Re: Short and sweet.
I think physics is stacked against it, both regarding sound and energy efficiency.
If anything I think commercial aircraft speed has gone down the last decades, ever so slightly. It saves a bit of fuel, and with all the time wasted at the security circus anyway who notes?
I have tried to calculate the door to door average speed from my mum's in DK, with train to the airport, change of plane somewhere (with 1h connection), to here in the Algarve. In several cases it was less than 200km/h. Any private jet could at least double that, all included.
Biting the hand that feeds IT
