Edmonton air tanker firefighting company flying high

An Edmonton company that has fought forest fires in Western Canada for more than 50 years hopes to spread its wings to more business in countries around the world.
Air Spray Ltd., bought in the early 1970s by the late aviation pioneer Don Hamilton and now owned by his daughter Lynn Hamilton, supplies the air tankers that drop cascades of colourful fire retardant or water to contain blazes until ground crews put them out.
The company has had long-term contracts with the Alberta and B.C. governmen