PRE-Flight RC Simulator is pleased to announce the release of the Sikorsky Firefly for free download. A close descendant of the Sikorsky Firefly may well be what we would be flying everyday to work or leisure in the near future. The Firefly will be the first electric helicopter in history, offering up to 91% efficiency (as opposed 26% on a typical internal-combustion engine), ultra-low noise levels, and zero-emission.
The Firefly is a demonstrator based on the old Hughes S-300 and fitted with a 190hp electric motor and powered by lithium-ion batteries. The expected endurance is only 15 minutes but will improve exponentially as new batteries (possibly lithium-air anodeless) push the flying time to over 3 hours and beyond. RC Helicopter flyers will note that the 15 minutes flight duration is about the same as the average electric RC helicopter - also running on lithium (polymer) batteries. This PRE-Flight model of this soon-to-make-history aircraft is full of accurate detail - even to the sound of the almost whisper-quiet electric motor.
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