Probably the majority of readers, modelers had to build a model microelectrophoresis. These are good motors, easy to maintain — put it on the car, hooked up the batteries, and you can experience the new design in action. But how well able to use the power of the motor depends on the manufacturing quality of the drive. First and foremost, from its driving member connecting the motor with the mechanism. The slightest imbalance mounted on a gear shaft, the runout of the friction roller or pulley, and the engine will not even crank gear. The origins of the errors most often lie in the landing accuracy of a leading element on the axis of the armature. As a rule, planting the diameters of the parts do not match, and you have to wind on the shaft threads with glue or pull on it cuts the vinyl chloride pipe. It is clear that to talk about alignment in these cases is not necessary.
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In this article we want to introduce you to one of the last successful boat designs intended for participation in endurance racing. It was created by the master of sports of international class V. Osadchiy, who took the class up to 6.5 cm3 first place at the USSR championship in 1983 with a score of 64 laps and first place at the international competition in the GDR with a score of 71 circle. Similar microtiter helped the master of sports N. Alexandrov to become the second in the match of the strongest athletes took place in Chisinau. New hull lines provide excellent course under difficult weather conditions, significant wave and wind.
Did you know that a lot of aircraft Amateur-built are based on BRO-11M – glider initial training famous Lithuanian aircraft designer B. I. Oscines. Very easy to manufacture and reliable in operation, designed on the basis of classical schools of design of aircraft of the 1930-ies, the glider won the sympathy not only of beginners glider, but Amateur aviators, who saw in the design of the BRO-11 M, and its elements useful for the creation of Amateur gliders and airplanes. While some used the scheme of the airframe as a whole, others copied the design of the wing, a third of its original control system… Word, BRO-11M was a kind of tutorial of novice aviators.
To the journal is receiving increasing numbers of letters from modelers who make their first steps in the class RC. And, as a rule, one request — publish a description of the glider or plane for the initial training. Increased attention to the units of this complex model aircraft class is clear — the domestic industry began to produce proportional radio control systems, and the achievements of modern radio electronics, in particular the emergence of new circuits, give the opportunity to build a good improvised equipment. Published drawings and a description of the “flying coach”, an interesting series of design solutions that allowed to create a universal multivariate training model. It is made entirely of domestic materials.
When designing the model of the catamaran, calculated under domestic motor KMD-2,5, revealed the need to adjust speed on the radio. Had to carve out two parts aluminum diffuser carb increased length and a rotating door. New diffuser installed instead of the original, so the dimensions of the parts included in the rear wall of the housing, to accurately duplicate the dimensions of the serial. The remaining proportions are random. Note that when performing the planting hole under the flap is necessary to provide a dense enough mutual fit of these two parts. A cross hole in the valve corresponds to the inner diameter of a diffuser in the open position of the ledges at the entrance should not be. The control lever is formed by filing a thin disk, machined integral with the valve.
What processing methods but use the young technology for the manufacture of shells of rocket modeling! The most affordable and waste — vikla CA on the blank paper cylinder, master, “the one receiving a novice can just a few classes. For more complex models, especially copies, it is necessary to use a metal mandrel, fiberglass and epoxy resin. To make such tooling without a lathe, you might need it and when processing fairings models.
Simplicity of design “Harp” is perhaps unique. In the car a total of six main parts: frame, engine, rear axle, wheels, ski with the steering rod and steering wheel. Reliability and simplicity of the snowmobile complies with the standards that apply to vehicles intended for Autonomous runs over a vast and desolate regions of the Arctic. “The harp” easy to disassemble and in the back of a truck or in the baggage car to transport to the launch site, and there is to collect hours. and a half and to travel.
The appearance on the competition models of sailing catamarans and trimarans was the natural result of the development of a very interesting class of ship models — radio-controlled yachts. First I gotorussia was built in our country in 1974 almost simultaneously by three athletes from Kiev, Valeriy Bondarenko, a Muscovite Valery Efimov and the author of this article. All mini yachts was created on the basis of requirements for models of class F5-S (with an area of 0.5 m2 sail). The best results showed catamarans. In the future, on the basis of their group Kazan modelers have worked a few designs, which already could compete with the traditional single-hulled yachts with moderate wind and have a distinct advantage with strong.
New simplified design of the tow hook works just as reliably as the best modern designs, providing easy control model glider when you search for updrafts and good acceleration apparatus for dynamic start.
In 1980, the sub-Commission on the rocket modeling of the FAI decided to introduce a new class of raketoplana S8E with a maximum mass up to 300 g engine with a total impulse of 40 n*S. Model of this class, created by Bulgarian athletes participated in the competitions and showed good results. Having the necessary materials, it is easy to make in the flying circle. The engine of rocket with a total impulse of 40 n*works for 10 s. To control the model can be used in compact