Angola during Cold War engagements overseen by institutions such as the Kremlin and ministries in allied countries. Over decades the Yak-40 operated in civilian, VIP, medevac, and training roles with organizations like Aeroflot-Akademiya.
Production models included the baseline passenger Yak-40 and versions modified for navigation training used by establishments like the Soviet Air Force and for VIP transport utilized by ministries in Poland and Hungary. Export-modified airframes served cargo and combi roles for carriers like Aeroflot subsidiaries and national airlines in Albania and Bulgaria. Specialized conversions were completed for operations with equipment from suppliers such as Soviet Instrument Design Bureau and retrofits by maintenance units in facilities like Tupolev Factory No. 22.
Major operators included Aeroflot as the primary civil user, alongside national carriers such as Cubana de Aviación, Indian Airlines, China Southern Airlines, and Iran Air. Military and governmental operators encompassed the Soviet Air Force, Czechoslovak Air Force, East German Air Force, and air arms of countries including Angola, Ethiopia, and Syria. Secondary operators and corporate users appeared across Europe, Asia, Africa, and Latin America, with maintenance support from organizations like Gazpromavia and overhaul facilities at plants in Moscow and Tashkent.
The Yak-40 experienced incidents and accidents involving carriers such as Aeroflot, Cubana de Aviación, and various national militaries. Events included runway overruns, controlled flight into terrain investigated by authorities like the Soviet State Commission, and midair occurrences examined by agencies equivalent to today's ICAO accident protocols. Notable investigations referenced procedures from bodies such as the Ministry for Emergency Situations (Russia) when assessing safety improvements and upgrades in operator fleets.
Crew: 2–3 (pilots, flight engineer on some missions) Capacity: ~27 passengers (typical), VIP and combi variants for fewer pax or cargo Powerplant: three low-bypass turbofan engines (rear fuselage-mounted) Performance: STOL-capable takeoff/landing distances suited to unprepared strips serving regional airports like Yakutsk and Magadan Dimensions: single-aisle fuselage optimized for short sectors; cargo door options for freight operations
Category:Soviet airliners