Well, "norm" There is no such thing and there aren,t any 'rule's thats the bottom line.

I fly as I posted in #2 and I do not meet any norm with students I prefer to keep the flights no more than eight minutes. Any more than that a regression soon sets in.

Now when I fly my eighty inch Playboy on its lovely 35AX with a three ounce tank I can count on a minimum of thirty four minutes. When I fly the Bridi Sun Fly Three I usually can count on two hours and twentyfour minutes and thats mostly in straight line more or less.

John