AN EXAMPLE TO FOLLOW

ROLE MODELUnlike 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.

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“MOTORCAR” – THE CITY AVTOKRASKA

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.

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SNOWMOBILE “SNOWBIRD”

SNOWMOBILE 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.

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HOLE? LEAD!

HOLE? LEAD!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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STROLLER – “STOPTEXT”

Stroller, created by a private Moscow company OOO “Gradi Production” for people with limited mobility, able to down-climb the stairs, overcome thresholds, curbs, etc. to Do this let her slide out two pairs of cruciform pillars (the wheel at the same stop). When descending stairs are the leading front of the crosspiece and the rear Read more…

RECOVERABLE BATTERY DRILLS

RECOVERABLE BATTERY DRILLSAfter a few years of correct operation your drill is the drill started to “MOPE” – ends quickly charge the battery (battery), has to be frequently charged, and for this to interrupt your work. Losing battery capacity is inevitable with heavy use (depends on the amount of discharges-charges) and over time. By the way, if the drill is rarely used, the battery capacity is also reduced by itself (especially if it is stored uncharged), and a year later, may be reduced by a quarter or more. But in many cases, this occurs prematurely because battery other dangers face. So, it will inevitably deteriorate if you apply the tool when the ambient temperature is below 0°C and above +50 °C and in rainy weather and damp conditions, especially if spilled into the water.

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