Recently outboard motor was held in high esteem by the water-tourists. However, in recent years a large part of the waters became inaccessible for boats with internal combustion engines. Once again had to recall the sail, to once again take up the oars — Many, however, are not satisfied with traditional propulsion with a muscular drive efficiency the same oars is not too high. No wonder at the time, the paddle wheels were literally pushed by a propeller.A CATAMARAN WITHOUT SAILS AND OARS
Recently outboard motor was held in high esteem by the water-tourists. However, in recent years a large part of the waters became inaccessible for boats with internal combustion engines. Once again had to recall the sail, to once again take up the oars — Many, however, are not satisfied with traditional propulsion with a muscular drive efficiency the same oars is not too high. No wonder at the time, the paddle wheels were literally pushed by a propeller.
“Competition motors”… These words you will hear today in any event — such was the struggle for victory in almost all sports classes. Ship-, auto – and aircraft modeling — all success is unthinkable without the unique materials and techniques for making homemade or high-powered serial superdigital. The exceptions are rare. Perhaps this is the only copy, yachts and aerobatic Yes “bouzouki”. And the pilots of modern RC UAV-unmanned aerial vehicle-the”acrobats” often complain about the lack of power of the engines!
Small model scale of about half a meter and weighing 20-30 grams at first glance give the impression of toys. But as soon as test flights, the opinion of inexperienced viewers immediately changing! It turns out that the apparatus according to the flight properties left far behind their paper predecessors. Running in the sky sharp throw hands, they are capable of rapid start, similar to the motor-take off the good timers.
Today we offer modelers an unusual material. If the majority of the publications was based on existing research and was devoted to the already realized results of the design search, then this article is for reservoir engineer V. Viktorova, as if in contrast to them, entirely composed of mere “ideas.” But how many times history of modeling, and technology in General, proved the viability and the viability at first seem “crazy”. Characteristically, they at first met with either resistance on the part of even the most experienced athletes (perhaps I ought to say not “even” but “especially”? After extensive experience of the wealth, but sometimes the “limiter” for anything that does not fit into the framework of experience), or complete disregard.
Floating timer… One of the most complex and controversial requirements to the technology requirements of the class of models of free flight. A complicated structure, powerful power plant, rise to dizzying heights after the launch. What kid does not want to build such a microplane!
Our magazine has already talked about year-round windsurfer, is able with equal success to move on the water, snow and ice (see “M-K” № 11, 1987).
Fighting aircraft of the American athlete D. Stubblefield at the last world Cup cordovil held in Kiev, many attracted by the simplicity of the design. The main material used for its construction — a light polystyrene foam, similar in weight and strength in the domestic packaging.
First of all, let me ask you a question: can a student-constructor of ship models do with their hands, without the help of a group leader, to create a good copy of a military ship? Most likely the answer will be negative.
A lot can be called the factors contributing to the decline in the popularity of automodelisme among boys. The problem is not only with good engines, but even with fuel for training, the problem of space for training korovikov or “black” issue radios to the most interesting kinds of models of class RS and similar… to be honest — all this leads not only to a drop mass, but also to the closure of a number of circles of automodelisme.