The RC helicopter is the answer to everyone’s childhood dreams about being a cool pilot. But just like buying and flying a real chopper or plane, this one too needs some informed decision making and a whole lot of training. There are different products and models for different levels of users from beginner to expert, and there are products using many different technologies.
The two main types are categorized based on the power source, which can be a nitro (glow fuel) powered internal combustion type or one powered by electric batteries. There are others based on gas turbines and petrol, but nitro and electric are the two most popular ones. The electric one in particular has far outstripped the rest of the market.
The available flying time depends on the power source and engine size. So nitro powered engines provide flight times between 7 and 14 min, while the electric ones can stay in the air for anywhere between 4 and 12 min. The batteries used for the electric model are lithium polymer, which allows for a high current even though it is lightweight.
To reduce the weight and still maintain durability, the rotor blades and body will be a mix of material like fiberglass, carbon fiber, aluminum, plastic and wood. The whole thing comes in kits, which need to be assembled. The assembling has to be done precisely as per the instructions, otherwise the craft’s aerodynamics will go out of whack and there may be unanticipated problems.
But before that, a decision has to be made about which model to buy. The most important specification that a buyer needs to keep in mind is the number of channels. The radio needs to have at least 4 channels, in order to provide sufficient remote control. Each channel can be dedicated to one control such as the throttle or movements (up/down, left/right, etc.).
A lower channel count will make it that much harder to control the RC helicopter and make it do advanced maneuvers. The craft will then have to be brought back down and the controls will have to be adjusted manually. But there is a trade-off for more channels, in terms of a higher price and a steeper learning curve. For example, a 9-channel model will cost much more than a 4-channel one.
Beginners are likely to make some mistakes, and it might be advisable to buy a model for which spare parts are easily and locally available. Some models come with a training kit and spare parts, so beginners will find it easy to fix mistakes quickly and without any extra cost. Another suggestion is to find a model/company which offers a flight simulator so that the flight controls can be tested on a computer before doing it for real outdoors.
Don’t forget that this is a popular hobby. Many users end up liking it so much they tend to start upgrading to advanced models and start taking part in competitions. It is a challenge and sharpens the user’s brain and coordination skills, which is a good thing for children who need to be spending more time outdoors.
A radio-controlled or RC helicopter can provide many hours of recreational fun and activity. Learn how to fly an RC helicopter by hands-on practice with the controls.