In the pre-war 1940 of these data could only dream of, and EDO Kocheri- hin engaged in search of non-existent replacement engines that IT would be able to fly to the specified terms to the spring of 1941 it happened to the aircraft installation of water-cooled engines AM-37, and the first version of the device remains in the project together with the under-managing M-90.Po its aerodynamic configuration of IT was pronounced a mid-straight-wing and spaced vertical stabilizer fins on the ends. This device has been proposed maximum mechanization of the wing and fuselage. The fuselage was not supposed to have protruding parts and add-ons to achieve maximum flight speed of 680-700 km / h. In front of the glassed part of the fuselage with a machine gun was ShKAS navigator arrow. Next it was placed gun compartment with four guns ShVAK and bottom of the replaceable unit, two 37-mm guns '11 P '(50 fn.) Or two guns 111P caliber 45 mm (40 fn.) Have been established. Two gun ShKAS were at hand in the back of the case. One machine gun was located in the upper opening, and the other - at the bottom of the descending cab. Lantern cockpit has also been moving in a vertical plane and could rise with the driver to ensure circular scan it. Falling cabin bottom Arrow was performed as ANT-7. The armament included another gun ShKAS located in a mobile pilot lamp for the protection of the rear hemisphere.