It would seem that you have the top of the "Tower" symbol centred at the airport location. I think would be more logical to have the bottom of the Tower centred at the Airport location.
Looking fwd to you extending your coverage to Ireland.
just found this flight radar and i understand it is still in beta stage,not too many planes on the map at the moment but i'm sure more will be added over time,looks like a great layout and easy to use, like most i'm a big fan of these flight maps and hope that this one will be a great sucesss,excellent stuff
I enjoyed testing Atlas today but I would like to recommend that you increase the number of airports and the zoom out level. It starts in Europe by default and the only way to get to the USA is to enter the airport code. I didn't see any US airplanes being tracked yet. Maybe that will come later. I also suggest you add layers for sat/radar weather, METARS and TFR's. I really like the tracking though. The live data, altitude and aircraft type is great. Although airspeed would be pretty cool too.