No, it’s not helicopters. Speech will go today about snakes. You ask: can l find something in common between these very different devices? It is possible… the fact that the serpent flies by created any element of the lifting force, be it habitual plate, box frame, covered with paper, or something else. In short — you need a lifting force. And for its creation can be as “something else” to come and propeller similar to a helicopter, or the wheel of Magnus. What kind of wheel? Explain in more detail.
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It is hard to imagine the competition without rocketmodeler launches RC models. It is, along with the competitions models-copies, quite an interesting spectacle, including from a sporting point of view. Of course, impressive for the beauty of the start of the model rocket—glider with a rocket motor and control its flight using radio signals.
It would seem, are incompatible. However, wound in a spiral wire can be very useful in the power system. Soft hose connecting the jet engine to the tank, sometimes become a reason for stopping the motor in flight. The root of all evil, it turns out, in that the fuel tube, the bending under the action of centrifugal forces acting on the cord model. You can, of course, apply and a rigid tube, but it is inconvenient because of the difficulties of installation. And so very quickly she “gets used” to inserted into her nipple, starting to pass the fuel through the connection.
The model, which will be discussed, applies to the class of high-speed RC models with electric motor total weight of over 1 kg (F1-E>1kg). According to the world Association of ship modeling and ship modeling sport (NAVIGATION.) it belongs to the class of radio controlled. This is the most numerous class of models denoted by the letter F and a numeric index. For model class F1 (F1-V2,5; F1-V5; F1-V15; F1-E>1kg) the basic requirement to perform a “flight” in minimum time: the winner of the race, which I sudomodel showed the least course time.
The fuselage is laminated entirely of fiberglass, applying resin To Tina-153. The bow compartment to the first frame filled with foam PS-1, which cut the slots for placing the battery and receiver on-Board equipment. Top compartment closed, except the lantern, the cap, providing protection elements of the radio from getting fuel. Servos are installed between the first and second, easier, more frames. Access them from the top when removing the wing from a hatch close to the same cover. Under the wing fairing is made powerful, providing a broad area of attachment of the wing. At the same time the keel is laminated from the aft fuselage. The lantern is made of organic glass with a thickness of 1,5 mm, is in the left side of the oval hole in it glued fiberglass curved pipe to the muffler. Reload the model is carried out using ballast attached under the steering servos.
The unusual design of bearing areas — that is the main distinguishing feature of the proposed model glider. Their advantage in ease of manufacture. The absence of cut from the sheet material of the ribs removes one of the major obstacles that usually stand in front of budding aeromodellers. Not once, not twice inexperienced hands of guys spoil tutu scarce mm plywood until it become satisfactory in quality ribs. And propilivanie grooves under the rail spars, stringers and edges too rarely at first. And the quality of the execution of this work depends on the strength, stiffness, and aerodynamic characteristics of the future model.
…From the hold model is extracted something like a spoon with fixed candle candle. He lights the match, the wick flares up with a bright flame, and “spoon” is lowered into the hold of the boat. The model is carefully placed on the water. The moment you hear the first click, followed by the second… a few More seconds, with rhythmic roar, resembling the sound of an internal combustion engine, “torpedo boat” slowly floats on the water surface.
One of the interesting types of competitions rocketmodeler are launching models — a kind of miniature missiles. In the sporting code of the FAI and our “Rules”-models are represented by two categories S5 and S7 — for the height and realism of flight. Today our story is about a high-rise copies.
Did you know that there is a model yacht, which with equal success can do and experienced athletes, and beginners? This sailing catamaran belonging to the class DH. The model is simple, adaptable, and to build it without the use of scarce materials. High seaworthiness and good speed catamaran gives the hull type hulls “sharpies”. You can get them in several ways — with the use of plywood sheathing and a set of longitudinal and transverse elements, with a slinky frame paper and cloth, or — most simple — Villenoy of fiberglass on the disc. Get acquainted with the first two.