Flying Remote controlled helicopters, or ‘RC helicopters,’ is a hobby enjoyed by a large community of devoted enthusiasts. The vast amount of different models and parts and competitions has giving rise to large culture of collecting, building and competing. But many remain unsure as to what RC helicopters actually are and how they work.
They are small, model versions of helicopters, with miniature motors running on fuel. They are controlled by a pilot from a distance via radio signals. These are not to be confused with RC airplanes, which are aerodynamically very different and are built to function very differently because of course the RC helicopters use rotating blades to fly.
There are multiple types of RC helicopters, with various basic designs. For instance, the latest helicopters use a design known as ‘collective pitch’ (the ‘pitch’ refers to the angle of the blades.) Collective pitch is a design which has the extra function that the pilot can control the angle of the blades. The pilot can change the longitudinal angle of the helicopter blades whist they are flying and rotating. This gives the pilot much more control over how high the helicopter can go, but also makes it more difficult to fly. Alternatively there is the ‘fixed pitch’ design, which is recommended for beginners to remote controlled helicopters. Fixed pitch RC Helicopters keep the rotor blades in a fixed position, so the angle of the blades cannot be controlled by the pilot. This means there are fewer things to worry about when controlling flying the helicopter, so they are generally much easier to fly. RC helicopter pilots refer to the speed with which a helicopter increases its height as ‘lift.’ With fixed pitch models, instead of changing the lift using the angle of the blades, pilots use the speed of the blades. The faster they rotate, the greater the lift. However, there is a consensus amongst enthusiasts that most complex models, with ‘collective pitch,’ are acrobatically superior.
There are a few popular RC helicopter enthusiast communities online, where helicopters, spare parts, batteries, fuel and startup kits can be purchased. They also provide advice about various problems people may encounter when building or piloting a Remote controlled helicopter.
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