Ideal for transporting liquids by helicopter, FIRETAK Fireflyers are used extensively by the forestry service. These compact, flexible containers are made from a tough PVC coated fabric and can transport water, foam or potable water to remote locations. Because of the specific design, flight drag is minimized and the container remains upright when discharging the contents. 132 US gal. 500 litres. Weight empty: 17 lbs. Weight full: 1115 lbs.