Electric helicopters are much more difficult to control and are only recommended for pro flyers.
Hang Gliders, Planes, Butterflies, birds... Umm O helocopters.. Hope i helped.. Or r u trying to be funny?
Planes are much easier to control and so will last longer.
Electric planes can have many uses to them ranging from just recreationally flying them to races, as well as reenactments of wars. http://www.xenonproject.com/rc-airplanes/electric-planes/
Planes are not necessarily better than cars - they provide a totally different function.
air traffic control
Jet planes can be of many types and some perform better than piston planes.
model shop
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Radio control planes were before RC cars.
With the exception of certain jump jets, helicopters can land easier than planes and better maneuverability. Planes are much faster and can carry stronger air to air weapons or bombs, but helicopters have better air to ground precision weapons. Helicopters are better for ground force support. helicopter requires less space instead of planes.
You can buy remote control planes online at a number of places. Examples include: banana hobby.com; elitemodelsonline.co.uk; rcuniverse.com and rchobby-avenue.co.uk.
They each have their purpose.