The Domrachiev D-2 (Russian: Домрачев Д-2) was designed as a two-seater aerobatic glider. Its construction was carried out in the LENOAX construction workshops in 1934 with the aim of participating in the X National Sailing Competitions to be held that year in Koktebel.
The D-2 was designed as a high-bridged, two-seater glider with long wings and a high tail bar. The wing was braced by means of steel tapes that started from the wing intrados towards the landing ski and from the extrados towards a raised structure located on the longitudinal axis of the glider. This configuration made it possible to build an extremely light wing without detriment to its structural rigidity.
Another significant detail was the wing attachment to a vertical pile located above the head of the second crew member, which allowed excellent visibility and easy access to the cabins. This vertical pile had as a distinctive feature the possibility of being moved forward or backward in order to modify the aerodynamic centering of the glider.
The landing gear consisted of a fixed ski located in the ventral region of the nacelle, following the line of the glider axis.
The gondola with the tandem cabins also featured an additional luggage area with a capacity of 80 kg. In the rear cabin a shelf was to locate a telephone set that could be used for communication with the tug aircraft.
Built in Leningrad in 1934 and first flying that September, it participated in the X National Sailing Competitions, held in Crimea, where it was aero-towed. The acrobatic two-seater Domrachiev D-2 glider arrived at the competitions in Koktebel by air, towed by a plane.
D-2
Wingspan: 18.10 m
Wing area: 19.80 m²
Length: 8.05 m
Height: 2.68 m
Empty weight: 230 kg
Optimal speed: 61 km / h
Glide ratio: 20
Minimum descent speed: 0.78 m / s
Wing loading: 19.70 kg / m²
Surface of the horizontal plane: 2.82 m²
Vertical plane surface: 1.58 m²
Ailerons area: 2.10 m²
Wing elongation: 16.5
Accommodation: 2
All Aero 