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Potez-CAMS 160

 Potez-160-01
 
In 1936 the design bureau of Potez-CAMS was beginning the development of the Potez-CAMS 161 six engine, trans-Atlantic passenger flying boat, intended to be a key component of Air France's Transatlantique fleet. To test the design they built a 5/13 scale flying scale model of it, careful not just to scale dimensions of the flying surfaces and hull, but also to copy the form the nose around the cabin, engine cowlings and retractable float housings. Control surface detail and the flaps of the 161, together with its variable-pitch propellers, were included on the resulting Potez-CAMS 160. It was intended to prove both the aerodynamic and hydrodynamic behaviour of the airliner.
 
 Potez-160-02
 
The 160 was a high-wing monoplane. The wing was a semi-cantilever structure, with two parallel bracing struts on each side from the lower fuselage to the wing just inside the central engines, straight-edged in plan with taper on the trailing edge only and rounded tips. It was fitted with interconnected Handley Page slots and ailerons as well as split flaps. It was powered by six four-cylinder inverted inline air-cooled Train 4T engines, each producing 30 kW (40 hp) driving three blade, variable-pitch propellers. The engines were mounted on the wing underside, housed in long, narrow cowlings intended to mimic those around the 664 kW (890 hp) Hispano-Suiza 12Ydrs water-cooled V-12 engines of the full scale aircraft.
 
 Potez-160-03
 
The little flying boat had a conventional stepped hull and was stabilized on the water by a pair of floats, attached under the outboard engines and retracting into their cowlings. Its enclosed, tandem seat cockpit was shaped to reproduce the form of the 161's nose, though the full sized aircraft had proportionally shorter glazing. The 161 had a twin fin empennage with a N-strut braced, parallel chord tailplane mounted on top of the fuselage on a short pillar with marked dihedral. The fins were of the endplate type, with curved leading edges and roughly symmetric above and below the tailplane; on each, the rudder was split into an upper and lower part. All of these features appeared on the final, full size airliner.
 
 Potez-160-04
 
It flew for the first time on 20 June 1938.
 
The Potez-CAMS 160 appeared, after its first flight, at the 1938 Paris Aero Show.
 
Engines: 6 × Train 4T, 30 kW (40 hp) each
Propellers: 3-bladed variable pitch
Wingspan: 17.69 m (58 ft 0 in)
Wing area: 38.7 sq.m (417 sq ft)
Length: 12.37 m (40 ft 7 in)
Height: 3.41 m (11 ft 2 in)
Gross weight: 2,275 kg (5,016 lb)
Maximum speed: 222 km/h (138 mph; 120 kn) at 950 m (3,116 ft)
Power/mloadng: 75 W/kg (0.047 hp/lb)
Wing loading: 58.5 kg/sq.m (12.0 lb/sq ft)
Crew: Two, pilot plus observer
 
 Potez-160-05
 
 
 
 
 


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