Originally Posted by
Arnie Madsen
The smaller the aircraft , the better electric works (drones etc) .... much larger and results diminish .... something to do with molecules of air on a small propeller at high rpm .... compared to larger blades at lower rpm. (small works better).
Bad example. Electric drones only work because customer is happy with 20 mins endurance.
Load them up to carry juice for the 3h helo pilots are used to and they'd not be able to takeoff.
Beef up engines, rotors and electronics so that they be ableto fly, you#d be back to square one,
having to add more battrey to achive 3h ... ad infinitium.
=> Li-Ion won't cut it, ever. If you want a combustion helo's endurance, that is.
As a 20 min toy they do extremely great.