On occasions there are models that come onto the market that you see and you just have to buy one. One such model that I recently purchased is the Red Bull BO-105 CB 130X helicopter by Blade. This is an officially licensed model of the Red Bull BO-105 based on the Blade 130X mechanics with the addition of a four-blade counter-clockwise rotating rotor head. Obviously a model such as this was a thing of dreams only a few short years ago. In fact a model that would fly properly with a multi-blade rotor head was something to behold. But now it would appear that almost anything is possible and considering that the main rotor diameter is only 307 mm it is in fact a very practical model for indoor and outdoor flying.
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