Evergreen's 747 "Supertanker" releases about 20,000 gallons of water at the Edmonton International Airport on Tuesday. Photo: Bruce Edwards, Edmonton Journal

Evergreen is actively marketing their 20,000 gallon 747 air tanker. On Tuesday they put on another demonstration, this time at the Edmonton International Airport in Canada, making a drop along runway 02/20.

Evergreen is hoping to obtain an exclusive contract for the aircraft at $3 million a month. This will be a tough sell in Canada, where their strategy is small and nimble air tankers. In addition, the 747 could not be accommodated at any of the 14 air tanker bases in Alberta.