The Yakovlev Yak-40 is a small Soviet three-engined airliner. It is the world's first commuter trijet. The Yak-40's maiden flight was made in 1966, and production took place from 1967 to 1981. Introduced in September 1968, the Yak-40 was exported from 1970 on, though it was less successful on the world market.
Variants[]
- Yak-40: First production variant.
- Yak-40-25: Military conversion with the nose of a MiG-25R and SRS-4A Elint installation.
- Yak-40 Akva (Aqua): Military conversion with nose probe, pylon-mounted sensors, a fuselage dispenser and underwing active jammer pods.
- Yak-40D (Dal'niy – long-distance): Variant with increased range.
- Yak-40CE: Export version.
- Yak-40 Fobos (Phobos): Military conversion with two dorsal viewing domes and a removable window on each side.
- Yak-40K: Cargo/Convertible/Combi version with a large freight door. Produced in 1975–81.
- Yak-40 Kalibrovshchik: Military ELINT conversion with a "farm" of blade, dipole and planar antennas.
- Yak-40L: Proposed version with two Lycoming LF507-1N turbofans, a joint program between Skorost and Textron (now Allied-Signal) Lycoming. The original design would have had a slightly swept wing.
- Yak-40 Liros: Military conversion with nose probe carrying air-data sensors.
- Yak-40M: Proposed 40-seat stretched passenger version.
- Yak-40 M-602: Flying testbed with a Czechoslovak M 602 turboprop installed in the nose.
- Yak-40 Meteo: Military conversion with multipole dipole antennas and fuselage dispenser.
- Yak-40P: Yak-40L with large nacelles projecting ahead of the wings.
- Yak-40REO: Military conversion with large ventral canoe for IR linescan. Lateral observation blister on right side.
- Yak-40 Shtorm: Military conversion with multiple probes and sensors on the forward sidewalls.
- Yak-40TL: Proposed upgraded version, to be powered by three Lycoming LF 507 turbofan engines.
- Yak-40V: Export version powered by three AI-25T turbofan engines.
- Yak-40MS: Experimental upgrade with two Honeywell TFE731-5 turbofan engines by SibNIA.
- STR-40DT: A proposed twin-engine composite-wing derivative along the line of TVS-2DTS, also being developed by SibNIA. Endorsed, but not supported by Yakovlev.
See Also[]
Related Development[]
Comparable Aircraft[]
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Focke-Wulf-Fokker 614- Fokker F28 Fellowship
Fokker F70
