. "1432.56" . . . . . "4/22" . . "1433.0" . "15.0" . . . "1524.0" . . "15.24" . . "1/19" . "Merrimack Valley Seaplane Base" . . . "MA2" . . "Water" . "Merrimac Valley Seaplane Base" . . "Merrimack Valley Seaplane Base" .