Originally Posted by soup is good food
They may find a niche where reliability and response time is important and a long range and payload isn't required, such as aerial photography and observation etc.
Range would pretty much be limited to around the trailer used to take heli to location! Maybe since it would use a diesel tow engine you could think of it as a land/air diesel/electric hybrid!
Helis are just so power hungry that any battery range is impossible. I'm quietly dissappointed Dave just can't stick to the Independant root&tip control blade, since this has real technical merit (as long as retreating reverse flow is accepted for counterrotator helis). Improving heli efficiency in all flight regimes is the future...
Mart