Coaxial RC Helicopters - How Do they Work?
You can add the term, coaxial RC helicopter that he had heard and wondered what they were. The truth is, you've probably seen one or maybe even your own. They are the double-bladed helicopters you see out there, with two blades and no tail rotor. The first time I saw that I was just wondering, not just what the hell it was, but how does it work? Here I will tell you everything!
One of them, coaxial helicopters are hordes almost single-handedly brought backenthusiasts into the hobby with their ease of use. It's hard not to see one of them anymore, and the advent of the micro electric RC helicopters in coaxial mode has opened up the great indoors as a flying ground. Being a very stable in flight aircraft and usually ready to fly out of the box, the coaxial RC helicopter is the only choice indoors.
So how do they fly? The traditional helicopter setup of one rotor blade and one tail rotor is replaced instead by two main rotors, each spinning in the opposite direction. This eliminates the need for a tail rotor, as its only function anyway was to counteract the yaw produced by the one blade spinning in one direction. This makes the coaxial RC helicopter very stable, if a bit slow and unresponsive. It's a great model to learn to fly with, indoors or out, and can help one graduate to single bladed models later on.
The only drawback I find in some coaxial RC helicopters is that the two rotors have to be spinning at the exact same rate. In other words, the two motors have to in sync with each other, or the helicopter will not even lift off.
As always, practice safety when operating these birds, as they have two blades (which will hurt twice as much as one!) and should be handled will all the respect you would with any other RC aircraft.
Coaxial RC helicopters have brought many more people into the enjoyable hobby of RC helicopter flying. If you haven't yet managed to get your own bird into the air, don't wait any longer! Get out there today!
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