GIANT FROM ITALY

Categories World of models

GIANT OF ITALYRC model airplane, provided in this publication, it is highly unusual for the national school of design. First of all it is established in accordance with more and more of the fashion for Maxi models (it is appropriate to recall that the rules of competitions of the International Federation of air sports is not the first year there is a subclass supermystery models). In addition, its overall design matches popular today modelers orientation on the old стиль1 when models are more like genuine planes 30 years, rather than a pure sports “shells”.

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ONCE AGAIN, THE “PISTONE”

Categories World of models

ONCE MORE ABOUT THE

Article V. Minakova, “Secrets of the new “piston”, published in the “Modeller-designer”, No. 12 1994, aroused great interest among rocketmodeler. It is available for the first time in a popular form expounded basic principles of development and manufacture of gas-dynamic starting unit (GDU).Today we can offer the attention of randomdevice the research summary starts with DGG athletes from the Chelyabinsk region. This report contains calculations of the dynamics of the acceleration of model rockets weighing 230-290 g engines with a total impulse of 20 to 40 N – S. the Authors first examine the effect of parameters where the speed of descent of the model. And the practical value of this material is that the results of the lengthy calculations are given in easy-to-use form.

SARATOV “THE LANCERS”

Categories Design

SARATOV

Has become a matter of habit the appearance of the next articles on the subject of electric mobility. No wonder: in the USA the production of electric vehicles is 1/5 part of the total production of passenger vehicles. And in Switzerland, everyone who wants to buy an electric car is allocated a loan of 5000 Swiss brands.

ENOUGH TO BLOW

Categories Good recommendations

In the holes drilled in a wooden tube in the concrete wall, there is always a lot of sand and dust. To remove them will help plastic or metal tube by simply inserting it into the hole and how to blow into it (but mind your eyes!). S. DOROFEEV, p. vokhtoga, Vologda region.

THE ROCKET PLANE, BRINGING PRIZES

Categories Aviation

ROCKET, REWARDING

For the past three years an enviable stability in the class 84В shows Moscow racemode-sheet O. the ravens. It was not the case, so he did not became the winner. So the next championship of Russia, held in Orel, Oleg took the second place. To a large extent the key to this is the reliability of sports “projectile” rocket plane. N addition to the model, there is absolutely oryginalny automatic forced landing. I hope that this design will interest our readers.The proposed model is a bright representative of the so-called “Moscow” scheme raketoplana. Fuzuli — tapered beam of plastic. Its manufacturing technology Tenova. On the mandrel of variable cross section with a diameter of from 4 to 8 mm is wound first single steklotarny layer with a thickness of 0.06 mm, then the first layer of carbon fabric with a thickness of 0.12 — 0.14 mm and the second, just a length of 160 mm. then applied another two layers of glass, all carefully vyshkurivaetsya. The weight of finished beam is obtained in the range of 1.5 g.

TRANSATLANTIK IN MINIATURE

Categories World of models

TRANSATLANTICA prototype of the proposed model-polyopia was a unique motor speed the ship Des-triero. Built by Italian club “Costa Smeraldo”, it was intended for a single purpose — to beat the speed record for transatlantic crossing, owned since 1990 no less unique boat Hoverspeed Great Britain. Great work on designing and developing unique vessel was done by the Italians with success: Destriero has passed the way from England to new York in 58 hours 34 minutes and 50 seconds, thus putting a new world record.

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TRANSISTOR – LIKE A TUBE

Categories Devices helpers

ULF bass reflex on one first transistor. Numerous calculations and experiments to create powerful high-quality low-frequency amplifier has led me to believe that the most promising way to the design is to use a phase inverter on one first transistor. It is curious that such amplifiers could be forty years ago, but this has not happened due to a number of reasons.

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