https://en.wikipedia.org/wiki/Douglas_DC-1

General characteristics

• Crew: 2 pilots
• Capacity: 12 passengers
• Length: 60 ft 0 in (18.29 m)
• Wingspan: 85 ft 0 in (25.91 m)
• Height: 16 ft 0 in (4.88 m)
• Wing area: 942 sq ft (87.5 m²)
• Airfoil: root: NACA 2215; tip: NACA 2209^[12]
• Empty weight: 11,780 lb (5,343 kg)
• Gross weight: 17,500 lb (7,938 kg)
• Powerplant: 2 × Wright SGR-1820F3 Cyclone 9-cylinder air-cooled rafial piston engines, 690 hp (510 kW) each
• Propellers: 3-bladed variable-pitch metal propellers

Performance

• Maximum speed: 210 mph (338 km/h; 182 kn)
• Cruise speed: 190 mph (306 km/h; 165 kn) at 8,000 ft (2,400 m)
• Range: 1,000 mi (869 nmi; 1,609 km)
• Service ceiling: 23,000 ft (7,000 m)