There are 7 departures to JFK alone from Heathrow between 8AM and noon today. I think there's about 20 flights a day overall. Had Concorde been in place, to re

There are 7 departures to JFK alone from Heathrow between 8AM and noon today. I think there's about 20 flights a day overall. Had Concorde been in place, to remove just 1 of those flights would require at least 3 concorde flights in that time period.