[smachiz]

It's certainly niche, but NY-LON sees ~3 million non-connecting passengers a year.

If they can make it quiet enough to be supersonic over land, it's a lot more compelling. But even being supersonic for the atlantic crossing will shave hours off of most EU routes from NY.

I think the bigger problem is the time changes on a lot of routes make EU flights pretty efficient - you don't want the overnight flights to be shorter really (and I wish most were longer).

[wolverine876]

Maybe overnight flights should optionally let you sleep on the ground before/after the flight. Charge extra, you don't have to pay pilots or for fuel, park away from the gate.

You would need power without the engines but you could hook up a generator or a feed from the airport.

[mikepurvis]

Planes run on shore power at the gate anyway.

[dmurray]

Then turn on all the lights and wake you up for the preflight briefing!