Piaggio PD.808
The Piaggio PD.808 was an Italian business jet built by Piaggio. It was designed as a joint venture between Piaggio and Douglas Aircraft Company of Long Beach, California, United States. Design and development. Originally named the PD.808 Vespa Jet the business jet was designed in a joint venture between Piaggio and the Douglas Aircraft Company. The basic design work was carried out by Douglas and the prototype was built at the Piaggio factory at Finale Ligure. The PD.808 was a low-wing cantilever cabin-monoplane with tip-tanks and powered by two rear-mounted Bristol Siddeley Viper 525  turbojets. It has retractable tricycle landing gear and was originally designed with a cabin for a pilot and six-passengers. The first Viper 525-powered prototype (with Italian Serial Number "MM577") first flew on 29 August 1965, this was followed by a second Viper 525 powered prototype and two civil demonstrators. The company tried to interest commercial operators (including offering a General Electric CJ610 variant) but the only interest was from the Italian Air Force as a liaison, training and radar calibration aircraft with an order for 25. The Italian Air Force aircraft were powered by Viper 526 turbojets. Accidents  and incidents. On 18 June 1968 one of the demonstration aircraft "I-PIAI" crashed in bad-weather when it flew into the side of Mount Jaizkibel, near San Sebastian, Spain, all six on-board including the Italian businessman Lino Zanussi and the Piaggio chief test pilot Davide Albertazzi were killed.