Some interesting notes:
- Nasa's aim has been to try to get costs down to $2 per aircraft mile - still higher than the average $1 cost of a business class fare, but if an air taxi can save a roving executive time, that surplus cost quickly starts to disappear. And if two people fly, the figure immediately halves.
- ...But the price tag is most unlike a big passenger jet - just $1.3m per plane, a relatively reasonable sum in the industry.
- By using stripped-down airfields that are conveniently close by, air taxis would save 50% of time on an average journey...