这 康维尔 C-131D 撒玛利亚人was the military transport version of the successful Convair CV-340 civilian airliner. Introduced in the 1950s, it was the first pressurized, twin-engine transport ordered by the U.S. Military Air Transport Service. While earlier variants like the C-131A were primarily flying hospitals, the“D” modelwas configured as a versatile personnel and VIP transport. Its reliability and pressurized cabin made it a staple for moving high-ranking officials and wounded personnel across the globe for over three decades.
Attribute
Technical Specification (C-131D)
作用
Military Personnel / VIP Transport
船员
3-4 (Pilot, Co-pilot, Flight Engineer, Steward)
First Flight (C-131 series)
September 22, 1949
动力装置
2 × Pratt & Whitney R-2800-103W radial engines
Horsepower
2,500 hp each (with water/alcohol injection)
最高速度
293 mph (472 km/h)
Service Ceiling
24,500 – 30,000 feet
范围
Approx. 1,300 – 1,800 miles
能力
44 Passengers or specialized VIP interiors
Engineering Excellence and Design Features
Pressurization Advantage:The C-131 was a massive leap forward from the unpressurized C-47s it replaced. This allowed it to fly above most weather, providing a much smoother ride for VIPs and more stable conditions for aeromedical evacuation patients.
Integral Airstair:Unlike many cargo planes of the era that required external ramps, the C-131D featured a built-in stairway that folded into the right side of the fuselage, allowing it to operate from remote airfields with minimal ground support.
Water/Alcohol Injection:To assist with heavy takeoffs or “hot and high” airfield conditions, its R-2800 engines could use a water-methanol injection system to temporarily boost horsepower, a common feature in late-era high-performance radial engines.
The “Long” Convair:The C-131D was based on the CV-340, which featured a longer fuselage and greater wingspan than the original CV-240 (used for the C-131A), allowing for increased payload and range.
A Legacy of Service
The First “Vomit Comet”:In 1959, a C-131 was the first aircraft used as a reduced-gravity platform to train the original Mercury Seven astronauts, earning it the famous “Vomit Comet” nickname.
The Gunship Testbed:In 1963, a C-131B was used for “Project Tailchaser,” the very first experiments in side-firing gunships, which eventually led to the development of the AC-47 and AC-130.
Air Force One Duty:On October 26, 1972, a C-131D was used by President Richard Nixon for a campaign trip, briefly serving as the primary presidential aircraft.
Long Life:While most were retired from the Air Force in the late 1970s, many continued to fly with the Air National Guard and the U.S. Navy well into the late 1980s.