Many readers, building a snowmobile and a boat with propellers, in his letters to the editor are asked to tell how the variable-pitch propellers and what advantages they possess. In response to that request, the published material prepared by the consultant of the public KB, “M-K” on snowmobiles I. N. By juvenalian.
Public Design Bureau
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Another interesting application of the foam found young athletes – “fighters” from Omsk Kühtai. For several years, they are on the original foam models with motors are not only successfully fulfill aerobatic tricks, but also spend real dogfights. Suppose there is no such class in the rules of international competition, albeit not as fast and maneuverable lightest “trains” like real sports boytsovkn. But the “pros” they have more than enough. This is an opportunity to train in the gym and outdoors all year round, regardless of the winter cold, and extraordinary ease of use and “start” motors, and simplicity, and consequently, high maintainability models, and minimum flow abundant materials.THE RESCUE OF DROWNING
…the handiwork of drowning! This well-known phrase is the best suited to the device, developed by a reader of our magazine Odessa Shkolnik, Rodion Chernopole. It is intended for high-speed RC boat. These microglossary in training and at competitions tend to dive under the water and… emerges. The owner located after the model and get it. Well, if the water is warm and it is possible to save the sunken vessel, which spent at least a few months of hard work. And if not?SIBERIAN UNICYCLE
I live in Krasnoyarsk region. I have my own house and a small farmland. Every spring, homeland is the garden, I wondered how ease is to mechanize this hard work. So we decided – we need to build the motor-plow.RECUMBENT MADI
Invented and built unusual to our eyes the car of the students of the Moscow automobile and road Institute N. Belov, N. Dubinin, Yu Medovikov, A. Ortega-Gil and O. Khokhlova, under the leadership of Professor A. Narbut. In may 1983 they moved their offspring to the street, right on Leningradsky Prospekt. Drove along the facade of the MADI. The reaction of passers-by was clear — a genuine interest. Central television in the program “This you” gave the opportunity to millions of fans of technical creativity to see design students and get acquainted with its device. And for those who are interested in “MADI-BC1” more deeply, we offer the description and drawings, prepared by one of its founders, now a graduate student Yuri Medovikov.
MOTOR FOR INFLATABLE BOAT
The basis of the motor taken screwdriver “Leader”. Seals (2 EA.) taken from AUDI: take a piece of tube that was part of it seals, removed the cartridge and turned the only piece of hardware under the internal size of the seals and fastening screw. Screw homemade 280х70 mm, bent in the vise and drilled more or less on the eye as a flange for one screw. When dressed flange with seals on the axle, wrapped with any fabric and impregnate any paint in several layers. Bushings on a “leg up” – saylenbloki with “Fields”, inner tube. At hand was only the welding, so everything is cooked. The second screw was made by gas welding from sheet metal s of 0.5 mm is bent on the pipe hub, and the blades are soldered bronze.SOLARIUM FOR CUCUMBERS
The third year of the Soviet people are working on implementing the Food program of the USSR adopted the may (1982) CPSU Central Committee Plenum. And not only adults. A contribution to the national Treasury Affairs on improving the supply of population with food making pioneers. They grow new high-yielding culture in the school experimental plots, to produce various agricultural tools, building motorized means of mechanization. And the city guys were not inferior to the rural areas. The circle members autocostruzione of the Palace of pioneers and pupils named after Krupskaya Bauman district of Moscow made, for example, a greenhouse that is simple and available for any repetition in the technical circle. On how to construct the greenhouse, we asked to speak to the head of the circle of autocostruzione Konstantin Ivanovich KRUGLIKOVA.
IN BATTLE WINS DESIGNER…
The lightest balsa frame, powerful nitro engine made with your own skilled hands and is able to “pull” almost weightless Model in almost all its evolutions… Are models of air combat’s most experienced athletes. And the fights between them were so exciting a spectacle that everyone who saw one might wish to engage in this direction of modeling.ONE-WHEELED TRACTOR
Compactness, maneuverability and good traction — the undoubted advantages of the one-wheeled tractor created at the station of young technicians in the city of Novotroitsk. They managed to obtain, using the unusual tillers layout of the “wheel — motor”, which provides a minimum unit size, and ease of transmission.
THE SLEEVE ON THE SUSPENSION
To improve the performance of micro-motors, internal combustion modelers increasingly use parts from non-ferrous metals. For example, the cylinder liner can be made of brass, and the piston is of aluminum alloy. To such a pair worked better, mirror shells coated with a layer of chromium.









