Of course you have to take into account of the time which ATC may make you hold and line up and wait before take off and how busy the circuit is on your return...
..then once you get onto navexes, the time is much longer. On Saturday I arrived at the Club at 1300, and with flight planning, aircraft checks and briefing, off blocks at 1630, on blocks at 1815...then with refuelling the aircraft, putting her in the hangar, debrief, general chat with my instructor (as he's a friend) and locking up...I didn't leave the airfield until about 1945.
So expect to spend a lot of time at the Club. Personally I love it. The more you're around the club, the more integrated you get and the more you learn from other members
