Potez 840
The Potez 840 was a four-engine French business aircraft from the 1960s. From the laid for eighteen passengers machine only eight copies were completed. The lack of demand meant the end of the manufacturer Potez.
History
The first flight of the prototype took place on 29 April 1961. A more motorized second aircraft was completed in June 1962 and subsequently went on sale tour to North America. Since the expected orders forthcoming, only two more prototypes were built instead of the planned 25 aircraft. Shortly afterwards, two improved aircraft with a modified drive and the designation Potez 841 Both flew several years in Germany before they were sold in the United States. In the years 1965 and 1967, the last two units were built as Potez 842
Construction
The Potez 840 was an all metal aircraft that was designed as a free standing low wing and had a retractable landing gear. In addition to three crew members, it could accommodate eighteen passengers.
The drive consisted of four turboprop engines, which were attached to the front of the wings. The first prototype had the 328 kW Turboméca Astazou II, from the second model was the Astazou XII with 447 kW. The Potez 841, however, received four Pratt & Whitney Canada PT6A -6 engines with 417 kW of power. The 842 version was in turn modified Astazou engines.