This was superseded the next year by conversion of the type to jet power as the YB-49 of 1947. The design did not offer a great advantage in range, presented a number of technical problems and did not enter production. In the Soviet Union, the BICh-26, became one of the first attempts to produce a supersonic jet flying wing aircraft in 1948;[28] aviation author Bill Gunston referred to the BICh-26 as being ahead of its time.[29] However, the aeroplane was not accepted by the Soviet military and the design died with Cheranovsky.