Savoia-Marchetti SM.75 - Specifications (SM.75 With Alfa Romeo Engines)

Specifications (SM.75 With Alfa Romeo Engines)

Data from Italian Civil and Military aircraft 1930-1945

General characteristics

• Crew: 4 (+1 gunner in military use)
• Capacity: 24 passengers
• Length: 21.594763 m (70 ft 10.1875 in)
• Wingspan: 29.69 m (97 ft 5 in)
• Height: 5.0991 m (16 ft 8.75 in)
• Wing area: 118.55 m2 (1,276.1 sq ft)
• Empty weight: 9,480 kg (20,900 lb)
  
  • (with Piaggio engines 9,779.5 kg (21,560 lb))
• Gross weight: 14,470 kg (31,900 lb)
  
  • (with Piaggio engines 14,769 kg (32,560 lb))
• Powerplant: 3 × Alfa Romeo 126 R.C.34 9-cyl air-cooled radial piston engines, 560 kW (750 hp) each
  
  • or 3 x 1,000 hp Piaggio P.XI R.C.40 14-cyl radial engines

Performance

• Maximum speed: 369 km/h; 199 kn (229 mph) at 289.7 km/h (180 mph)
  
  • On two engines maximum speed was 3,069 m (10,069 ft)
  • With Piaggio engines 245 km/h (152 mph)
• Cruise speed: 325 km/h; 176 kn (202 mph)
  
  • (With Piaggio engines 214 km/h (133 mph))
• Range: 2,279 km; 1,230 nmi (1,416 mi) maximum
  • With Piaggio engines 999.4 km (621 mi)
• Service ceiling: 6,998 m (22,960 ft)
  
  • On two engines service ceiling was 4,400 m (14,436 ft)
  • With Piaggio engines 9,000 m (29,528 ft)
• Rate of climb: 3.7 m/s (730 ft/min)
• Time to altitude: 4,000 m (13,123 ft) in 17 min 42 sec
  • With Piaggio engines 4,000 m (13,123 ft) in 19 min