“As a general rule, narrow-bodied airliners like the Boeing 737 or A320 have to leave a one-minute gap between each other or a two minute gap if following a wide-bodied airliner,” Brady said.
Is a two minute gap between flights able to provide any lift benefit at all? Especially at a mile every 6 seconds?
Will it be safe to operate at 12 second intervals?
Note that the FAA classifies the A380 in a new turbulence category "Super" along with the AN-225.
We never used time differences. We used distance separation. At the time, for a smaller aircraft, like a KC-135, it was 6 miles behind a jumbo, for the FAA, but for the USAF, it was 10 miles. It did not apply for a C-141 behind a C-5. In that case, we ran them close. 😁