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.
IN THE RACE – MNOGOYARUSNYI
Someone in snowfall joy, but not the wipers. Armed with shovels, they morning twilight intrudes on the hard watch. Before the snow raked wooden or plywood shovels now — dural, wide. But to clear the sidewalk could not be soon.
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.
When I opened this, the most usual door of the model apartment I was not in a normal hallway, and… However, in order. Inside the door was as if hammered together from thick oak, the dark time of the timbers, caught blued loops with zip ties. From the right of the entrance two narrow Windows streamed the light of day, Aza patterned glass lurks some kind of “medieval” landscape… In the wall between the Windows a mirror in a frame of beaten copper.
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
The electronic device described in mi readers, you can install on the toy, equipped with a separate drive for each caterpillar: tank, lunar Rover, Lunokhod. The model moves with headlights on in a darkened room, and set PA her the photodiodes capture the reflection of the headlights from obstacles. The appropriate commands to the drive engines on the basis of the received data takes the logical unit. Here’s how it works.
Each individual Builder wants his house was not only beautiful it’s durable, but cheap. Design and materials of the walls is about a third of all costs. Is there the possibility of saving? I propose to make the wall monolithic, lightweight concrete-filled; the role of the formwork perform asbestos-cement sheets, they also then have to serve as a lining. The cost of these walls is lower than the brick, and the use of lightweight aggregates (sawdust, slag, reed) will improve their thermal insulation properties. In addition, they can be more subtle and light. In the end, will reduce transport and construction costs.