Electric RC Helicopters continue to experience the strongest growth segment in the RC helicopter hobby right now.This of course is due to better battery, motor, and micro electronic technology that was not available even a few years ago. For all the reasons outlined in the Best RC Helicopter Power section, growing popularity will continue.Don't think electric RC helicopters have caught up to & surpassed nitro in terms of performance and better power to weight ratios? Well, watch Bert put a SAB Goblin 700 through the paces (same size as a larger 90 sized nitro powered bird). Very Impressive!
Electric RC helicopters are now also the fastest RC helicopters with some reaching upwards of 300 kph (190 mph). These "speed specific" designs such as shown above are built for one thing and one thing only, setting speed records.The tall shape of the canopy covers as much of the exposed mechanics and rotor head as possible. Likewise these speed specific electric helicopters are very thin in width making them very "slippery" to the air.
Not being constrained by bulky engine, fuel, and exhaust systems, along with many electric motor placement options, allows electric RC helicopters to take on some stunningly streamlined & beautiful designs as shown above with the exotic looking Takumi 700CF. It wasn't all that long ago I swore I would never fly an electric collective pitch electric RC helicopter. However, once I flew a proper lithium polymer (LiPo) powered one, I was instantly hooked on electric flight.