Poor mans area ruling worx too.=thanks Goldschmied aerodynamic (rear part of fuselage compensate nase drag)
and extended laminar flow =
CELERA 500L have extra high fuel (energy) efficiency !
Can the plane Celera 500L be eight times more fuel efficient than a jet of similar size and capacity?Celera 500L (see Otto Aviation site for more details) is a plane with a single propeller powered by a piston diesel engine. The constructor claims it is 8 times more fuel efficient than a jet of ab...aviation.stackexchange.com
=IFF hybrid drive ???