Bee house

Cassette Beehive: Construction, Assembly and Care

Today we introduce readers to two such works, interesting above all because they address an area of home farming that is still only weakly covered by technical creativity: beekeeping. For it, club members of the Palace of Pioneers and Schoolchildren of the Bauman District in Moscow have created a very convenient original hive for use, Read more…

Micro motorcarts

Micromotosleds with the D-4 engine: design

Before introducing the material below, we’d like to recall a short note in issue No. 2 of our journal for 1979 — “Folding sleds.” The reason is that the author of both designs is the same — our reader from Kazan, E. Zakharov. His technical creativity was prompted by a little son who every morning Read more…

Fetching firewood with a chainsaw

Motonarts from a “Ural” chainsaw: DIY snow scooter

Winter in our northern parts is long. There aren’t many roads, and even those don’t manage to clear snow in time. That’s why it’s hard for people here to get by without snowmobile machines, especially when you often have to ride completely off-road (for example, into the forest for firewood) — right across piled-up snowdrifts. Read more…

“Cocoon” on the snow

Domodedovo aerosleds: layout, propeller, frame

At the end of winter in 1974, on snow-covered fields near the airport “Domodedovo”, an unusual machine appeared—something like the egg of a fairy bird Rukh, or like a gigantic cocoon. Leaving behind clouds of snowy dust, it slid over the plain at an impressive speed and easily overcame fairly steep climbs. Its maneuverability astonished Read more…

Small but precious!

KA-1 opposed engine with a disc spool valve

Choosing a suitable engine for aerosleds is a far from simple task. Series engines, for many parameters (in particular, specific power), do not satisfy amateur designers. That is why some enthusiasts choose a rather complex, but correct, path: to create motors of their own design using units and parts from series engines. The editorial office Read more…

“Sokol-2” — conqueror of Dombay

Delta glider «Sokol-2»: sail design & flight qualities

The best delta glider of amateur construction that took part in the «Dombai Peaks» competition in 1978 was recognized as the «Sokol-2». Its creator was V. D. Mikhailov, a Master of Sport from Leningrad, a well-known specialist in designing and sewing yacht sails. Therefore, his desire to use the latest achievements in sailing sports when Read more…

Simplicity plus reliability

Arfa snowmobile: design and main components

The simplicity of the “Arfa” design is probably unique. The vehicle has only six main parts: a frame with an engine, a rear axle, wheels, a ski with a steering rod, and a steering wheel. The snowmobile’s reliability and low maintenance match the very highest requirements imposed on a vehicle intended for autonomous runs across Read more…

With water in the… wheels

Ostapenko's three-wheel tractor-tug: all-terrain

Original and practical designs by the Vinnytsia resident Oleg Andreyevich Ostapenko clearly appealed to the readers of our magazine. After a Central TV broadcast “This You Can”, in which the editorial office plays an active role, and a publication in “Fotopanorama” (see “M-K” No. 1 for 1986) of some developments by a self-taught designer, many Read more…