Why would you be surprised that completing in a single night was allowed?
There's no limit on daily flying hours for the PPL course and associated ratings that I'm aware of, or is there?
It depends on the individual and what you're trying to teach them, but I find that 2 or 3 hours a day is an achievable amount for most trainees. That's probably plenty for circuits, but if someone's doing their "QXC" (if I can still call it that), with a dual checkout beforehand, then you can easily be up at 4 hours.
We've done a few single night NRs, works quite well if you prepare for it, get some sleep. Also I think it's best to try and get the 5 solo circuits done as early as you can, then finish off with the dual nav. Pretty much as TOO said. You can get the bulk of the briefings done beforehand.
Last edited by mrmum; 7th Mar 2015 at 19:10.
Reason: Correcting myself