Low-pressure, large-diameter pneumatic tires are excellent propulsion systems for all-terrain vehicles even in the most difficult road conditions. However, when they work with modern high‑speed engines, they require a significant reduction of angular velocities by means of the transmission and, as a result, an increase in the number of gear stages, as well as in Read more…
Four wheels, an engine, and a driver’s seat. Such are karts—tiny sports cars that surprisingly quickly gained widespread popularity in all countries of the world. Thanks to their simplicity and accessibility, karts opened the way to motorsports for broad segments of youth. Karting—racing in miniature cars—became a favorite sport of schoolchildren. Recently, the kart-car got Read more…
The first furrow on his homestead plot was made by resident of Pavlovo-on-Neva village, Kirovsky district, Leningrad region V. I. Morozov using an electric winch in the spring of 1980. Having confirmed the reliable operation of the unit, Vasily Ivanovich sent its description to the editorial office, which was published accompanied by a comment from Read more…
It all started when we—a young childless couple—bought two “Kama” bikes and got into cycling. When our daughter was born, we faced the question: how could we all ride together? I made a small seat and mounted it on the rear rack. It served us faithfully for several years. But as our daughter grew, the Read more…
Is it not tempting to build a motorized plow whose construction has almost no welded joints! That is why the article “At the wheel of a veloplow” published in “M-K” No. 3, 1985—on how to build such a mechanism using the frame of a worn-out bicycle—drew a wide response. However, many letters received by the Read more…
The journal has already reported on the advantages of rotary valve gas distribution in two-stroke internal combustion engines («M-K» No. 11 for 1974 and No. 10 for 1977). Here are their advantages in brief: achieving the highest specific power and fuel economy of the engine, improving starting and simplifying the cylinder design (no intake ports Read more…
This powered paraglider (such craft are now more often called paramotors), developed at the design bureau of the “Eureka” amateur technical creativity club in the village of Torga, Yakutia, was named “Carlson-4”. The number in its name clearly indicates that this is the fourth variant of such an aircraft. Since 1985 we have accumulated considerable Read more…
Camber and toe-in of a passenger car’s wheels can be adjusted very accurately without going to a service station. You only need some basic metalworking skills and simple tools to make your own set of devices for this adjustment—simple and convenient to use. Consider as an example the VAZ 21063. The distance between the centres Read more…
Training on the simulator is part of a complex of organizational, methodological and technical measures of the Kaunas Hang Gliding Sports and Technical Club DOSAAF, aimed at improving flight safety, and is designed to master the skills of controlling hang gliders of any class. *** The design of the simulator is based on a device Read more…
The design presented here is a half-track motorcycle with a steering front wheel on a low-pressure tire and a driven track, intended for off-road travel—mainly in summer and in the off-season, in winter on snow (cover up to 25 cm thick), and also on ice and hard crust. The motorcycle’s capability is, in effect, “go Read more…
