The end of the 80-ies of the XIX century was for the Russian shipbuilding a turning point. The Navy finally became “steel”; changed the materials, machinery, artillery, ammunition, tactics. Gradually began to change the approach to shipbuilding programs: separate “model” ships have passed into history, because the creation of each of the “unique” require a lot of money, and the fleet strength of such loners has increased slightly.
INFINITE ROULETTE
To mark the distance sporting events, to measure the length of the building, land, any distance on the ground conveniently with the hand odometer. It consists of a small inflatable wheels from a child’s Bicycle, the axis of rotation of which nut-lamb attaches to the collapsible handle, made of ski poles, and the counting mechanism Read more…
Designers snowmobiles operating in rural areas, and most — often used parts of decommissioned tractor Puscuta PD-10 propeller systems for their cars. It is clear and logical: the engine PD-10 is widely distributed in agriculture, it is necessary to recast it we option is not the challenge. Accumulating the experience of operating planes with such engines, the designers achieve a very noticeable increase their performance by improving purging, selection of carburetors, etc. it is safe to say that at present, a single “rural” snowmobile engine, created on the basis of the PD-10 are the most proven and reliable machine. It should be added that in the construction of chassis, control systems, etc. in recent years also created a lot. According to the editorial, timely information about these updates can assist the novice builders.
Near the base camp in the district of Tsugaru passes along with the tourists, I have built mini-hydroelectric power plant with a capacity of 15 W and voltage 220 V. This is sufficient for night camp lighting energy-saving lamps or LEDs. Day also can charge batteries of cameras and camcorders that can connect a radio or tape recorder.
“Oriole” — so I called built for the son of the electric car. The design idea came to me about two years ago, and much credit for this journal “modelist-Konstruktor”. Several months of estimates, calculations, dozens of layouts, hundreds of paintings and drawings of the body has led in the end to be quite rational, in my opinion, the solution. In the process of development of electric vehicles important issue was the problem of using abundant materials, parts and components, and as it seems, I managed to solve it.
On the shelves of sports stores you can often see elegant double sledge for skiing the mountains, called “Chuk and GEK”. The sleds solidly constructed, brightly colored, very attractive in appearance, but… do not use special demand. We do not undertake to judge how good these sleds, what their shop offers, but after the installation of vasodilates D-5 and they, undoubtedly, will be a very interesting self-propelled machine (Fig. 1). Such a construction was offered by a famous Leningrad artist — N. Abramov. In our opinion, the use of sledge “Chuk and GEK” as a basis for creating various children’s trails in machine — sensible initiative. It should be noted that the possibility of their “motorization” is not limited to the offer, which did N. Abramov: in addition to wheel with spikes, can be applied to the screw or the propeller (in the latter case, it will microaerobic). Finally, why not try it instead of the internal combustion engine to set the motor power cable or contact wire?
