Potez 840

Last updated
Potez 840
Aero-Dienst Potez 841 at Munich Riem Airport.jpg
Aero-Dienst Potez 841 at Munich Riem Airport (1968)
Role18-Passenger executive transport monoplane
Manufacturer Potez
First flight29 April 1961
Produced1961–1967
Number built8

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

Contents

Development

The Potez 840 was an all-metal cantilever-wing monoplane with a retractable tricycle landing gear. It had a crew of three and a cabin for 18 passengers. It was powered by four 440 shp (328 kW) Turbomeca Astazou II turboprop engines. 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. [1] The next two aircraft were designated the Potez 841 and were powered by 550 shp (417 kW) Pratt & Whitney Canada PT6A-6 turboprop engines. Another two modified Astazou-powered aircraft were produced, one in 1965 and one in 1967.

It was intended to build Potez 840s in a factory at Baldonnel Aerodrome in the Republic of Ireland with financial aid from the Government of Ireland but this factory was closed in 1968 without completing a single aircraft. [2] [3] The former Potez factory at Baldonnel became an engine maintenance facility for the German airline Lufthansa with the factory finally closing in 2013. [4]

Service

The two Potez 841s were delivered to German customers in 1965, remaining in use until the mid 1970s. The first Potez 842 was operated by the French national civil pilot training school, Service de la Formation Aéronautique (SFA) from 1966 to 1976, while the second 842 was purchased by the Moroccan Ministry of Defense, being sold on in 1978. [5]

Variants

Potez 840
Astazou-powered variant, four built.
Potez 841
Production variant powered by 558 shp (416 kW) Pratt & Whitney PT6A-6 engines, two built. [5]
Potez 842
Production variant powered by 640 shp (480 kW) Turbomeca Astazou XII engines, two built. [5]
Potez 843
Unbuilt 1965 proposal with deeper fuselage and PT6 engines. [6]
Potez 880
Unbuilt military STOL version with four 917 shp (684 kW) Turbomeca Bastan engines. [6]
Potez 881
Unbuilt civil version of 880. [6]

Survivors

Potez 840 fuselage near North Roe, Shetland. Potez 840 Shetland.jpg
Potez 840 fuselage near North Roe, Shetland.

Specifications (Potez 842)

Data fromJane's All The World's Aircraft 1965–66. [8]

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

Related Research Articles

<span class="mw-page-title-main">Handley Page Jetstream</span> Turboprop regional and commuter airliner family

The Handley Page HP.137 Jetstream is a small twin-turboprop airliner, with a pressurised fuselage. The aircraft was designed to meet the requirements of the United States commuter and regional airline market. The design was later improved and built by British Aerospace as the BAe Jetstream 31 and BAe Jetstream 32, featuring different turboprop engines.

<span class="mw-page-title-main">Pilatus PC-6 Porter</span> Swiss single engine STOL utility transport aircraft, 1959

The Pilatus PC-6 Porter is a single-engined STOL utility aircraft designed by Pilatus Aircraft of Switzerland. First flown in 1959, the PC-6 was produced at Pilatus Flugzeugwerke in Stans, Switzerland. It has been built in both piston engine- and turboprop-powered versions, and was produced under licence for a time by Fairchild Hiller in the United States. After 604 deliveries in 63 years, Pilatus ended production in 2022.

<span class="mw-page-title-main">Embraer EMB 121 Xingu</span> Type of aircraft

The Embraer EMB 121 Xingu is a twin-turboprop fixed-wing aircraft built by the Brazilian aircraft manufacturer, Embraer. The design is based on the EMB 110 Bandeirante, using its wing and engine design merged with an all-new fuselage. The EMB 121 first flew on 10 October 1976.

<span class="mw-page-title-main">Piper PA-31T Cheyenne</span> Turboprop-powered series of the PA-31 light transport aircraft

The Piper PA-31T Cheyenne is a turboprop development of the earlier PA-31P Pressurized Navajo.

<span class="mw-page-title-main">Aérospatiale N 262</span> French regional airliner with 2 turboprop engines, 1962

The Aérospatiale N 262 is a French twin-turboprop high-wing airliner built first by Nord Aviation. The aircraft was also known as the Nord 262.

<span class="mw-page-title-main">Turbomeca Astazou</span>

The Turbomeca Astazou is a highly successful series of turboprop and turboshaft engines, first run in 1957. The original version weighed 110 kg (243 lb) and developed 240 kW (320 shp) at 40,000 rpm. It was admitted for aviation service on May 29, 1961, after a 150-hour test run. The main developing engineer was G. Sporer. It was named after two summits of the Pyrenees.

<span class="mw-page-title-main">Air Tractor AT-500 family</span> Type of aircraft

The Air Tractor AT-500 is a family of agricultural aircraft that first flew in the United States on 25 April 1986, manufactured by Air Tractor Inc. Of monoplane low-wing, taildragger configuration, they carry a chemical hopper between the engine firewall and the cockpit. Compared with their predecessor, the AT-500 family mostly feature a wingspan increased to 50 ft, and an additional fuselage stretch of 22 in (56 cm), allowing for a larger chemical hopper. Almost all variants offer a widened "buddy" seat or a tandem seat for a passenger, observer, or loader; trainer aircraft with full dual controls have also been offered.

<span class="mw-page-title-main">Bréguet 941</span> French STOL transport aircraft with 4 turboprop engines, 1959

The Breguet 941 was a French four-engine turboprop short takeoff and landing (STOL) transport aircraft developed by Breguet in the 1960s. Although widely promoted, both by Breguet in France and by McDonnell Aircraft and McDonnell Douglas in the United States, it was not built in large numbers; only one prototype and four production aircraft were built.

The Dassault M.D.320 Hirondelle was a French 14-seat utility transport aircraft of the 1960s, designed and built by Dassault Aviation, in prototype form only.

<span class="mw-page-title-main">Fouga CM.10</span> French Army assault glider

The Fouga CM.10 was an assault glider designed for the French Army shortly after World War II, capable of carrying 35 troops, later converted as a powered transport.

<span class="mw-page-title-main">Dassault Communauté</span> Type of aircraft

The Dassault MD.415 Communauté was a 1950s French twin-engined light turboprop transport monoplane built by Dassault Aviation. Only one prototype was built and flown.

<span class="mw-page-title-main">Nord Noralpha</span> Type of aircraft

The Nord 1100 Noralpha was a French-built and re-engined Messerschmitt Bf 108 produced by Nord Aviation.

The Nord 2100 Norazur was a 1940s French military transport monoplane designed and built at Courbevoie near Paris by SNCAN.

The Bréguet 890 Mercure was a late 1940s French cargo and passenger transport aircraft designed by Bréguet Aviation. Three variants were produced including a military variant called the Mars but none entered production.

<span class="mw-page-title-main">SIPA Antilope</span> Type of aircraft

The SIPA S.251 Antilope was a low-wing monoplane, seating four or five and powered by a single turboprop engine, developed in France in the early 1960s. It set a number of class records but was not put into production.

<span class="mw-page-title-main">Short SC.7 Skyvan</span> 1963 transport aircraft family by Short Brothers

The Short SC.7 Skyvan is a British 19-seat twin-turboprop aircraft manufactured by Short Brothers of Belfast, Northern Ireland. It is used mainly for short-haul freight and skydiving.

<span class="mw-page-title-main">Nord 260</span> Type of aircraft

The Nord 260, built in prototype form as the Max Holste MH.260 Super Broussard,, was a turboprop-powered, uprated version of the piston-engined Max Holste MH.250 Super Broussard, that was further developed into the Aérospatiale N 262.

<span class="mw-page-title-main">UTVA Kobac</span> Type of aircraft

The UTVA Kobac was a prototype Serbian single-engine, low-wing tandem-seat turboprop training/light attack aircraft manufactured by Pančevo based UTVA Aviation Industry, and designed by the Military Technical Institute. Revealed as a mockup on 02 September 2012 during the Batajnica 2012 Air Show, the aircraft's first flight was planned for 2013, but was never realized.

The Morane-Saulnier MS-700 Pétrel was a French four-seat cabin-monoplane designed and built by Morane-Saulnier, only three prototypes were built.

The Hurel-Dubois Miles HDM.105 was a transport aircraft fitted with very high aspect ratio wings for research purposes, building on research carried out with the Hurel-Dubois HD.10, and a stepping point to the planned production HDM.106 Caravan. The HDM.105/HDM.106 provided the starting point for the design of the Short SC.7 Skyvan.

References

  1. Dawydoff Flying August 1961, p. 25.
  2. "Dáil Éireann – Volume 235 – 25 June, 1968 – Committee on Finance. – Vote No. 40—Industry and Commerce". Parliamentary Debates. Office of the Houses of the Oireachtas. 25 June 1968. Archived from the original on 7 June 2011. Retrieved 23 November 2009.
  3. "Potez Irish Closure". Flight International . 8 August 1968. p. 197.
  4. 1 2 3 Air-Britain Aeromilitaria March 2017, p. 13
  5. 1 2 3 Chillon, Dubois & Wegg 1980, pp. 98–99
  6. 1 2 3 Chillon, Dubois & Wegg 1980, p. 98
  7. Pictures of crashed aircraft on Aviation Forum
  8. Taylor 1965, pp. 51–52.

Bibliography