For a long period of time the Russian aircraft industry does not produce Tight multipurpose aircraft of the so-called commercial class. To fill this niche in the Russian aircraft market, the design bureau named after Yakovlev has developed a single-engine four-sealer airplane, type YAK-112. Manufacture of this airplane at the Irkutsk Aircraft Production Association, notable for its high technical level, makes if possible to ensure the highest quality and reliabilify of the airplane. Despite a certain commercial risk, the YAK-112 is being manufactured in parallel with the manufacture of the SU-27 aircraft in order to meet the requirements for aircraft of fhis class. The main purpose of the YAK-112 is to transport passengers, small cargoes and mail. The YAK-112 has no rivals in its applications as a liaison and business transport means in the industry, commerce and agriculture. Relatively low price and low operating costs combined with the wide range of application make the use of the YAK-112 airplane profitable in any sphere of activity.