The C-123 Provider served with the USAF until the end of the Vietnam War at which time they were replaced by the C-130 Hercules and transferred to the Air Force Reserve and Air National Guard where they served until the mid 1980's. C-123k Provider Specifications: - Crew: 4
- Capacity: 62 passengers
- Length: 76.25 ft (23.92 m)
- Wingspan: 110 ft (33.53 m)
- Height: 34 ft (10.36 m)
- Loaded weight: 60,000 lb (27,000 kg)
- Engines: Twin 2,300 hp (1,715 kW) Pratt & Whitney R-2800-99W "Double Wasp" 18-cylinder radial engines and two under-wing J85 booster engines
- Maximum speed: 228 mph (198 knots, 367 km/h) with J85-GE-17 booster engines
- Range: 1,035 mi (899 nm, 1,666 km)
- Service ceiling: 29,000 ft (8,800 m)
- Rate of climb: 1,150 ft/min (5.8 m/s) without J85-GE-17 booster engines
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