I know and was verified this past weekend that an entrant has 3 minutes to get airborne. In my case when I take a minute to get airborne I am pushing it a little to get down and stopped in 8 minutes. Of course with more practice I could really get patterns in less than 6 1/2 minutes. It is so relaxing when a I get a one or two flip start. This past weekend we watched guys fiddling with needle after a quick start. No worry about over run as several ran out of fuel entering the clover or during the clover. It is bad when I have to put down a 10 for the maneuver and 0 for landing also 0 for pattern. Remember fellows it is two laps between maneuvers. I would go for 7 minutes for ADV, EXP and OPEN. Beginner at the NATS is 5 1/2 minutes if I recall. Have fun, DOC Holliday