It is impossible not to admire the rapid slide on the water surface caught wind of the windsurfer, or at least a dizzying descent from the rampant ocean waves athlete on the other Board, resembling a wide ski. Both of the sports projectile at a fairly thin shell of the hull have a fairly soft filling of foam, so damage to this boat is worth nothing — even enough it doesn’t blow. However, to plug the “hole” so, as advised by the Hungarian magazine”, Earmaster”, is not particularly difficult. The proposed method is also interesting because it can be applied in other similar cases, and similar structures.
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For most days of the summer holidays — a time of carefree family holiday, which many spend in the country, the plot or in the garden. At this time, each camper tries to make up for “lost” during the year, the fresh air and sunshine, enjoying them in full measure. And not only in trouble in the beds or plantings.
Is it possible nowadays to build your own plane? Tver aircraft enthusiasts Eugene Ignatiev, Yuri Gulak and Alexander Abramov answered this question in the affirmative, creating a winged single machine, later named “Argo-02”. The plane was successful: successfully flew on all-Union competitions, was the first winner of regional review-competition of Amateur aircraft in Yaroslavl. The secret to increased popularity of “Argo” Amateur aviators not the designer or the technological refinements of designers, but rather – their traditionalism. The designers managed to achieve a successful combination of waste over many decades of design methods of wooden cars of the 1920-ies and 1930-ies and modern aerodynamic calculations of aircraft of this class. This is perhaps one of the main advantages of the aircraft: its production does not require advanced plastics and composites, rental of high-strength metals and synthetic fabric with the pine timber, some plywood, fabric and enamel.
Today is a difficult time, many live by the principle: “necessity is the mother of invention”. Not enough money, we have to get out, remembering or inventing all sorts of homemade tricks.
Unlike analog, in the boat “Victoria” from St. Petersburg to create an air cushion and propulsive forces (thrust) uses an air screw. This allows the machine to move using both static and dynamic air cushion. The transition from mode to mode is performed by changing speeds.
The search for the optimal design of passenger car is a matter of time. The solution to this problem and doing powerful design Bureau leading automotive companies and associations, and Amateur designers. Our magazine has repeatedly appealed to the topic. Today we offer enthusiasts autocostruzione two promising development of the Moscow engineers P. Zak and E. Rudyk.
Recalling the history of the snowmobile, realized how long ago began my fascination with construction equipment. Even in his youth (and now I’m already retired) received the specialty of a locksmith and mastered on his own welding business, other specialty Metalworkers. But knowledge of design, to tell the truth, “boast” could not, and to learn there was no place. Built on a whim any “grindaholik” on wheels and tracks went on them and on the road and in the snow, but neither the reliability nor beauty.
Now suburban suburban areas are very popular green lawns, pleasing to the eye a beautiful grassy carpet. However, they require proper care and maintenance, the complexity is almost equal garden chores: the lawn need mowing, watering, update affected the economic activities of the place.
