Many readers, building a snowmobile and a boat with propellers, in his letters to the editor are asked to tell how the variable-pitch propellers and what advantages they possess. In response to that request, the published material prepared by the consultant of the public KB, “M-K” on snowmobiles I. N. By juvenalian.
I live in Krasnoyarsk region. I have my own house and a small farmland. Every spring, homeland is the garden, I wondered how ease is to mechanize this hard work. So we decided – we need to build the motor-plow.
Invented and built unusual to our eyes the car of the students of the Moscow automobile and road Institute N. Belov, N. Dubinin, Yu Medovikov, A. Ortega-Gil and O. Khokhlova, under the leadership of Professor A. Narbut. In may 1983 they moved their offspring to the street, right on Leningradsky Prospekt. Drove along the facade of the MADI. The reaction of passers-by was clear — a genuine interest.
The basis of the motor taken screwdriver “Leader”. Seals (2 EA.) taken from AUDI: take a piece of tube that was part of it seals, removed the cartridge and turned the only piece of hardware under the internal size of the seals and fastening screw. Screw homemade 280х70 mm, bent in the vise and drilled more or less on the eye as a flange for one screw. When dressed flange with seals on the axle, wrapped with any fabric and impregnate any paint in several layers. Bushings on a “leg up” – saylenbloki with “Fields”, inner tube. At hand was only the welding, so everything is cooked. The second screw was made by gas welding from sheet metal s of 0.5 mm is bent on the pipe hub, and the blades are soldered bronze.
Compactness, maneuverability and good traction — the undoubted advantages of the one-wheeled tractor created at the station of young technicians in the city of Novotroitsk. They managed to obtain, using the unusual tillers layout of the “wheel — motor”, which provides a minimum unit size, and ease of transmission.
A sack and a canvas kitty (bag with a round bottom) size 550X1400X1450 and 250X1400 mm — that’s what turns the Dinghy, if it is dismantled and Packed for transportation. Compactness has been achieved by making the hull three-piece. Each section may be invested in one another as the well-known “dolls”. This feature fundamentally simplifies transportation of the vessel and allows city residents to keep it in the apartment or on the balcony, even repair right in the room. But overall body length is impressive, more than 4000 mm and width 1400 mm. On this Dinghy you can take hikes of the day off and indulge in tourist travel, to swim in shallow water, Wade in the reeds. And although the contours it is designed for light wind and sailing with a full load, capacity of the Dinghy (about 300 kg) allows to accommodate a crew of two to three people, it is well withstand a wave height of two feet and wind speed in the gusts of 4-5 points.
“Eaglet” designed and built in a circle “Young technician” Vitebsk oblsud. It is intended for initial 0бучения driving preschool and primary school children in avtogorodok. Organically combining the advantages of map and bike “Eaglet” has good stability and handling, good speed, and also involves simple design, and low noise.
How easy and looks elegant sailboats on the water! Racing “the Flying Dutchman” and “Dragons,” recreational tourist “Gonna” and “Nephritis”. And here on the coast they lost these attractive qualities: even the rapid windsurfer — the smallest of them turns into a heavy Board, which is difficult to carry, inconvenient to carry, and most importantly, do not know where to store after the summer season. As for their construction, even the easiest surfer to make yourself is not everyone’s strength.
For the qualitative and rapid painting using airbrushes and spray guns, for many other works in the home Studio suitable table mini-compressor which can be assembled from the compressor unit of the refrigerator. Moreover, it is not necessary to use the new host is quite good and with a clogged pump valves. The main thing – would be a good motor. And you can check it easily before disassembly – using an ohmmeter, measure the resistance of starting and working windings (respectively 5 and 20 Ohms).
Do not rush to dispose of old vacuum cleaner: the motor will serve to drive crusher — indispensable assistant in the preparation of feed for poultry and other domestic animals. The principle of operation of the devices is the same as the electric coffee grinder: swivel high speed metal plate — knife slices through the grain for as long as their value will not be less than the mesh size.