 This is stored within large tanks which are located mostly beneath the cabin floor within the hull, although a header tank above this level is present on either side of the fuselage.The airframe is built for reliability and longevity, making extensive use of corrosion-resistant materials, predominantly treated aluminium, that facilitates its use in salt water.Accordingly to Flight International, the CL-415 has good handling on the water, being relatively easy to operate in comparison with several other amphibious aircraft.