swag writes:

This is actually a maneuver that's demonstrated and practiced very
early in flight training, so I'm sure all pilots and student pilots
have experienced this. But your calculations are fairly correnct--a 2
minute turn won't cut it. It's usually demonstrated with a 60 degree
bank turn. I'm not sure of the timing, but i'd guess 30 sec or less.

Sorry, I didn't notice the 60-degree part. Sixty degrees would be 2.7 Gs,
which seems high for a GA aircraft. If I'm not mistaken, this would allow a
360-degree turn in about one minute at 100 kts. Still, the wake would be a
thousand feet lower or so by then (assuming a 12-kt downwash).

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