Its fun playing with radio-controlled toys, and it’s even more interesting, at least for tech geeks, to learn how their radio control airplanes, cars, helicopters and robots work.While various radio-controlled toys may operate a little differently the principals are basically the same. Four key parts make up most radio-controlled toys. The toys are controlled by a handheld transmitter that sends radio waves to the receiver. The receiver consists of an antenna, and a circuit board that receives the signals from the transmitter. In order to turn wheels, steer the vehicle and operate, propellers the toys have motors. Lastly, each toy must have a power source; usually in the form of a battery.
Some radio-controlled toys that use power sources other than batteries include: models airplanes containing tiny, gas-powered engines that turn their propellers, wind-propelled sailboats, and blimps that use helium or hot air to float.
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