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| The EP425 falls in the same category as the Hirobo Lepton which is the pioneer of the 425mm blade size helicopter. My prediction is, all major manufacturers will have one on their drawing board in their R&D department and they will be rolling out to the market sooner than you know it. The 425mm class heli will be more stable (as compared to the 325mm blade size) but the running cost will be significantly higher. Although I haven't flown one myself but I have the Hurricane EP550. The EP425 uses the same head as the Hurricane with a scaled down main frame. I don't think you will go wrong with this one. After all, GAUI has gone through so many revisions.
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