A 747 wouldnt need a fuel stop to go to SFB. The TCD 747 makes the journey weekly for CWL with its short 2392m runway, a service is plausible from NCL on runway length at all with only a 40m shorter runway. Isnt it? I have little knowledege on local traffic to SFB but iit certinaley has a larger chatchment area than CWL!