Samiksha Jaiswal (Editor)

Potez 840

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Top speed
  
500 km/h

Length
  
16 m

Wingspan
  
20 m

Manufacturer
  
Potez

Potez 840 Potez 840 Untitled Aviation Photo 1755839 Airlinersnet

The Potez 840 was a 1960s French four-engined 18-passenger executive monoplane, the last aircraft to use the Potez name.

Contents

Potez 840 Potez 840 Untitled Aviation Photo 1538096 Airlinersnet

Development

Potez 840 Very rare pictures of Sumburgh39s Potez 840

The Potez 840 was an all-metal low-wing cantilever monoplane with a retractable tricycle landing gear. It had a crew of three and a cabin for 18 passengers. Powered by four 440 shp (328 kW) Turbomeca Astazou II turboprops two mounted on the leading edge of each wing. The prototype first flew on 29 April 1961, a second aircraft flew in June 1962 and had more powerful 600 shp (447 kW) Turbomeca Astazou XII engines. The second prototype carried out a sales tour of North America and it was planned to build a batch of 25 aircraft for Chicago-based Turbo Flight Inc. but only two more prototype aircraft were built, one for static testing. The next two aircraft were designated the Potez 841 and they were powered by 550 shp (417 kW) Pratt & Whitney Canada PT6A-6 turboprops. Two more modified Astazou-powered aircraft were produced, one in 1965 and one in 1967.

Potez 840 FBMCY Private Potez 840 at Off Airport Scotland Photo ID

It was intended to build Potez 840s in a factory in Baldonnel in Ireland, built with financial aid from the Irish Government, but this factory was closed in 1968 without completing a single aircraft.

Variants

Potez 840
Astazou-powered variant, four built.
Potez 841
PT6-powered variant, two built.
Potez 842
Modified Aztazou-powered variant, two built.

Survivors

Potez 840 httpsuploadwikimediaorgwikipediacommonsthu

  • One aircraft is displayed at the Musée de l'Air et de l'Espace in Paris.
  • The intact fuselage of a second can be found on the island of Shetland. It suffered a wheels-up landing at Sumburgh Airport in 1981. Many years later the fuselage was recovered and moved to its current location.

    • Specifications (Potez 842)

    Data from Jane's All The World's Aircraft 1965–66.

    General characteristics

    Potez 840 Potez 840 transport

  • Crew: 3
  • Capacity: 18 passengers
  • Length: 15.89 m (52 ft 1 in)
  • Wingspan: 19.60 m (64 ft 4 in)
  • Height: 5.19 m (17 ft 0½ in)
  • Wing area: 35.0 m2 (377 ft2)
  • Empty weight: 5,430 kg (11,970 lb)
  • Gross weight: 8,900 kg (19,620 lb)
  • Powerplant: 4 × Turbomeca Astazou X turboprops, 477 kW (640 hp) each

    • Performance

    Potez 840 840

  • Maximum speed: 500 km/h (311 mph)
  • Cruising speed: 500 km/h (311 mph)
  • Range: 3,000 km (1,865 miles)
  • Service ceiling: 8,000 m (26,000 ft)
  • Rate of climb: 10.5 m/s (2,065 ft/min)

    • References

    Potez 840 Wikipedia
    (Text) CC BY-SA