RESONATORY CLIMBS

RESONATORY CLIMBSToday I want to introduce You to the model class B1, having almost the same set of wings. This force diagram consoles with a transverse set of pine slats is fully justified, since for such models, the requirements of stiffness, processability and low weight is no less important than for a glider.

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HAMMER-THE MAGICIAN

HAMMER-THE MAGICIANIn my experience that after the publication in the journal “modelist-Konstruktor” home-made car (like mine in the January number for 1971) are the authors of many cities requesting them to share their own experiences. Now, during the crisis, when the possibility of homebrew is limited, I want to help interested readers advice: how, in practice, to restore or to produce the car body with the method of knockout.

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ERASER INSTEAD OF SODA

ERASER INSTEAD OF SODAThe different orders had to perform for the last time a Cup “Junior technician”, school № 81 of the city of Gorky. This one was especially unusual and interesting. Heads of school rooms of manual labor, drawing, and painting turned to our designers to develop machines for selling pencils and erasers.

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ON FLOATS AND WITH A MOTOR!

ON THE FLOATS AND WITH A MOTOR!There are few in Russia, popular publications, which members are loyal for… thirty years! The magazine are subscribers there. Muscovite Gennady Mikhailovich SMIRNOV — one of those who keeps the house binder “Modeller-designer”, as far back as 1966! By profession he is a driver. In his spare time he likes tinkering. A catamaran with a motor — his latest development, which he offers to all who wish to spend a holiday on the water.

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ASSISTANTS MOTORIST

ASSISTANT ENTHUSIASTDEVICE FOR CHARGING BATTERIES is a rectifier device with electronic current regulator (Fig. 1). A rectifier manufactured by bridge circuit of diodes V1 — V4 (Fig. 2), and the electronic controller a current amplifier transistor V5. The necessary adjustment select using the divider resistors R2, RZ, providing current from 4 to 6 And at a voltage of 8-15 V.

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“MIXER” FOR CONCRETE

In two nights I made a simple, but powerful concrete mixer, which greatly facilitates and accelerates operation in suburban buildings. I was building a garage from concrete blocks with dimensions of 400x200x200 mm, which formed itself with the aid of formwork and the concrete mixer. It is made of old barrels liters to 50-60. To assemble this, anyone can do it, using what is at hand. So I give only a schematic diagram and a description of the main parts of the device, and interested themselves transformerait them based on their capacities and materials.

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PUMPED MATTRESS, LACED – BOAT

PUMPED UP THE MATTRESS, LACED - BOAT…First was a call to the editor. Youth voice, which was heard simultaneously and joy, and pride, and impatience to share all these feelings said that we have built and successfully tested an unusual inflatable boat. Pulled out of the backpack, it is a rectangular panel: inflated “frog” becomes a raft (a large mattress); laced or strapped on end edges turns into a boat capable of taking three people and cargo. And all of this is made of a thin fabric “silverfish” with a rubber adhesive.

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