Any idea what kind of missions N44U is flying?
I would say the plane is tasked with some kind of survey work, aerial photography / topography or resource management work. Some of the flights out of Bangor are interesting in that the plane travels cross country rather than circuits and crosses the Can / US border frequently.
link to Corp. using N44U:
link to FA flights:
flightaware.com/live/flight/N44U
link to picture:
azoresairphotos.com/foto.php … &size=1024
azoresairphotos.com/foto.php?codfoto=3517
azoresairphotos.com/foto.php?codfoto=3519
more info on the plane: