The search for the optimal design of passenger car is a matter of time. The solution to this problem and doing powerful design Bureau leading automotive companies and associations, and Amateur designers. Our magazine has repeatedly appealed to the topic. Today we offer enthusiasts autocostruzione two promising development of the Moscow engineers P. Zak and E. Rudyk.
Recalling the history of the snowmobile, realized how long ago began my fascination with construction equipment. Even in his youth (and now I’m already retired) received the specialty of a locksmith and mastered on his own welding business, other specialty Metalworkers. But knowledge of design, to tell the truth, “boast” could not, and to learn there was no place. Built on a whim any “grindaholik” on wheels and tracks went on them and on the road and in the snow, but neither the reliability nor beauty.
“Silver” the world championship of 1981, the same year the first place among the strongest athletes of the USSR — it is the best feature of the scheme boat built by the master of sports of the international class, the repeated champion and the champion of the USSR and the world by A. Tupikina. A similar model was helped by his colleague Vladimir Dovzhenko to be among the winners of the USSR championship in 1982 and set a new record in class-1.
What boats will not meet the competition. Some amaze with perfection of outline and finish, it seems that it is better not come up, ke will. Others want to pick up and “bring to mind”. But this, though done really skillfully, carefully and conscientiously, initially produces a strange impression. A small case with a nearly rectangular frames, a transverse rail with ridiculously small floats. Whether clumsy trimaran, whether the model is a replica…
There is an element of design, which can be found probably in any moving models. It is the bearing. Often a pair of “shaft — hole” presented in the form of passing through the wall of thin sheet metal or metal wire axis. This couple meet on the microplane in the system control cord the aircraft or in the nose bearing rezinomotornaya, and the boat, built by children’s hands, — the bearing of the prop shaft or hub of the rudder, not to mention the suspension of the microcosm novice automodellista.
In suburban areas, though small in size, usually have enough space not only for the vegetable garden and berry bushes, but I cultural grassy lawn. And he also needs care: every two weeks we have to mow. Pondering the mechanization of such mowing, paid I attention to is perched in the corner, an old floor polisher P-2. It’s almost ready based electrocoil a powerful motor 350 watts. I have set a goal to make the design such that it was possible to quickly assemble, disassemble: “translate” foot in the mower and Vice versa. And formulated the problem like this — equip P-2 circular knife and put on wheels. That is the main work consisted in the fabrication of the chassis for future mower.
“Manual labor is performed by machines!” — under this title was published in our journal materials from the all-Union conference VISKHOM named after V. P. Goryachkin (see “M-K”, 1982, № 8). The performances of the participants on the importance and necessity of development of means of mechanization of cute, the editors have opened a correspondence “round table” at the same time, we invited readers to send drawings and diagrams of their machines and asked to share the experience of their construction, manufacture, operation.
Wings, like aviation, has already appeared on the car. At first it was a triangular plane, similar to the fins of fish. The intent of the designers, like “architectural excesses” was to give swiftness appearance. Then, when the car began to compete in speed with the wind on the wings remembered again. Only now they were needed to help the car better “hold” for the road, push him to the ground. The fastest, now not only establish a plane, located above the rear part of the body, but the front of the front wheels to the track pribavlyaetsya small side wings.
Is there any reason to go into specifics slip “school” model, results of which did not even contain the cells in the table of records! If you think about the future, that is. Today we record events are not logged, tomorrow, and the theory of sliding automodelisme not yet developed by anyone, although microcontrolle subject to the General laws of physics.
What models of gliders was not in the sky above the sports airfields! Short-tailed side by side with these, whose stabilizer it seemed unreasonably far related from the wing, the search of the optimal elongation of the supporting planes of the transformed outline of the airframe in the likeness of a flying ribbon, brachypterous, such aircraft unit. A few years ago, athletes arrived to a common opinion. Although each scheme had its own advantages and disadvantages, experimentally found the best dimensions that satisfy the conditions of soaring in thermals, the flight in a calm atmosphere and in a strong wind. Parameters recognized compromise (wingspan 2000 mm, chord 145-150 mm, shoulder 700— 740 mm), provided smooth, very good results.