Soviet fighter designed by Oleksandr Yakovlev design bureau, development of the Yak-1b design. Improvements in the design of the aircraft were aimed at increasing speed and maneuverability. First of all, the aerodynamics of the aircraft were improved by removing the protruding parts of the aircraft. The oil cooler inlet was replaced with two wing-base inlets, the tailwheel was retracted into the fuselage, and the antenna mast was removed. In addition, thanks to a careful analysis of the design of the airframe, it was lightened by 200 kg. The first prototype, known as the Yak-1M, was created in April 1943. Already the first tests showed a significant improvement in the flight technical and pilot characteristics of the aircraft. Mass production, however, was characterized by low performance and, as a result, production aircraft had reduced performance due to increased weight. For this reason, one of the UBS rifles was retired. After the introduction into Russian combat units in 1943 and the first meetings with German fighters, German pilots were formally prohibited from participating in battles with "yaks without a front radiator and an antenna mast." In general, the aircraft was rated very highly, although there were reservations about too weak armament, which did not allow to shoot down the bomber on the first attempt. A total of 25 aircraft of this type were used in the Polish aviation between November 1944 and February 1946. Yakovlev's Yak-3 aircraft was a single-engine low-plane of mixed or all-metal construction (at the end of the war). The wooden hull consisted of a welded steel truss covered with duralumin (in the front and middle parts) and fabric-covered plywood (in the rear of the hull). Wooden wings with a duralumin beam, sheathed with plywood. Metal frills. Horizontal wooden legs covered with plywood and linen. Control surfaces are covered with duralumin sheet. Classic retractable chassis. With retractable tail wheel. Technical data: length: 8.5 m, wingspan: 9.2 m, height: 2.39 m, maximum speed: 655 km / h, rate of climb: 18.5 m / s, practical ceiling: 10,700 m , maximum range: 650 km, armament: fixed - 2 12.7-mm Berezhke UBS machine guns and 1 20-mm SzWAK gun.
Paints and glue are not included.