Model autogyro designed and built in the laboratory of the Aero modeling club of young technicians of the Siberian branch of the USSR. The author is a graduate of the class of technical physics and mathematics school Ilya Skiba. The model is made in Cordova. In this case adjusting it is easier than Svobodnaya. The design of the autogyro is quite simple. The fuselage, landing gear, empennage, engine mountings — as a conventional cord models. A three-bladed propeller creates lift, rotating from the incoming air flow, that is, using the phenomenon of autorotation. However, the number of blades may be three, four or more.
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“It’s time my childhood fell on the difficult post — war years, begins his letter to the editor M. I. Psarev. Toys we then did ourselves. Apparently, this brought me love design — all my life I’m not breaking up with tools, metal, wood and, of course, pencil and paper. Here came the second half of life, and the desire to rukovodstvu not quenched, but flares up sometimes with such force that you forget about everything”.
In the CSC-306 MAI constructed several devices with the power electrical system, but to talk seriously about the problem of creating a workable small elektroleta became possible only after supervising the Department has developed a unique brushless DC motor. It is characterized by light weight, high (95%) efficiency, and specific energy parameters 3-6 times higher than the corresponding characteristics of a known commutator motors.
Model airplanes still did not pay attention to a very promising engine, liquefied gas C02. But the simplicity of manufacture and operation make it much more affordable than compression and glow engines. In addition, it does not pollute the air and silent in operation. With this engine (Fig. 1) can operate a variety of aircraft weighing up to 100 g From one canister to siphon the tank (Fig. 2) can be refilled twice.
For many years since the entry into force of “Technical conditions” to build a home-made micro cars and sidecars the creators of these machines in their structures often used the main gear of the rocking rear axle and transmission from a wheelchair sidecars of various modifications. All the disadvantages of these mechanisms are stereotypically repeated in almost every home-made, significantly impairing their performance. Traced the pursuit of more utilitarian to fulfill this part of the design, almost nothing or nothing changing in the factory units, and parts and disguised all this slightly redesigned (compared to wheelchair) the body, fenders and other “decorations”.
Numerous experiments to create a map with the electric drive until now led to the emergence of machines, its high-speed qualities can become a training, not racing. After analyzing design flaws, we tried to create electrocat (Fig. 1). able to become a competitor to the traditional internal combustion engine.
The beauty of this glider, named “Tetra” (because of the shape of its frame), is that it is collapsible and place of training it is possible to carry in a bag or backpack. It weighs more than 20 kg. Frame glider — tetrahedron, assembled on bolts of duralumin or steel tubes. The mast compound, its elements represent segments of dural pipes with outer Ø 40 mm, stacked with pipe sections of smaller diameter. The lower part of the mast is integral with the frame Buer from the pipe Ø 50 mm.
…Control knob soft is selected, the glider can easily lift the nose off the ground and shoots up. There, on a five-meter altitude, where popiskivaet on planes fresh wind, we are now going to demonstrate what they have learned to parry the roll of the glider, deviation from course, it’s a “press” machine to the ground, find the optimal angle kupirovaniya, which is necessary for a proper take-off… everything in this free flight! Meanwhile, our glider… can’t fly. Installed it on the building, resembling a well sweep. And is, in fact, the layout. To make such a trainer in the club or at the station of young technicians is not so difficult. It will allow children, dreaming of the sky, to practice a lot of exercises necessary for mastering flying skills.
In the well-known encyclopedia even the last century “Industry and technology” in volume on “the treatment of fibrous substances”, which is a tree, it is said that “in the works for the division of the tree matters … splitting”. And further: “wedge-shaped tool extends the shared part of the tree; here the cleavage of the tree at a distance greater than the tool can penetrate”.
In such technical sports, such as motorcycle, automotive, karting, and beginner athlete and the more experienced master in competition or in training often have to drop out of the race due to technical defect of the engine, in particular breakage of the crank mechanism.