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Most radio control helicopters are fascinating. The 1,400 revolutions per minute must not be an exact number, but amounts ranging around, but never reach the 1,600 above or below 1,200, and that to begin should we know in which area we are moving. In the course of the different chapters, whenever they refer to the 1400 revolutions, it is good to get an exact amount, but around 1,400, it is not necessary 100% fit now. Check out accurate specifics. You will be certainly amazed! The lift rotorcraft IN Everything mentioned above, introduces us to the most important concept to taken into account in radio control helicopters, its lift into the air. When we have before us a radio controlled helicopter, the first concept that we be clear is that the lift produced by the same wings that are spinning in the air a certain speed of rotation and at an angle. That speed is approximately 1,400 revolutions per minute and the blade angle of +5 ° or so. Also still get to keep the helicopter in the air, if we increase the rotor speed at 1,800 and diminish proportionately the angle of attack blades for example a + 3 degrees. And all for what? It's simple, to get different types of behavior of the helicopter in the air: training flights or flights quiet and restful acrobatics. The first is achieved with lower speed and angle of attack for the second. It's like the car going 80 km / h in third gear or going to the same speed. Until we are guided by the sound of the radio control helicopters engine to the rotor is rotating speed is very frequent in the uninitiated, go both above and below, with consequences. Thus, if we have more speed than necessary at first (1,400 rpm), our go too rotor revolution, with the consequent danger that entails, by the probability of the blades being thrown out by the strong centrifugal force generated as the helicopter simple are not prepared to support many overloads. This is just fantastic! By contrast, if radio control helicopters revolutions are very low, the helicopter becomes more unstable, precisely because of not having sufficient strength centrifuge to keep the blades in the same plane of rotation. With all this, it is important in early trials, have a tachometer, until they get used our ears, namely the sound itself that revolutions are flying.
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