Cover art for a minicomic that I created for my 10-year old nephew. Clicking on the image takes you to the storyline.
Due to clutch problems the plane unfortunately never raced in the Schneider Cup. Giovanni Pegna claimed the plane could reach a top speed of 700km/h (434 mph).
As the plane gained speed during takeoff, the hydrofoils lifted plane’s fuselage (hull?) and its airscrew out of the water. A clutch was then engaged transferring motive power from the marine propeller to the airscrew.
The aft ventral view of the Pegna P.C.7 showing the marine propeller, rudder and hydrofoils. The marine propeller was first engaged to begin moving the plane towards takeoff speed.
A 3D model of the Piaggio Pegna P.C.7. The seaplane was designed by Giovanni Pegna for the 1929 Schneider Trophy Race. In a bid to reduce aerodynamic drag the plane featured hydrofoils instead of the usual floats for taking off from the water. Clicking on the image takes you to the Wikipedia entry.