We return to a universal small-sized agricultural machine WSM-2 “Cinderella”, designed and built by members of the primary organization of VOIR Seversk secondary school № 44, Krasnodar region (“M-K” №9 1980, №6, 1981). Designed for use on the school experimental plot, student production brigades, in the household plots, collective and state greenhouses, USM-2 can already carry more than a dozen kinds of operations. Nevertheless, Seversky, students continue to improve “Cinderella” — come up with new and new agricultural tools that extend its capabilities. Today we will talk about two such soil-cultivating aggregates: cultivator and mower.
Read more
Category high-rise models (S1) is one of the oldest in the rocket modeling. Since 1985, the sixth world championship, it is firmly “registered” in all world and European Championships. It should be noted that our sportsmen became the leaders in it, and of the eleven world Championships last twenty years became seven-time Champions.
Constructed this model of the Bulgarian athlete G. Lalev — European champion in class S-3-A 1979. The case is made from one layer of paper on the mandrel Ø 17 mm, and then covered with a thin aluminum foil. At the bottom of the fixed magazine of the Linden under the engine. Guide rings are bent from copper wire Ø 0.5 mm and glued to the hull with epoxy. Stabilizers cut from the balsa plate with a thickness of 0.5 mm and covered with aluminum foil. They are attached to the body butt on the epoxy. Fairing the balsa. The dome of a parachute with a diameter of 500 mm are cut from the Mylar film. Weight of model without motor — 10
Every year more and more intensive is the development of remote areas of the country that holds in its bosom untold wealth, so necessary to the national economy. Finding these hiding places of nature, there are numerous exploration party. They travel hundreds and thousands of miles of impassable tundra, cross bogs and swamps not freezing in the harsh winters of the river, deep snow.
Parameters and characteristics of the model correspond to the categories Ѕ8А and Ѕ8В. The diameter of the container under the engine selected in accordance with a cross-section of the sleeve (MRD-2,5-3-3 or MRD-5-3-3). We present several design and technological recommendations for the production model.
A failure to “stand” due to poor paint quality model. A crucial role when applying color coating plays spray. I tried them for twenty years are many, but none fully satisfy me. That’s why in the end had to undertake the designing yourself. Took a commercially available spray “Shine”, refined some details and making some new ones. But in principle the device fully to make yourself; all of its elements are quite simple.
Blessed be the day and hour when the person came up with the idea to put the cartridge for fastening the tool to the shaft of the motor. As a tool the drill has become a widespread tool. Why not just make a drill: drill, cut, grind, Polish, mix, mow, and plow … even now!
The elderly with a sense of humor remember the fun of skiing with the snow slopes on primitive boats — maskoobraznym the kruglyashi of frozen in the old city of wet hay. Or noisy slopes “small bunch” on a normal sledge, from which before it was shot shafts…
Considering the number of characterizing a working volume of cylinders of internal combustion motors produced by our industry, necessarily pay attention to the typical “failure”. Unfortunately, the motors of the class from 2.5 to 5.0 cm3 we did not exist. However, these engines required for flight training, high-speed radio-controlled model airplanes, scale airplanes. They can also be set on auto and advanced.
Still, as they say, don’t have time to dry the printing ink in the magazine (see “M-K” № 2, 2009) report from Pereslavskogo district of the Yaroslavl region, as a new message — about the craftsmen from the village of Andrianov, nestled on the banks of the river Nerl. At this time, art project, created by the efforts of Evgeny Polukhin, Boris and Alexander Selakovich, is distinguished by its power and more like a wheeled tractor, manufactured at an engineering plant. About scratch from Andrianova says our special correspondent Nikolay Vasilyev.