Re:Cora – Kitty Hawk's prototype air taxi [video]
by sangnoir on Tuesday March 13, 2018 @10:57AM
(#16576611)
> I don't get how it is physically possible that this plane is energy efficient?
Energy efficiency is not all or none - it's a question of how efficient it is. Whichever way you dice it, the final result of the combination of energy density, thrust, weight lift, drag, is a plane is efficient enough to have a claimed range of 100km. If it were more efficient, it would have a longer range.
Energy efficiency is not all or none - it's a question of how efficient it is. Whichever way you dice it, the final result of the combination of energy density, thrust, weight lift, drag, is a plane is efficient enough to have a claimed range of 100km. If it were more efficient, it would have a longer range.