SIPA S.70

The design for a commercial light transport for inter-city routes was started in 1947, the S.70 was a wooden, twin-engined, low-wing cantilever, cabin monoplane with a twin tail.^[1] Powered by two 210 hp (157 kW) Mathis G.8R piston engines it had room for six to eight passengers with a pilot sat centrally at the front.^[2] The prototype, registered F-WZCI, was flown in 1949 but very little else is known and it did not enter production.^[1]

Data from French postwar transport aircraft,^[1] Jane's all the World's Aircraft 1947.^[2]

General characteristics

• Crew: 1
• Capacity: 6-8 passengers
• Length: 10.2 m (33 ft 6 in)
• Wingspan: 13.8 m (45 ft 3 in)
• Height: 3.6 m (11 ft 10 in)
• Wing area: 24.59 m² (264.7 sq ft)
• Empty weight: 1,294 kg (2,853 lb)
• Gross weight: 2,428 kg (5,353 lb) with 8 passengers
• Powerplant: 2 × Mathis G.8R inverted air-cooled V-8 piston engines, 160 kW (210 hp) each
• Propellers: 2-bladed Legére variable-pitch airscrews

Performance

• Maximum speed: 270 km/h (170 mph, 150 kn)
• Cruise speed: 240 km/h (150 mph, 130 kn) 70% power
• Range: 1,000 km (620 mi, 540 nmi)
• Wing loading: 99 kg/m² (20 lb/sq ft) with 8 passengers
• Fuel consumption: 0.238 kg/km (0.84 lb/mi)
• Power/mass: 9.18 kg/kW (15.1 lb/hp)

Aircraft of comparable role, configuration, and era

• Beechcraft Model 18