The growth of electric rc helicopters is strong right now. One of the factors is because of the improved battery, micro electronic technology, and motor that was not available a few years ago. Today, electric rc choppers have caught up with nitro rc choppers in terms of performance. Single rotor electric hobby grade helicopters which some hobbyists swore not to fly are not flying it. The noise electric choppers produce is increasingly attracting a number a number of funs. The electric motor is quite allowing the sound of rotor blades to be heard beating air molecules into submission. The larger rc helicopters such as the 600’s and 700’s have similar sounding turbine powered rc helis that makes them more popular and applicable to scale remote controlled helicopters. The convenience of electric choppers is not dealing with messy nitro goo, starters and glow drivers, engine starting and tuning hassles and shipping costs associated with fuel. The transition in the hobby of rc choppers is the popularity of rc electric helicopters and planes over nitro rc helis. The flight times of electric choppers are equal or even longer compared to nitro and gas models. Some of the electric choppers get 15 to 20 minutes of flight times on a single battery charge. The toy rc helis and electric micro coaxial rc helis is an introduction to a whole new group of people to a wonderful hobby of rc helis. The size spectrum for electric rc helicopters continues to be expanded. The small end of the spectrum consists of models like the E-flite’s Blade mCX2 with rotor diameter of over 7 inches. The larger end has rc choppers such as the Bergen’s e-Observer EB electric rc helicopter inclusive of the main rotor measuring about 80 inches in diameter and weighing about 20 pounds. The most popular hobby grade size single rotor collective pitch electric rc helicopters are the 400 class electrics. They have large size to be a good trainer even in 3D flight and small enough to be relatively affordable, choppers the more stability and ability to fly in wind conditions it offers. One of the electric rc helis that is bulk is the Align Trex 600. It has a rotor diameter of around 53 inches. It s size resembles that of a 50 or 60 size nitro helicopter. The design of hobby grade single rotor collective pitch electric helicopters overall is not different from that of nitro or gas. The construction and controls are the same. As a matter of fact, different manufacturers have the same model helicopter kits in both nitro and electric versions or supply conversion kits for electric rc helicopters. The main difference is they have electric motor instead of nitro or gas engine, have an electronic speed controller instead of a throttle servo, battery pack instead of a fuel tank. The main reason for electric rc choppers competing in performance with nitro helis is because of lithium-polymer batteries that are efficient with high power output and are less expensive.
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