The FAA requirement is just a sign-off by an instructor, JAA rules are nearly the same so it COULD be as low as say an hour. However in reality, most clubs won't let you take their aircraft without at least 5 hrs dual in a complex. 10-15 hrs seem an awful lot to me, especially when you consider the JAA ME rating is only 6 hrs....I would anticipate 5 hrs dual, with no previous complex time.
An Arrow (PA28R) is basically an Archer with wobbly prop and retractable gear, so I can't really see why it should take 15 hrs if you're used to flying a PA28...or any other single come to think of it....
Rgds
EA
