After the conclusion of the Korean War, the Communist
Chinese began construction of at least ten new airfields across the Taiwan
Straits from the island of Formosa, or Taiwan, which since 1948 had been the
refuge of Kuomintang or “Nationalist Chinese” forces after their expulsion from
the mainland. Having evacuated to
Formosa, they remained as a government-in-exile as the Republic of China. The late 1950s saw a continuing pattern of
improvements to Red Chinese capabilities that could threaten Taiwan and its key
strategic outposts on the islands of Quemoy, covering the approaches to the
port city of Amoy, and Matsu, overlooking the port city of Fuzhou. Also, a rail line had been built from the
city of Yingtan to Amoy, along with a major POL (Petroleum, Oil, and
Lubricants) facility of 1,500,000 gallons capacity located at about the halfway
point. The rail line, completed in early
1957, offered a vastly increased capability to sustain logistical support of an
invasion of Nationalist-held territories.
Soon after the Quemoy crisis of 1958 came advanced Soviet-supplied
weapons such as the MiG-19 and SA-2 “Guideline” surface-to-air missile.
With the need to monitor Red Chinese activity in the
aftermath of the latest crisis over the Taiwan Strait, an agreement between the
USAF and Republic of China Air Force (ROCAF) was signed in November 1959 to
provide reconnaissance aircraft. By this
point, the ROCAF had already received several now-obsolescent RF-86F aircraft, and operated about 20 Republic
RF-84F Thunderstreaks, four North American RF-100A “Slick Chicks”, and a single Martin RB-57D for high-altitude reconnaissance. The ROCAF was dissatisfied with the RF-100A as it entered service in 1959 and by the time
it was retired at the beginning of 1961, it never flew an operational
mission. To augment high-speed,
low-altitude reconnaissance assets and replace the RF-100As, four RF-101A Voodoos would be supplied to Taiwan under
Project Boom Town.
The four RF-101As transferred were 54-1500 as “650”, 54-1503 as
“652”, 54-1499 as “654”, and 54-1519 as “656”.
USAF records show two aircraft delivered to the ROCAF on 28 October 1959
under provisions of the Military Assistance Program (MAP). These aircraft were assigned to the 4th Tactical Reconnaissance Squadron at Taoyuan
AB, west of the capital city of Taipei.
At least in December 1959, these aircraft appear to have been on PACAF’s
books as it had a total of 40 RF-101A/C
aircraft assigned, four more than authorized, based at Kadena AB, Okinawa with
the 15th TRS and the 45th TRS
at Misawa AB, Japan. Conversion training
for the ROCAF pilots took place at Kadena AB.
Once the ROCAF pilots of the 4th TRS completed their training on the Voodoo,
missions over the coastal areas of the Chinese mainland began on 8 December 1960
under Project Sentry Dog, covering all of the Communist air bases opposite of
Quemoy. The ROCAF was very pleased with
the low-level reconnaissance ability of the RF-101A, despite the fact that their
aircraft used standard A-9B film magazines without image motion control, which
limited their minimum mission altitude. Ingress
routes to the objective were flown at literally rooftop level, avoiding trees
and power lines along the way, followed by a “pop-up” to a suitable altitude
over the objective to ensure good image quality and then maximum power egress back
toward the Taiwan Strait at supersonic speed.
In addition to Red Chinese airfields, the Voodoos also soon collected
detailed photographs of radar sites and Communist monitoring stations and
signals intelligence (SIGINT) facilities directed toward the heavily-populated
northern half of Taiwan. A mission by Major
Yeh Chang-ti in June 1961 brought back photos of five new
MiG airfields along the coast, for which both Major Yeh and the 4th
TRS were personally recognized by Generalissimo
Chiang Kai-shek. Major Yeh soon went on to become one of the
first ROCAF pilots assigned to fly the U-2 as one of the famed “Black Cats.”
Attrition losses soon began to take their toll on the small
Nationalist RF-101A fleet.
On 23 July 1961, an RF-101A, 54-1503 as “5652”, was badly
damaged in an accident and unavailable until the end of 1961. An attrition replacement was soon provided,
54-1498 as “5649”. This aircraft became the
first-ever combat loss of an RF-101 on 2 August 1961, when “5649” was shot down
by anti-aircraft fire over the port of Fuzhou in mainland China. The pilot, Major Wu Pao-tze, was captured and became a
POW. Subjected to brainwashing by his captors, Wu
later collaborated by a broadcast calling upon ROCAF Voodoo pilots by name to
defect to the mainland with their aircraft.
The damaged aircraft, “5652”, was repaired during the fall of 1961 and returned
to service, bringing the total strength back to four aircraft. As Chiang Kai-shek continued his plans to overthrow the Communist
government on the mainland and the Red Chinese continued work toward building
an atomic bomb, ROCAF reconnaissance aircraft continued to remain quite busy
conducting missions over the coastal areas of the mainland.
Nationalist Chinese operations with the RF-101A continued after the conclusion of the 1962
Taiwan Strait crisis in August of that year.
In early 1963, the first of three new RF-101As were transferred to Taiwan under MAP to take
the place of three of the original aircraft that were scheduled for depot-level
maintenance at Hill AFB. These aircraft,
“5650” (54-1500), “5652” (54-1503) and “5654” (54-1499) departed for the United
States via Kadena AB. The replacement
aircraft appear to have been 54-1501 (as “5651”), 54-1505 (as “5660”) and
54-1506 (as “5658”). At least the last
two aircraft had been modified with the small afterburner cooling inlet on the
leading edge of the vertical fin, as present on the RF-101C. This appears to have been a one-off
modification to allow the ROCAF RF-101A aircraft extended time in afterburner.
Tensions across the Taiwan Strait increased sharply with the
detonation of an atomic bomb by the Communist Chinese on 16 October 1964. Reconnaissance sorties by ROCAF RF-101A aircraft had begun to increase during the
summer of 1964. Meanwhile, Taiwan was in
the midst of transitioning from the RF-84F to the new RF-104G, which would become
operational with the 12th TRS in November 1964. The ROCAF suffered its second combat loss of
an RF-101A when “5651” (54-1501) was severely damaged by
a J-6 (MiG-19) “Farmer” interceptor over
Wenzhou, Zhejiang Province in late December 1964. Major Hsieh Hsiang-ho was captured by local fishermen after bailing
out of his stricken Voodoo just offshore and became a POW. Up to
that point, ROCAF RF-101As had completed 139 successful reconnaissance missions
over the Chinese mainland without being intercepted by Communist MiGs. A second loss to the speedy and powerful J-6 occurred on 18 March 1965 with the loss of “5656”
(54-1519) and the pilot, Lt. Col. Chang Yu-pao, who was killed in action.
His aircraft was shot down over the Taiwan Strait just offshore of
Guangdong, near Shantou. This would be
the last operational loss of a Nationalist RF-101A. Left with two operational RF-101A Voodoos that suddenly appeared vulnerable to
the MiG-19, on 22 April 1965 the Air Staff at Headquarters USAF reportedly ordered
that they be replaced in their role by RF-104G aircraft with the speed and acceleration to
evade the newer interceptors. However,
this account is disputed by Taiwanese sources.
Analysis of MAP records shows a sharp reduction in flying hours per
aircraft for the RF-101A after the losses, but by the late summer of
1965 this decision had either been rescinded or ignored by the ROCAF as RF-101A utilization returned to early 1965 levels. Both the RF-101A and RF-104G maintained a similar number flying hours per
aircraft through mid 1970, averaging roughly 60 hours per quarter, strongly
implying that the RF-101A was not superseded but rather complemented by
the RF-104G.
Although faster, the RF-104G carried only three 70-millimeter format KS-67A cameras in a trimetrogon configuration in the
forward fuselage in front of the engine.
The negatives were much smaller than the 9-inch by 9-inch negatives of
the KA-2 cameras carried by the RF-101A in the same arrangement. The RF-104G did not have any provision for a forward
oblique camera and could not conduct “dicing” missions as the RF-101A could.
The newer aircraft also had nothing even approaching the capabilities of
the split vertical KA-1 arrangement of the RF-101A. While the 70-millimeter cameras did offer
good resolution given their size, the area covered by the trimetrogon fan was
also deemed insufficient. However, the
retention of the KA-2 cameras in the ROCAF Voodoos restricted their
minimum mission altitude as had been the case for USAF aircraft during the
Cuban Missile Crisis. Using the A-9B
film magazines with no IMC capability, the RF-101A would have had a V/H ratio of about 0.26,
limiting their aircraft to a minimum altitude of about 1,700 feet at 400 knots
and 2,600 feet at its maximum speed of 637 knots. Overall, although the low-altitude
performance of the RF-104G was impressive, the opinion within the ROCAF
was that it was hampered by its camera system and seldom produced quality
results. The ROCAF RF-101A contingent was brought back up to four
aircraft by the end of 1965 with the return from Hill AFB of two of the
aircraft sent to the United States for maintenance. The third aircraft, 54-1503, was apparently
too far gone for economical repair and was not returned. This left the surviving ROCAF force as
consisting of 54-1499 (“5654”), 54-1500 (“5650”), 54-1505 (“5660”) and 54-1506
(“5658”), still serving with the 4th Tactical Reconnaissance
Squadron.
Chiang Kai-shek’s continued obsession with
“liberating” mainland China against clearly insurmountable Communist forces had
long ago become a source of friction with the United States, which had
committed to defend Taiwan against attack but would never approve of overt
military action to overthrow the regime of Mao Tse-tung. From an aerial reconnaissance standpoint, the
issue came to a head over the course of 1967.
On 13 January 1967, an RF-104G mission over the mainland led to an air battle
over the Taiwan Strait in which a pair of Red Chinese MiG-19s were downed by
F-104Gs covering the escape of the ROCAF reconnaissance aircraft. The day previously, another RF-104G
conducting a high-altitude mission over a coastal objective was pursued over
the Taiwan Strait for the first time by a pair of MiG-21 interceptors. This was followed in the late summer of 1967 by
the downing of a ROCAF U-2 over Quzhou in Jiaxing Province. These events soon led to the termination of
all CIA and US military-sponsored overflights of mainland China by ROCAF
reconnaissance aircraft. From this point
on, only peripheral missions using oblique photography would be approved. The last overflight of mainland China by a
ROCAF U-2 occurred on 16 March 1968.
Coincident with the planned retirement of the RF-101 from
the regular USAF, the Nationalist Chinese RF-101A force was reduced in the fall of 1970 from
four aircraft to one operational aircraft.
It would appear that the three retired ROCAF aircraft were retired to
provide equipment spares for the last remaining aircraft, 54-1500
(“5650”). Despite its age, the last
remaining RF-101A offered unique imaging capabilities that could
not be equaled by the RF-104G. This last aircraft remained operational with
the 4th TRS until the unit was deactivated in February
1973, when it was transferred to the 12th TRS for its last six
months of active service into the summer of 1973, when it was retired from
service on 1 August and later returned to the United States. RF-101A 54-1500 does not show up in AMARC records and
was apparently scrapped at Hill AFB. The
other three aircraft remained in Taiwan to become display aircraft, where they
remain at this writing.