4 Air Spray A-26 at Red Deer Regional Airport, AB
The A 26 flew over 30 seasons with Air Spray throughout Alberta, British Columbia, Saskatchewan, and the Yukon and Northwest Territories. At its peak, Air Spray owned and operated 18 of the aircraft. Able to haul 900 US gallons of fire retardant and flying at a speed of 210 knots the A 26 was the work horse of Air Spray's air tanker fleet. I think all 4 A-26 are for sale, so here is your chance to own a vintage WWII aircraft.
The retardant tank carries 760 Imperial gallons (3450 litres) which weighs about 8700 pounds. The tank's two doors are independent and leak-proof and each side of the tank is divided into compartments so that the retardant can't start sloshing around in flight which would cause trouble. When the tank's doors are opened by the pilot, vents atop the fuselage pop open to scoop air into the system to force the slurry out in just 1.5 seconds which lets the retardant hit the fire in a concentrated force.
Red Deer Regional Airport
Canadian Airline Blog