On: Qantas wants to fly from Sydney to New York or Lon...

[will_hughes]

Even if you could, you can only go supersonic across oceans.

[_ugfj → will_hughes]

If you could go Mach 2-3 then going above the Isthmus of Panama makes sense. It is only 33% longer http://www.gcmap.com/mapui?P=LHR-pty-syd&MS=wls2 http://www.gcmap.com/mapui?P=LHR-SYD and almost all of it is over an ocean.

[rwmj → will_hughes]

Apparently they're researching how to reduce the sonic boom problem: https://www.nasa.gov/aero/centers_tackle_sonic_boom.html https://www.nasa.gov/centers/armstrong/features/flights_stud...