We have already talked about the agricultural arrangements, where the engine used electric mowers — rotary and shearers knife (see No. 9 of 1980, No. 2, 1981), plough on electric (see # 9 in 1981). Now offering new construction on the same basis — the cultivator of the soil. First, obviously, you need to explain why I designed the mechanism, the main purpose of which is plowing and this scheme — in the form of electrodyalisis. Why not go for more or less beaten path, taking up a walk-behind plow. First of all, it dictated the small size of the treated area and high density of planting tillers are simply not to turn around. Then had to take into account the weight of the guns and power, developing a medium amount of torque just 3 kg. With this machine will easily cope and teenager and woman, and elderly people.
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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.
The first flight of kites I started to build in 1978. Dozens of options are made over four years, helped to define the tests, experiments and subsequent revisions to the best form and arrangements of the wing, to learn the subtleties of the serpent and its behavior in various conditions. All this allowed the “Acrobat” to become a highly maneuverable aircraft with high aerodynamic characteristics. Its design is highly durable. Snakes can fly in any weather, he’s good and confident performs aerobatics in almost any wind (4 to 16 m/s).
Good motorists! Easy turn of the ignition key and the starter turning the crankshaft starts the engine. Of course, we do not encourage modelers to install an electric starter on the motors. We will focus on stationary unit intended to significantly facilitate the launch of the compression and glow model engines. He will provide you great help in training and in competition where the engine run time is extremely limited.
This double, the saloon car is undergoing testing. Its main units and components taken from production cars and motorcycles: engine power systems and equipment, as well as wheels from scooter “Tourist”; dampers front and rear suspensions from a motorcycle “Java”; a steering mechanism from “Zaporozhets”; rear brake of the scooter “Electron”.