Most helicopters toys are known for breaking apart very easily and having less than desirable physics. Make sure that you compare products and have a test demonstration done for you before you commit to any helicopters toys for your children, as you will probably need a toy that is durable.
Make especially sure that the flying mechanism is sturdy, as this is where many helicopters toys break when put under pressure. Make sure that the helicopters toys fly if they are remote controlled, as many demonstrationists know how to compensate for the weaknesses of the toy and make it look better than it is.
How far can helicopter fly on a one tank of gas
No
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Depends on the purpose and make of the helicopter.
It depends what you mean by the term 'ultralight' ! If you mean a scale model of a helicopter that you fly by remote control - no. If you mean a full-size helicopter you actually sit in to fly - yes.
The helicopter might not fly because the battery is dead and needs to be charged or because you have the remote and helicopter on different frequencies.
No. A helicopter is not faster than an airplane. A helicopter could fly at about 400-650 kph. But a plane could fly much faster than that.
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