Yakovlev Yak-40: Soviet three-engined regional jet airliner

Design and characteristics

The Yak-40 is a low-wing monoplane with a T-tail and three rear-mounted turbofan engines. Key design priorities were simplicity, ruggedness and short-field performance. The cabin is pressurized and, depending on interior layout, accommodates roughly two dozen to about thirty passengers. The airframe and landing gear were designed to tolerate unprepared or rough runways, making the type suitable for remote or poorly equipped airports.

Development and service history

Conceived by the Yakovlev design bureau to replace slower turboprops on local routes, the Yak-40 first flew in the mid-1960s and entered service by the end of that decade. It was produced in significant numbers for Aeroflot and other operators within the Soviet sphere and was also exported. For more on the design origin and manufacturer see the Yakovlev bureau.

Typical operations and variants

The type has served as a commuter airliner, corporate or VIP transport, ambulance, and government utility aircraft. Operators valued its ability to operate from short or unpaved strips and its straightforward maintenance needs. Several factory and aftermarket variants provided different interiors and equipment fits for special roles.

Notable features and legacy

• Three low-bypass turbofan engines mounted at the rear for compact wing design and simplified ground handling.
• Capability to use austere airfields, broadening regional connectivity in remote areas.
• Simple systems and construction that made it economical to operate and maintain in many climates.

Further reading

For technical data, production history and operator lists consult specialized sources and type-specific references available through archives and technical collections: technical and historical references.