Yakovlev Yak-40K SSSR 87490Photographed at Monino Air Force Museum on 24 August 2009. C/n 9110117.
The Yak-40K is a special cargo version with a door measuring 1.6 by 1.5m (63 by 59in) on the left side behind the service door.
See also
picture #9014 and
picture #9063.
Wkipedia summary:
"Despite its many shortcomings, including obsolete and inefficient engines, primitive avionics, and a cruise speed below many contemporary turboprops, the Yak-40 must be considered a very successful aircraft. The design pioneered the concept of the regional jet, a type now essential to virtually all airline operations. That 40% of all Yak-40s built are still operating nearly three decades after the last one rolled off the assembly line is impressive. More impressive still is that these aircraft are largely operating in poor, underdeveloped countries where parts and maintenance are often lacking, a testament to the Yak's planned durability. With the demise of Yakovlev as an independent company, in retrospect the Yak-40 must be considered Yakovlev's most successful design based on its safety record, hours of operation and passengers flown."
Picture added on 07 January 2010 at 10:20