Originally Posted by
GrayHorizonsHeli
these uber contraptions will not be quiet. They will be beyond annoying. And people will tire of the constant drone in very short time.
Actually these "uber contraptions" will indeed be very quiet - virtually silent, in fact. They will be as silent as room-temperature fusion power plants. The only sound you will hear is the sobbing and teeth-gnashing of the poor gullible morons who were so foolish as to invest their hard-earned cash in this imaginatory figment.
As others have pointed out - if the actual tasking was in any way feasible it would already be being served by light helicopters, flown by human pilots. Indeed it would have created a market for a new light helicopter with the simplicity of an R44, the masthead design of a B206 and a small integrated twin-engine power plant/gearbox assembly. Sadly that market has not emerged, so the concept clearly isn't viable.
PDR