each of the lend-lease aircraft of the monin museum deserves a separate story.his is the rarest and very iconic patriotic machine may 15 , 1942, the most difficult period of the war in our country , a jet plane took off in and named after the names of the designers alexander yakovlevich bereznik and alexei mikhailovich isaev b and like most of the first jet aircraft, it was a machine with a very difficult fate, the engine was specific, imagine 520 kg of kerosene and 135 kg of nitric acid. all this infernal mixture worked for only four minutes, during which time the fighter had to climb 6.000 m the engine after four. the work was turned off in the glider mode. he was supposed to destroy enemy bombers, as conceived by the designers. the fighter was tested with great difficulty on march 27, 1943 during seventh flight, an outstanding test pilot grigory yakovlevich bakhchivandzhi died. the cutting edge of aviation development is the real front line, this part of the exposition is dedicated to those who during the years of the great patriotic war flew over the front l