OKB Chyetverikov

After completion of the Institute of the railroad and highway engineers, from 1928 he worked in D.P.Grigorovich’s OKB, where he conducted static and flight tests of training biplane MU-2.

Unemployedin 1933, Chyetverikov turned to the division for design for gliders and propeller-driven sleighs (OSGA) of NII GVF(Naoochno-Issledovatel'skiy Institoot Grazdahnskovo Vozdooshnovo Flota - scientific test institute for civil air fleet) with the proposal for creation of aircraft for the submarines (SPL and Hydro-1).

He began this work in 1933 when working at OSGA, but interest in the design was shown by Glavsevmorput (Glavsevmorput – chief administration of northern sea route), and the OKB obtained basing in Sevastopol for design testing where Chyetverikov was transferred to from GVF to GUAPV.

During the war Chyetverikov attempted to modify the design to allow reaching speeds of land-based aircraft on the MDR-6 seaplane.

After World War II Chyetverikov was asked to develop a jet bomber based on the captured Arado Ar 234.