The Astra-Paulhan flying boat was designed and built in the latter stages of WWI and was tested at the Marine Nationale seaplane base at Saint-Raphaël, Var in 1919. No information is available other than it was a biplane with twin fuselages between the wings and a central flying boat hull suspended from the lower wing, powered by two water-cooled engines in the noses of the fuselages.[1]