On the waters of the Urals in recent years began to appear a catamaran out of foam. They are unsinkable, easy to operate, durable and simple to manufacture. The figure shows the design of this catamaran. Dimensions: 3750×1600 mm, plate thickness from 40 to 150 mm, the height of the float 200 im and a width of 400 mm. Weight of 1 m3 of foam plastic is about 20 kg. Plates are cut on a special fixture with a nichrome wire heated to 200-250°, or on a special machine, the design of which is described in No. 9 of the journal “modelist-Konstruktor” for 1971.
THE CATAMARAN OUT OF FOAM…
The entrance to the house I saw a boy pet of the twelve who, standing in front of Mr. he, gave to someone signals. All his efforts, however, remained unanswered. To login for some reason he hesitated. And from the open window came the sound of muffled voices, in a brightly lit room, something made guys and were clearly visible, glittering with fresh paint model airplanes.
(The end. Start at # 5 and 11 ’02)
Vacuum cleaner — large home hard worker: in addition to his primary duties, he can whitewash the ceilings, painting the car, spray the flowers. However, it is possible to “teach” to another profession, and fabricated a simple device by which you can “wash” of various carpets, placing them on the open plain.
The idea to use as a vehicle motor wheel is tempting. She became interested in members of the laboratory design of compact machines Cute Siberian branch of the USSR ninth-graders Sasha Titarenko and Vitaliy Molchanov. They were attracted by the compact device, no transmission and therefore no loss of mechanical energy in the intermediate links, that is, a higher efficiency motor wheel converting input electrical energy into mechanical energy and the transfer of the latter directly on the propeller — wheel.
According to the rules of the competition model rocket must use only during takeoff the thrust of a jet engine, and the descent of the lifting force of the aerodynamic surface. For performance of requirements it is desirable that during takeoff the shape of the model was close to the missile, that is, would have a minimum lateral area. This requirement is most fully correspond to the model raketoplana with variable wing geometry. Very promising, in particular, the use of all-moving front wing, which at launch is located along the fuselage and therefore has little effect on flight, and the transition planning rotated across, providing the necessary redistribution of aerodynamic forces.
In the third issue of our journal in 1968 published a description of the design of snake-gibralta for water skiers, created by the pioneer of this sport in the USSR — Alexander Casein. Over the years the enthusiasts of technical creativity — IV first skiers — produced a large number of these aircraft. Flying snake-gibralta for the boat or car for many has become a favorite form of recreation. There had also been a successful winter flying in the mountains. Muscovite M. Gokhberg, master of sports of water skiing, winter 1973/74 year was flying on a kite, accelerating on the ski slopes in the area Terskol in the Caucasus.
Svobodnaya “out of fashion”. Especially young modelers. What is the reason? Perhaps, in the length and lack of entertainment competition? And maybe the disadvantages of the method of manufacture of models of this type? In fact, if in the first year of studies in the clubs, build conceptual models, the second — planned complex fuselage model. That’s why the need to create a new expense of building a traditional class of models for modelers working in the groups the second year, is dictated by life itself.
Say, in the Urals during the difficult years of chaos after the civil war an artificer built a car where everything was wooden, even the engine. However, if the wizard so the echo legendary as Leskov’s Levsha, here the use of wood instead of metal in the most important nodes in modern machinery: rolling mills, tractors, cranes, harvesters — not a legend, but a reality of our days.
The idea is to make two-cylinder engine came to us with the son, that is, from want. In times of General scarcity in the economy was necessary for some vehicles to have the house and farmstead to provide those without something to exist person in the Russian hinterland is simply impossible. This is the wood, hay, building materials, which had to bring. Plowing and treatment of the infield in the required quantities without the technology, too, was unbearable.