I was out there a couple of years ago and it wasn't possible then. However, the CFI at Um Al Quwain Flying Club (1.5 hrs drive up the coast from Dubai), a chap called Mohammed somethingorother was very helpful when I paid them a visit. I recommend you give him a call. The No is in the ubiquitous 'Dubai Explorer' book available all over Dubai.
You might find things have changed for the better by now (but I doubt it!).
J