 At Madrid in 1952 Mantelli came fourth with teammate Guerrini, flying a second Canguro, in sixteenth place.In 1954 Mantelli and L. Brighini, flying together, came second at Camphill in Derbyshire, UK; two years later A. Brigliadori and Fanoli could only finish eleventh at Saint-Yan, France.Italian Air Force operated 32 aircraft until 1980s