 Even one variant with a much more powerful engine was inferior to other aircraft that the OKB had under development and all work was terminated in 1947.The Lavochkin OKB was ordered to design a fighter using a single Junkers Jumo 004B axial-flow turbojet in February 1945.Much like their rivals at the Mikoyan-Gurevich OKB with their MiG-9, the OKB chose a "pod-and-boom" layout for their new fighter, based on advice from the Central Aerohydrodynamic Institute (TsAGI), although their design had a shoulder-mounted wing.