|The second PS.1|
The Caproni PS.1, also known as the Pallavicino PS-1 and Caproni Ca.303, was an Italian four-seater sportsplane, designed and built specifically to compete in Challenge 1934, the European touring plane championships.
Design and development
The Caproni PS.1 was a four-seat cabin aircraft of metal construction, with cantilever monoplane low wings. The steel-framed fuselage was covered with fabric as were the single-sparred trapezoidal planform foldable wings of steel construction which had rounded tips. The cabin had two side-by-side seats in front with dual controls, and two seats in the rear, under a common multi-part canopy. A retractable conventional landing gear with a rear skid was fitted with the mainwheels protruding from the wing's lower surface when retracted. The radial engine was fitted to the fuselage nose, enclosed by a cowling, driving a two-bladed propeller. Fuel was housed in a 160-litre fuel tank.
Both aircraft took part in the Challenge 1934 contest, flown by Armando François and Ugo Vincenzi. In a technical evaluation, the PS-1 took second place behind the Messerschmitt Bf 108 (the PS-1 and Bf 108 were the only Challenge aircraft with retractable landing gear). The aircraft were completed only shortly before the contest, so their pilots had little time for training. During a short landing trial, Vincenzi damaged his engine and propeller, and he had to withdraw. Armando François completed the contest in 18th place (for 34 starting and 19 finishing crews).
The second PS.1, I-MELO, was rebuilt in the late 1930s and redesignated Caproni Ca.166, given the registration I-ALGU.
Data from 
- Crew: one or two
- Capacity: two to three passengers
- Length: 7.19 m (23 ft 7 in)
- Wingspan: 10.41083 m (34 ft 1.875 in)
- Height: 2.1 m (7 ft)
- Wing area: 17.54 m2 (188.8 sq ft)
- Empty weight: 659 kg (1,452 lb)
- Gross weight: 1,078 kg (2,376 lb)
- Fuel capacity: 160 l (35.20 imp gal; 42.27 US gal)
- Powerplant: 1 × Fiat A.70 air-cooled 7-cylinder radial engine, 147 kW (197 hp)
- Maximum speed: 261 km/h; 141 kn (162 mph)
- Cruise speed: 230 km/h; 124 kn (143 mph)
- Stall speed: 60 km/h; 32 kn (37 mph)
- Range: 805 km; 434 nmi (500 mi)
- Service ceiling: 6,500 m (21,320 ft)
- Time to altitude: 26 minutes to 13,120 ft (4,000 m)
- Wing loading: 60 kg/m2 (12 lb/sq ft)
- Power/mass: 0.14 kW/kg (0.087 hp/lb)
- Aircraft of comparable role, configuration and era
|Wikimedia Commons has media related to Caproni PS.1.|
- Marian Krzyżan (1988). Międzynarodowe turnieje lotnicze 1929–1934 [International Air Tournaments 1929–1934]. Biblioteczka Skrzydlatej Polski (in Polish). Warsaw: WKiŁ. p. 288. ISBN 83-206-0637-3.
- Thompson, Jonathan (1963). Italian Civil & Military Aircraft 1930–1945 (1st ed.). New York: Aero Publishers Inc. p. 99. ISBN 0-8168-6500-0.