Electrolet cord with external power supply. In recent years, Kostroma modelers electrics are the most popular. One of the latest developments of the laboratory of experimental design syut city of Kostroma — training cord model aircraft, which combines such qualities as good maneuverability, durability, adaptability, low cost, modern design, the possibility of manufacturing in technical circles and in the classroom work in secondary schools.
Unfortunately, experience manufacturing propellers for the Amateur designs with rare exceptions not worth repeating. And perhaps the main cause of failures in the inconsistency of the parameters of the propeller with the engine performance. Often Amateur designers create too “heavy” in the wind against the propellers, causing the engine not developing full power and thrust is insufficient.
The proposed design is a four-section, three-man boat with load capacity of 320 kg In tourist trips she, being dragged to the Bank, turns in a fairly spacious “tent”, especially if you throw on top of a piece of plastic film. The boat is so simple that it can make even a person unfamiliar with shipbuilding and have only basic skills working with wood. To manufacture do not need special equipment and space, the whole boat is going in the room of a city apartment. It is made from widely available materials that can be Purchased in stores construction And household goods. The cost is Approximately 20-30 rubles (in passing it should be noted that for the registration of boats is necessary to keep all checks and receipts).
Kordovye aircraft models — the most popular among modelers. First among them is “air fighters”. And it is clear. The airfield may be a stadium, any forest or meadow flat area with a diameter of 40-50 m. One of the main requirements for such models, the simplicity of manufacture. Indeed, during the “air battle” inevitable collision and, consequently, breakdowns.
-Models of missiles doesn’t need to be. Do them and run interesting. Special, with nothing comparable to the excitement you experience the designers of such models, participating with them in competitions. In our country there are competitions copies missiles on high, and the realism of the flight. It must be borne in mind when designing future models.
When my grandson Grisha began to grow and stopped paying attention to previously favorite toys-rattles, the home began to notice that he started to show interest in different instruments and even mechanisms. Then I decided to make him a little electromobility-Quad, where in good weather you can ride on the street, and bad — Yves room. And not only that the child received pleasure from riding — mastering the driving skills he was introduced to technology, getting acquainted with its device.
In September 1931 under the Central Council osoaviahima of the USSR in the Bureau of air technology was organized by the Group of jet propulsion study (gird). Its first Chairman was the enthusiast of interplanetary flights, by F. A. Tsander. The group has launched a scientific advocacy of missile technology and was the initiator of the campaign, “the assault On the stratosphere”.
In the “M-K” have already talked about manual cultivator with fibronogen developed by members of the glee club VOIR (see “M-K”, 1976, No. 12). Further development of this design, in which muscular effort is minimized, was the tiller.
To run a series motor without special work can the Modeler of any skill level; not the high-speed engines. Because of the wide valve timing they sometimes play up all the short time allotted for training to start. That is why athletes try to use the starter, a mechanical device for the rotation shaft of the engine at startup.
