Yakovlev Yak-42

Updated: October 2026 – A mid-size jet with three exhausts at the rear, a high T-tail and a wing that looks astonishingly straight for a jet: that is the Yakovlev Yak-42. The Soviet three-engine jet for around 120 passengers was intended as a successor to older short- and medium-haul aircraft at Aeroflot and, with only around 180 production aircraft built, remained a comparatively rare type. Here you will learn how to identify the Yak-42 with confidence, what sets it apart from the Tu-154, Boeing 727 and its little sister the Yak-40, and where you can still come across it today.

What is the Yakovlev Yak-42?

The Yak-42 is a three-engine narrowbody aircraft for short and medium-haul routes, developed by the Yakovlev design bureau. Until then the bureau had been known mainly for sport, trainer and military aircraft; in airliner construction it had gained experience with the small Yak-40. The Yak-42 was meant to be one size larger: it was aimed at routes where Aeroflot wanted to replace older types, and was designed for up to 120 passengers.

The first prototype, registered CCCP-1974, took off on March 7, 1975. Exciting for tech fans: Ilyushin, Tupolev and Yakovlev tried out a lot in this period, and with the Yak-42 too the wing shape was not yet settled. The first prototype flew with a wing of only 11 degrees of sweep, the second with 23 degrees. For series production the 23-degree variant was chosen – still clearly less than on Western three-engine jets of the same era. The landing gear changed as well: the prototypes had two main wheels per side, from the first production aircraft it was four.

At the end of 1980, Aeroflot began passenger service; the airworthiness certificate dates from December 1980. Production was first in Smolensk, where only a small number were built until 1981, then at the Saratov aircraft plant, which built the bulk of the series until 2003. By the common Russian count, around 183 production aircraft were built, two of them for structural tests; other sources give up to 188.

Technology: rugged, simple and without thrust reversers

The Yak-42 was built for the Soviet route network: many airfields with basic infrastructure, little ground equipment, rough conditions. You notice this in several details.

It is powered by three Lotarev D-36 engines (later listed under the name Progress), each with around 63.7 kilonewtons of takeoff thrust. The D-36 was one of the first Soviet high-bypass turbofans and thus more economical and quieter than the engines of older Soviet jets. Two engines hang in nacelles on the sides of the rear fuselage, the third sits in the tail and breathes through an air inlet in front of the fin – the same basic principle as on the Boeing 727 or the Hawker Siddeley Trident.

There is no thrust reverser. The Yak-42 brakes after landing with the wheel brakes and the spoilers on the wings. For spotters this means: the typical roar of the engines just after touchdown does not happen.

For operations without jet bridges, the Yak-42 has two stairs of its own: one in the floor of the fuselage under the tail, another at the front door on the left side. Passengers could thus board and deplane even at small airfields without stairs. Two pilots sit in the cockpit, depending on the configuration and operator supplemented by a flight engineer – on the larger Tu-154, by contrast, the flight engineer was a permanent part of the crew.

Version	Features	Note for spotters
Yak-42	First production version, D-36 engines	Out of service for a long time, occasionally in museums
Yak-42D	More fuel, higher takeoff weight, longer range; production from the late 1980s	The version that still flies today – hardly distinguishable from the base version on the outside
Yak-42A / Yak-142	Modernized variant with Western avionics and a larger door for jet bridges	Only one built, check the registration
Yak-42LL	Testbed for engine trials	One-off, not an airline aircraft
Yak-242	Project for a twinjet with PS-90 engines	Never built, considered a precursor of the later MS-21

The line from the Yak-242 project, incidentally, leads to today’s Irkut MC-21, which initially ran under the name Yakovlev MS-21. If you want to read the type history in context, the overview of Soviet airliners helps.

The features that are enough to identify it

You can pin down the Yak-42 with three targeted looks. The trick is not to write it off too quickly as a Tu-154 or 727.

On the ground, the folded-out rear stairs under the end of the fuselage confirm the suspicion. Also pay attention to the fuselage length: at a good 36 meters, the Yak-42 is visibly shorter than a Tu-154 and looks stockier. The nose is round and plain, without a glazed navigator station – unlike the Tu-134. You will find more on reading noses and cockpit windows in the article Recognizing aircraft types by nose and cockpit windows.

Yak-42, Tu-154, Boeing 727 or Yak-40?

Three rear engines and a T-tail are shared by several classics. The finder helps you narrow it down.

The comparison with the 727 is especially interesting: both aircraft have a similar engine arrangement and a comparable fuselage diameter and were built for similar routes. The Yak-42, however, came a good decade later, with more modern high-bypass engines and a much less swept wing, which makes slower approaches to shorter runways easier.

Setbacks: grounding and serious accidents

The Yak-42’s career began bumpily. On June 28, 1982, an Aeroflot aircraft crashed, and all 132 people on board were killed. The cause was a failure in the adjustment mechanism of the horizontal stabilizer. The entire fleet remained grounded afterward until the design was changed; only in the mid-1980s did the type return to scheduled service. This setback cost valuable years in which the Yak-42 was actually supposed to replace older aircraft.

The type was also accompanied by serious accidents later. In 1992 in China there was a rejected takeoff with a runway overrun in which 108 people died. In 1993 a Yak-42 operated by the airline Avioimpex hit terrain on approach to Ohrid in North Macedonia, and all 116 occupants died. In May 2003 an aircraft of a Ukrainian airline smashed into a mountain in Turkey in poor visibility; among the 75 dead were 62 Spanish soldiers on their way home from Afghanistan.

Internationally the crash of September 7, 2011 in Yaroslavl became especially well known: the Yak-42D carried the ice hockey team Lokomotiv Yaroslavl, and 44 of 45 people died. Investigators concluded that a pilot had inadvertently pressed the brakes during takeoff, so that the aircraft only lifted off far beyond the end of the runway. After the accident the remaining Yak-42 in Russia came under pressure again.

Operators: from Aeroflot to Cuba and China

The main customer was Aeroflot, which used the Yak-42 on domestic and regional routes. After the end of the Soviet Union the aircraft were spread among numerous successor airlines in Russia, Ukraine and other states. Saratov Airlines, from the home city of the manufacturer’s plant, was important for a long time; its last flying Yak-42D went to KrasAvia in 2019. You will find the group behind Aeroflot today under Aeroflot Group.

Exports remained modest. China took over some Yak-42D, among others for China General Aviation, and Cubana de Aviación also used the type. There were also isolated leasing and charter operators outside Russia. The modernized Yak-142 played a special role: only one was built from the prototype with Western avionics, and it was used as a corporate aircraft.

Who still flies the Yak-42 today?

The active fleet has become small. According to fleet overviews from 2025, mainly two Russian regional airlines still use the Yak-42D in scheduled service:

• Izhavia from Izhevsk with a handful of aircraft
• KrasAvia from the Krasnoyarsk region, also with a single-digit number of aircraft

How many of them are actually airworthy in October 2026 cannot be said reliably from open sources. Many of the aircraft are now over 30 years old. When in doubt, check the registration in a fleet database. You recognize Russian aircraft by the prefix RA- – more under Country codes on aircraft.

Where you can see the Yak-42

For spotters from German-speaking Europe, the Yak-42 is a real exotic. Unlike the Il-62 or the Tu-134, it never flew with the East German airline Interflug and therefore has no tradition on German aprons. Displayed examples exist mainly in Eastern Europe: an early aircraft stands on the VDNKh exhibition grounds in Moscow, and another is shown by an aviation museum in Kryvyi Rih, Ukraine. Both are currently hard to reach for most spotters.

Place	Chance	Why
Russian regional airports (e.g. Izhevsk, Krasnoyarsk)	medium	Bases of the last operators
Moscow, VDNKh	high (on the ground)	Displayed early Yak-42
Kryvyi Rih (Ukraine)	high (on the ground)	Museum example, access depends on the situation
Germany, Austria, Switzerland	very low	No scheduled service, airspace ban for Russian aircraft

If you still travel to a country where the Yak-42 is still around, you should know the local rules precisely: in Russia and Belarus, photographing at airports can quickly bring trouble. What you need to know is in the article Photography bans in Russia and Belarus.

Spotting tips for a rare three-engine jet

A flying Yak-42 is a trophy today. How to judge how special your sighting is is shown in the article How rare is my sighting?; general strategies for exotics you will find under Spotting rare aircraft. And if you would like to sit in a classic yourself once, you get inspiration under Flying rare aircraft types as a passenger.

You work out in advance when the light fits at your location – how to do that is explained in Planning the sun position for your photo spot. How to recognize vintage aircraft in the sky in general is covered in the article How to recognize vintage aircraft.

Common mix-ups and how to rule them out

Conclusion

The Yak-42 is one of the less conspicuous classics of Soviet aviation: modern for its time, rugged for basic airfields, but held back by a long grounding and the upheavals after 1991. With three rear engines, a T-tail and its little-swept wing it is still easy to recognize – once you have one in front of you.