Model autogyro designed and built in the laboratory of the Aero modeling club of young technicians of the Siberian branch of the USSR. The author is a graduate of the class of technical physics and mathematics school Ilya Skiba. The model is made in Cordova. In this case adjusting it is easier than Svobodnaya. The design of the autogyro is quite simple. The fuselage, landing gear, empennage, engine mountings — as a conventional cord models. A three-bladed propeller creates lift, rotating from the incoming air flow, that is, using the phenomenon of autorotation. However, the number of blades may be three, four or more.
THE GYRO ON A ROPE
Numerous experiments to create a map with the electric drive until now led to the emergence of machines, its high-speed qualities can become a training, not racing. After analyzing design flaws, we tried to create electrocat (Fig. 1). able to become a competitor to the traditional internal combustion engine.
The beauty of this glider, named “Tetra” (because of the shape of its frame), is that it is collapsible and place of training it is possible to carry in a bag or backpack. It weighs more than 20 kg. Frame glider — tetrahedron, assembled on bolts of duralumin or steel tubes. The mast compound, its elements represent segments of dural pipes with outer Ø 40 mm, stacked with pipe sections of smaller diameter. The lower part of the mast is integral with the frame Buer from the pipe Ø 50 mm.
…Control knob soft is selected, the glider can easily lift the nose off the ground and shoots up. There, on a five-meter altitude, where popiskivaet on planes fresh wind, we are now going to demonstrate what they have learned to parry the roll of the glider, deviation from course, it’s a “press” machine to the ground, find the optimal angle kupirovaniya, which is necessary for a proper take-off… everything in this free flight! Meanwhile, our glider… can’t fly. Installed it on the building, resembling a well sweep. And is, in fact, the layout. To make such a trainer in the club or at the station of young technicians is not so difficult. It will allow children, dreaming of the sky, to practice a lot of exercises necessary for mastering flying skills.
In the well-known encyclopedia even the last century “Industry and technology” in volume on “the treatment of fibrous substances”, which is a tree, it is said that “in the works for the division of the tree matters … splitting”. And further: “wedge-shaped tool extends the shared part of the tree; here the cleavage of the tree at a distance greater than the tool can penetrate”.
In such technical sports, such as motorcycle, automotive, karting, and beginner athlete and the more experienced master in competition or in training often have to drop out of the race due to technical defect of the engine, in particular breakage of the crank mechanism.
Autonomous electric vehicle for urban master-lay is born in pain. The searches are in many countries and firms, and individual enthusiasts, yet Balk at the same impasse: power, drive. Design created by analogy with the used in production areas, being “dragged” on the streets, reminiscent of a fish out of water — they also “choke” from lack of electricity, the power required speed. Because the developers have to deal with existing types of batteries, the energy intensity which does not allow to use electric motors, similar in power to the internal combustion engines. Hence, not the same acceleration and ground speed, and the range obtained is very far from desirable.
Folding bike nowadays. However, its dimensions even when folded, not too small, and to keep it at home and even more to transport on the bus or tram is not always convenient. I set a goal to develop a convenient folding bike smallest possible folded size. I wanted it to be easily transformed into a suitcase size with the usual “diplomat”. I have to say, this was not achieved, but to construct a two-wheeled machine, which, after transformation to fit in a suitcase or bag with the size 650x450x150 mm, I still did.
This boat has always caused the attention of vodnomotornikov. Some were attracted to him emphasized the car appearance, painted on the sides of the wheels. Other interior comfort, decent speed, maneuverability and controllability. Well, hobbyists and tinkerers, in addition, was interested in the construction and manufacturing technology of the body, could not be better focused on work in the home workshop.
For rowing and sailing vessels of the middle ages was used cetarehwodie anchors-cats and the two-horned anchor with a wooden stock, like the Admiralty, which appeared in the second half of the XIX century. In Portuguese and Spanish caravels and Galiano, Dutch flutes, Venetian trabaccolo and other vessels anchor in the stowed position suspended and attached sling through a block under the bowsprit or primitives horizontally to plancher bulwarks, whose strength is in the area of the school has increased due to additional brackets. To lift the anchors on these ships are applied blocks, chain blocks, arrows, hand-windlasses and wooden bollards. Mistake is made by those modelers that are on the model of a sailing ship belonging to the period of the middle ages, doing crumbly and spire. History of shipbuilding proves that these devices anchor devices appeared only in the second half of the seventeenth milestone.