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Type of aircraft From Wikipedia, the free encyclopedia
The Potez 661 was a four-engined metal low-wing monoplane airliner developed in France just before World War II. The single example flew with Air Afrique on French colonial routes.
| 661 | |
|---|---|
 | |
| Role | Passenger transport |
| National origin | France |
| Manufacturer | S.N.C.A.N. |
| First flight | 18 July 1937 |
| Primary user | Air Afrique |
| Number built | 2 |
In 1936 the well-established Potez company became part of the Société Nationale de Constructions Aéronautique du Nord (S.N.C.A.N.), under the Law for the Nationalisation of Military Industries.[1] In 1937 they produced their first four-engined aircraft, the Type 661. This was[2] a commercial machine with seating for up to twelve passengers. It was a low wing cantilever, almost all-metal monoplane. The wing tapered with a nearly straight trailing edge[3] that carried outboard balanced ailerons and split trailing edge flaps over the whole of the centre section. The four 220 hp (164 kW) Renault 6Q inverted inline engines were conventionally mounted of the front wing spar and drove variable-pitch twin-bladed propellers.
The fuselage[2] was a metal monocoque, with a port side passenger door aft of six windows[3] on each side, one per seat. Though the standard seat arrangement was for twelve, two seats could be removed to allow the installation of chaises-longues for longer flights. The pilots' cabin was enclosed, with side by side dual control seating. The tail unit carried twin vertical endplate fins, slightly oval on a tailplane that had strong dihedral. The balanced rudders and elevators were metal structures with the only fabric covering used on the aircraft. The elevators carried trim tabs. There was a small tailwheel, the main undercarriage retracting into the inner engine nacelles.
The first flight was on 18 July 1937.[4] By August 1938 the 661 had completed its Air Ministry tests[5] and by April 1939 its 100 hr "endurance" tests.[6] In mid-April it was handed over to Air Afrique[7] and had made its first flight[6] on the trans-Africa route from Dakar to Pointe Noire. Though only one was built before the war, it gained the reputation of being an economical transport.[3] There were suggestions, in war-time England at least that the Potez 661 or its more powerful development the Potez 662 might be built in occupied France for German use,[3] but there is no evidence that any more were produced.
Data from Grey 1972, pp. 110c
General characteristics
Performance
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