With a slight rustle of the blades of the propeller model took to the air. Passed one circle, two, three. All this is familiar today in many circles of our country guys raise flying model aircraft with electric motors. However, some features of this device are forced intently follow him. Whether unusual for a rechargeable element wing — flaps, or confidence, a kind of reliability of the flight. After all, we are accustomed to the fact that the power of the motor just enough to keep the model in the air.
But here’s the completed base, finished the tenth circle. Probably followed by a “pipeline” — intermediate landing and subsequent takeoff, and then the boy gently put your model and turn off the power. But no! She suddenly roaring engine (if you can say that about sagadevan stronger than the electric motor, which could hardly be heard sooner), performs a loop, a true loop the loop! Applause of the audience, and “pilotage” she was indeed worthy of the name — confidently demonstrates almost all complex acrobatic figures.
To make a machine that helped not only the Golden hands of modelers, but also knowledge of fundamentals of electrical engineering and aerodynamics.
Work began on the project future elektroperedachi with the choice of engine. Mainly used to put motors type DK-5-19. Easy, resourceful, they made almost triple overvoltage. But this perekal made itself felt. Powerful sparking at the brushes, and a large operating current heated the motor so that the melted plastic housings of collectors and otpaivali album from the brush holders. Struggled with it, putting textolite instead of nylon and has been crafting brushes. But still power is not enough: easy model was made only horizontal flight.