General characteristics
Crew: 4-6: at least 2 pilots,1 flight engineer (eliminated in the J variant), and 1 loadmaster; additional loadmaster and navigator are usually part of the crew 
Capacity:

92 passengers or 
64 airborne troops or 
74 litter patients with 2 medical personnel 
Payload: 45,000 lb (20,000 kg) including 2-3 Humvees or an M113 Gavin Armoured Personnel Carrier 
Length: 97 ft 9 in (29.8 m) 
Wingspan: 132 ft 7 in (40.4 m) 
Height: 38 ft 3 in (11.6 m) 
Wing area: 1,745 ft (162.1 m) 
Empty weight: 83,000 lb (38,000 kg) 
Useful load: 72,000 lb (33,000 kg) 
Max takeoff weight: 155,000 lb (70,300 kg) 
Powerplant: 4 Allison T56-A-15 turboprops, 4,300 shp (3,210 kW) each 
Performance
Maximum speed: 329 knots (379 mph, 610 km/h) 
Cruise speed: 292 knots (336 mph, 540 km/h) 
Range: 2,050 nm (2,360 mi, 3,800 km) 
Service ceiling: 33,000 ft (10,000 m) 