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.
Occasionally researching aircraft histories is an exercise in frustration, and this C-123K, 54-0659, is one of them. It was originally built as a C-123B and later upgraded to a C-123K--it may have flown in Vietnam, though strictly as a transport rather than a UC-123K sprayer, which is why it hasn't been scrapped. It was retired in 1981 (making it one of the final C-123s to leave service) and flown to MASDC in Arizona for storage. In 1989, 54-0659 was reactivated and flew with the US State Department as a general transport aircraft until 1991, when it was donated to Peru; there, it flew with the Peruvian National Police.
As the Providers were getting very old by the 1990s, 54-0659 was retired in 1994 and returned to Arizona. Two years later, it was reserved for the Pima Air and Space Museum for display, but as Pima already had a C-123, the aircraft was dropped in 2001. It was towed over to Aircraft Restoration and Marketing for scrap, but in 2003 54-0659 got another extension on life: it was picked up by a private owner and became N123KJ. However, it has not left ARM, and as of June 2024, remains there. In theory, the aircraft is still flyable, but would need some work to become airworthy again.
This was the first aircraft I photographed on the Boneyard Safari tour in June 2024; even though it was still fairly early in the morning, it was very hot (notice everyone else standing in the shade). I quickly found out that I'm not acclimated to an Arizona summer...
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.
Occasionally researching aircraft histories is an exercise in frustration, and this C-123K, 54-0659, is one of them. It was originally built as a C-123B and later upgraded to a C-123K--it may have flown in Vietnam, though strictly as a transport rather than a UC-123K sprayer, which is why it hasn't been scrapped. It was retired in 1981 (making it one of the final C-123s to leave service) and flown to MASDC in Arizona for storage. In 1989, 54-0659 was reactivated and flew with the US State Department as a general transport aircraft until 1991, when it was donated to Peru; there, it flew with the Peruvian National Police.
As the Providers were getting very old by the 1990s, 54-0659 was retired in 1994 and returned to Arizona. Two years later, it was reserved for the Pima Air and Space Museum for display, but as Pima already had a C-123, the aircraft was dropped in 2001. It was towed over to Aircraft Restoration and Marketing for scrap, but in 2003 54-0659 got another extension on life: it was picked up by a private owner and became N123KJ. However, it has not left ARM, and as of June 2024, remains there. In theory, the aircraft is still flyable, but would need some work to become airworthy again.
This was the first aircraft I photographed on the Boneyard Safari tour in June 2024; even though it was still fairly early in the morning, it was very hot (notice everyone else standing in the shade). I quickly found out that I'm not acclimated to an Arizona summer...