Think you find that Swansea did & can accomodate up to 50 seat aircraft such as F50's and ATR 42's. There have also been 146's there & a Hercules on one occassion. Air Wales served Swansea & I used the SWS-CWL-LCY route on many occasions & was always full 50/50 if not more for Swansea over Cardiff. Yes the airport has gone down hill since Air Wales left but would be ideal for an operator with D38 or J41 size aircraft........