"It's quieter than a helicopter of the equivalent weight.
They've been trying for years to get permission to fly helicopters
into Heathrow for commuters out of the bankers' belt, and they
never can because they make too much noise. So this could be very
useful for connecting for example the five airports around London,
a flying bus going maybe 60, 80mph, maybe 100 mph."
Source: Inventor Pat Peebles, whose fan-wing
aircraft could revolutionize flight, in an interview with the
British newspaper The Independent. Peebles' aircraft looks like a
combine harvester, but can reportedly fly like a helicopter with a
lot less noise.