In 1929 Mantelli competed in flying competitions with aircraft that were self designed and built. In 1931 he started designing gliders. he achieved fifteen victories. In 1945 Mantelli designed the
AM-6 twin boomed pusher aircraft derived from previous glider designs. Mantelli co-founded the company Alaparma with Livio Agostini to produce the AM-6, and later the
AM-8 and
AM-10 aircraft. In 1951 Mantelli designed and built two gliders, the AM-10 and
AM-12 "Albatross", in
Buenos Aires,
Argentina In 1954, Mantelli set an Italian record for altitude in a glider in a two-seat
CVV-6 Canguro glider. Mantelli received the FAI Louis Blériot Medal in 1962, and 1964. Mantelli reached the rank of General. He died in 1995 while waiting for a train at
Firenze Santa Maria Novella railway station. == References ==