Yakovlev Yak-42 - Variants

Variants

Yak-42

Original production version. Max take-off weight 54,000 kg (119,050 lb).

Yak-42ML

Version with modified avionics for use on international use (mezhdunarodnyye linii – international services). Entered service in July 1981 on the Leningrad-Helsinki route.

Yak-42D

Long-range version (Dahl'niy – long range) increased fuel. Replaced standard Yak-42 in production.

Yak-142

Derivative of Yak-42D with updated, western AlliedSignal avionics, spoilers to allow faster descent and enlarged cabin door to accommodate jet bridge. Also designated Yak-42A, Yak-42-100 and Yak-42D-100.

Yak-42R

Yak-42 used as testbed for radar for Yakovlev Yak-141 fighter.

Yak-42F

Conversion of a Yak-42 for geophysical survey and environmental monitoring. Fitted with large underwing pods containing electro-optical sensors.

Yak-42LL

Conversion as testbed for Progress D-236 propfan engine. Single D-236 (rated at 8,090 kW (10,850shp)) mounted in place of starboard engine, on special pylon to give sufficient clearance for 4.2 m (13 ft 9¾ in) propellers. First flew 15 March 1991.

Yak-42M

A projected but unbuilt stretched airliner. Planned to be powered by three Progress D-436 turbofans, a stretched fuselage and new wings. Design developed into Yak-242.

Yak-242

Further developed Yak-42M, with two underwing Aviadvigatel PS-90 turbofans. Design evolved into MS-21.