Fairchild C-123K Provider
During World War II, both Great Britain and Germany had experimented with very large glider designs (the Hamlicar and Gigant, respectively) capable of carrying tanks. Though glider assaults had varied results during the war, the US Air Force briefly considered resurrecting the idea in 1948, and commissioned Chase Aircraft to build a large glider, the XCG-20 Avitruc. The XCG-20 was of all-metal construction, with a fully-equipped flight deck and a rear-mounted loading ramp for vehicles to be driven directly into the fuselage. The USAF abandoned the idea of glider assaults soon after the first XCG-20 was completed, but Chase had anticipated this: through the simple installation of two propeller-driven engines, the XCG-20 became the XC-123. This itself was considered only an interim design, as the XC-123A had four turbojet engines, becoming the first all-jet transport aircraft.
The USAF rejected the XC-123A, as it was found to have poor performance and short range, owing to the thirsty jets of the early 1950s. However, the piston-engined XC-123 showed promise, and the USAF ordered it into production in 1953. Production was delayed due to Chase Aircraft being acquired by Kaiser, who in turn sold the design to Fairchild Aircraft, who would produce it as the C-123B Provider.
The C-123 was considered a supplemental aircraft to the C-119 Flying Boxcar already in service and the soon-to-be-deployed C-130 Hercules. It had better single-engine performance than the C-119, and acquired a reputation for reliability, rugged design, simple maintenance, and the ability to land almost anywhere. A small number were converted to C-123J standard, with ski landing gear for operations in Antarctica and Greenland, and experiments were even made to convert it to an amphibian. Nevertheless, the number of C-123s in service were small compared to other types, and the C-130 began replacing it beginning in 1958.
As the United States involved itself more in the Vietnam War, one major advantage of its Viet Cong and North Vietnamese Army adversaries was the very jungle of Vietnam itself, which provided ready-made cover and camouflage from American air units. In an attempt to deprive the VC/NVA of jungle cover in known concentration areas, the USAF converted a number of C-123s to UC-123 standard, with spraying equipment for the pesticide Agent Orange. Under Operation Ranch Hand, UC-123s were among the first USAF aircraft deployed to Vietnam, and the first USAF aircraft lost in combat was a UC-123B. Spraying Agent Orange was very dangerous work, as it involved flying low and slow over hostile territory; it would not be until after the Vietnam War was over that it was learned that Agent Orange, used in the concentrated quantity employed in Vietnam, was also a deadly carcinogenic.
Besides their controversial employment as defoilant sprayers, standard C-123s were used as transports and Candlestick flareships, as the C-130 demand was exceeding supply, and the US Army’s CV-2 (later C-8) Caribous were proving the worth of a short-takeoff and landing transport. To improve the Provider’s performance in the “hot and high” conditions of Vietnam, two J85 turbojets were added beneath the wings of the C-123K variant, which became the final Provider variant and the main type used in Vietnam. CIA-flown Providers were used by Air America to clandestinely supply friendly Hmong tribes in Laos and in Cambodia. 54 C-123s were lost in Vietnam, second only to the C-130.
Following the end of American involvement in Vietnam, the C-123Ks were either handed over to South Vietnam or relegated to USAF Reserve and Air National Guard units, from which they were finally withdrawn around 1980. A few UC-123Ks were used to spray insecticides in Alaska and Guam as late as 1982. 11 other air forces used Providers, and the last C-123s were retired from the South Korean Air Force in 2001. 27 are preserved as museum pieces and a few remain in revenue service as “bush” aircraft in Alaska and elsewhere; remaining aircraft in storage were scrapped due to Agent Orange contamination.
54-0633 was delivered to the USAF as a C-123B in 1956, and was later converted to a C-123K. It was sent to Vietnam as part of the 315th Tactical Airlift Wing at Phan Rang, where it operated as a standard transport. At one point, its combat record indicates a brief stint with the 12th Special Operations Squadron, where it may have served as a "Candlestick" flareship for operations over the Ho Chi Minh Trail. Flareship operations were nearly as dangerous as Agent Orange missions: billion-candlepower flares were dropped to light up a large area, making the aircraft dropping the flares an instant target.
54-0633 survived the war and returned home in 1970, where it was then assigned to Air Force Reserve units, finishing with the 907th TAG at Wright-Patterson AFB, Ohio in 1982. It was donated to the Museum of Aviation at Robins AFB in 1988.
54-0633 looks to have fairly recently gotten a new coat of paint, and is painted as it would have appeared with the 315th TAW, in Southeast Asia camouflage. I got this picture on a very humid Georgia afternoon in June 2019.
Fairchild C-123K Provider
During World War II, both Great Britain and Germany had experimented with very large glider designs (the Hamlicar and Gigant, respectively) capable of carrying tanks. Though glider assaults had varied results during the war, the US Air Force briefly considered resurrecting the idea in 1948, and commissioned Chase Aircraft to build a large glider, the XCG-20 Avitruc. The XCG-20 was of all-metal construction, with a fully-equipped flight deck and a rear-mounted loading ramp for vehicles to be driven directly into the fuselage. The USAF abandoned the idea of glider assaults soon after the first XCG-20 was completed, but Chase had anticipated this: through the simple installation of two propeller-driven engines, the XCG-20 became the XC-123. This itself was considered only an interim design, as the XC-123A had four turbojet engines, becoming the first all-jet transport aircraft.
The USAF rejected the XC-123A, as it was found to have poor performance and short range, owing to the thirsty jets of the early 1950s. However, the piston-engined XC-123 showed promise, and the USAF ordered it into production in 1953. Production was delayed due to Chase Aircraft being acquired by Kaiser, who in turn sold the design to Fairchild Aircraft, who would produce it as the C-123B Provider.
The C-123 was considered a supplemental aircraft to the C-119 Flying Boxcar already in service and the soon-to-be-deployed C-130 Hercules. It had better single-engine performance than the C-119, and acquired a reputation for reliability, rugged design, simple maintenance, and the ability to land almost anywhere. A small number were converted to C-123J standard, with ski landing gear for operations in Antarctica and Greenland, and experiments were even made to convert it to an amphibian. Nevertheless, the number of C-123s in service were small compared to other types, and the C-130 began replacing it beginning in 1958.
As the United States involved itself more in the Vietnam War, one major advantage of its Viet Cong and North Vietnamese Army adversaries was the very jungle of Vietnam itself, which provided ready-made cover and camouflage from American air units. In an attempt to deprive the VC/NVA of jungle cover in known concentration areas, the USAF converted a number of C-123s to UC-123 standard, with spraying equipment for the pesticide Agent Orange. Under Operation Ranch Hand, UC-123s were among the first USAF aircraft deployed to Vietnam, and the first USAF aircraft lost in combat was a UC-123B. Spraying Agent Orange was very dangerous work, as it involved flying low and slow over hostile territory; it would not be until after the Vietnam War was over that it was learned that Agent Orange, used in the concentrated quantity employed in Vietnam, was also a deadly carcinogenic.
Besides their controversial employment as defoilant sprayers, standard C-123s were used as transports and Candlestick flareships, as the C-130 demand was exceeding supply, and the US Army’s CV-2 (later C-8) Caribous were proving the worth of a short-takeoff and landing transport. To improve the Provider’s performance in the “hot and high” conditions of Vietnam, two J85 turbojets were added beneath the wings of the C-123K variant, which became the final Provider variant and the main type used in Vietnam. CIA-flown Providers were used by Air America to clandestinely supply friendly Hmong tribes in Laos and in Cambodia. 54 C-123s were lost in Vietnam, second only to the C-130.
Following the end of American involvement in Vietnam, the C-123Ks were either handed over to South Vietnam or relegated to USAF Reserve and Air National Guard units, from which they were finally withdrawn around 1980. A few UC-123Ks were used to spray insecticides in Alaska and Guam as late as 1982. 11 other air forces used Providers, and the last C-123s were retired from the South Korean Air Force in 2001. 27 are preserved as museum pieces and a few remain in revenue service as “bush” aircraft in Alaska and elsewhere; remaining aircraft in storage were scrapped due to Agent Orange contamination.
54-0633 was delivered to the USAF as a C-123B in 1956, and was later converted to a C-123K. It was sent to Vietnam as part of the 315th Tactical Airlift Wing at Phan Rang, where it operated as a standard transport. At one point, its combat record indicates a brief stint with the 12th Special Operations Squadron, where it may have served as a "Candlestick" flareship for operations over the Ho Chi Minh Trail. Flareship operations were nearly as dangerous as Agent Orange missions: billion-candlepower flares were dropped to light up a large area, making the aircraft dropping the flares an instant target.
54-0633 survived the war and returned home in 1970, where it was then assigned to Air Force Reserve units, finishing with the 907th TAG at Wright-Patterson AFB, Ohio in 1982. It was donated to the Museum of Aviation at Robins AFB in 1988.
54-0633 looks to have fairly recently gotten a new coat of paint, and is painted as it would have appeared with the 315th TAW, in Southeast Asia camouflage. I got this picture on a very humid Georgia afternoon in June 2019.