[2] Its design led to a range of successful larger flying boats that was assistance in promoting Britain as a leader in this field of aviation.

[1] Before the war Porte worked with American aircraft designer Glenn Curtiss on a trans-atlantic flying boat.

Due to the start of the Great War he returned to England, eventually to command of the naval air station at Felixstowe, Suffolk.

[2] The Porte I hull used the wings and tail unit of an original H-4 (No.3580) powered by two Hispano-Suiza 8 engines; the new flying boat was designated the Felixstowe F.1.

[1][2] During trials of the F.1 two further steps were added to the hull and a deeper V-shape which greatly improved the performance on takeoff and landing.