In the summer of 1981 in Moscow took place the traditional competition for experimental model airplanes. Today we introduce you to models — winners of these competitions. Student A. Bobrov from the city of Khimki (Moscow region) constructed a model glider “flying wing”, which showed at the competitions best results. Over five rounds were demonstrated following the duration of the flight: 81+16+28+180+130 = 435 C.
The flight weight of the model is 419 g, wing area is 32.5 DM2, the elongation is 12.5. The glider is equipped with an air brake original design. Two flat plate in flight pinned to the fuselage in the folded state is retained by the thread, located in the rear fuselage. Before the start of the cord is designed for three-minute burning, ignited, and the model is flying. After some time the timer is triggered and the rubber backstay mounted brake plate perpendicular to the oncoming flow. The result is a sharp decline in the model. The use of this system at the competition prevented a truly dramatic for the designer the situation, when the model is “intended” to fly to the opposite Bank of the Moscow river.