1964-1974 (North Vietnam)
The first North Vietnamese combat plane was a T-28 Trojan trainer, whose pilot defected from the Royal Lao Air Force; it was utilized from early 1964 by the North Vietnamese as a night fighter. The T-28 was the first North Vietnamese aircraft to shoot down a U.S. aircraft, a C-123, on February 15, 1964.
The North Vietnamese Air Force (NVAF) received its first jet fighter aircraft, the MiG-17 in February 1964, but they were initially stationed at air bases in Communist China, while their pilots were being trained. On February 3, 1964, the first fighter regiment No. 921 (Trung đoàn Không quân Tiêm kích 921), aka "Red Star squadron", was formed, and on August 6 it arrived from China in North Vietnam with its MiG-17s. On September 7, the No. 923 fighter regiment, aka "Yen The squadron", led by Lt. Col. Nguyen Phuc Trach, was formed. In May 1965, No. 16 bomber company (Đại đội Không quân Ném bom 16) was formed with Il-28 twin engine bombers. Only one Il-28 sortie was flown in 1972 against Laotian forces.
The North Vietnamese Air Force's first jet air-to-air engagement with U.S. aircraft was on April 3, 1965. The NVAF claimed the shooting down of two US Navy F-8 Crusader, which was not confirmed by US sources, although they acknowledged having encountered MiGs. Consequently, April 3 became "North Vietnamese Air Force Day". On April 4 the VPAF (NVAF) scored the first confirmed victories to be acknowledged by both sides. The US fighter community was shocked when relatively slow, post-Korean era MiG-17 fighters shot down advanced F-105 Thunderchief fighters-bombers attacking the Thanh Hoa Bridge. The two downed F-105s were carrying their normal heavy bomb load, and were not able to react to their attackers.
In 1965, the NVAF were supplied with supersonic MiG-21s by the USSR which were used for high speed GCI controlled hit and run intercepts against American air strike groups. The MiG-21 tactics became so effective, that by late 1966, an operation was mounted to especially deal with the MiG-21 threat. Led by Colonel Robin Olds on 2 January 1967, Operation Bolo lured MiG-21s into the air, thinking they were intercepting a F-105 strike group, but instead found a sky full of missile armed F-4 Phantom IIs set for aerial combat. The result was a loss of almost half the inventory of MiG-21 interceptors, at a cost of no U.S. losses. The VPAF (NVAF) stood down for additional training after this setback.
Meanwhile, the disappointing performances of US Air Force and US Navy (USN) airmen, even though flying the contemporary advanced aircraft of those times, combined with a legacy of successes from World War II and the Korean War, resulted in a total revamping of aerial combat training for the USN in 1968 (Top Gun school; established 1969). The designs for an entire generation of aircraft, with engineering for optimized daylight air to air combat (dog fighting) against both older, as well as for emerging MiG fighters, were being put to the drawing board. US forces could not consistently track low flying MiGs on radar, and were hampered by restrictive rules of engagement (ROE) which required pilots to visually acquire their targets, nullifying much of the advantage of radar guided missiles, which often proved unreliable when used in combat.
The VPAF (NVAF) was a defensive air arm, with the primary mission of defending North Vietnam, and until the last stages of the war, did not conduct air operations into South Vietnam; nor did the NVAF conduct general offensive actions against enemy naval forces off the coast. However it did conduct limited attacks on the opposing naval vessels, notably damaging the United States destroyer USS Higbee (DD-806) in 1972. In a separate incident, MiG-17s that ventured over water were shot down by surface-to-air missiles (SAMs) fired by U.S. warships.
The VPAF (NVAF) did not engage all US sorties. Most US aircraft were destroyed by SA-2 surface-to-air missiles or anti-aircraft artillery (AAA), and in some cases, even small arms. Typically, VPAF MiGs would not engage unless it was to their advantage. Some of the aerial tactics used were similar to Operation Bolo, which lured the NVAF to the fight.
On March 24, 1967, regiments Nos. 921, 923 and 919 were incorporated into the 371st Air Division "Thang Long" (Sư đoàn Không quân 371). In 1969, No. 925 fighter regiment was formed, flying the Shenyang J-6 (the Chinese-built MiG-19). In 1972 the fourth fighter regiment, No. 927 "Lam Son", was formed.
U.S. Navy ace Randy Cunningham believed that he shot down a Mig-17 piloted by the legendary "Nguyen Toon" or "Colonel Tomb" while flying his F4 Phantom (there's belief that "Nguyen Toon" has destroyed 13 USAF's fighter). However, no research has been able to identify any "Col. Tomb" as actually existing. Most likely he downed a flight leader of the 923rd Regiment. Many North Vietnamese pilots were not only skilled but unorthodox, as Cunningham found out after making elementary tactical errors. The resulting dogfight became extended. Cunningham climbed steeply, and the MiG pilot surprised Cunningham by climbing as well. Using his Top Gun training, Cunningham finally forced the MiG out ahead of him and destroyed it. In fact, there wasn't any pilot in VPAF named Nguyễn Toon, he was a fictional character of the American pilots and they often made jokes with the dissertation. As a goodwill of the American pilots, Colonel Toon was a combination of good pilots in Vietnam, like the "solo artist" lonely night bombing in World War II was called Washing Machine Charlie.
There were several times during the war that the U.S. bombing restrictions of North Vietnamese Airfields were lifted. Many VPAF (NVAF) aircraft were destroyed on the ground, and those that were not, were withdrawn to a sanctuary in China. In December 1972, the North Vietnamese air defences nearly exhausted their supply of surface-to-air missiles trying to down the high-flying B-52 raids over the North. The North Vietnamese Air Defense Network was degraded by electronic countermeasures (ECM) and other suppression of enemy air defenses (SEAD) measures. Though the North Vietnamese forces claim over 81 US aircraft as shot down during Operation Linebacker II, (including 34 B-52s, two attributed to the VPAF), most sources acknowledge only 27 aircraft lost by the Americans.
After the negotiated end of American involvement in early 1973, the No. 919 transport air group (Lữ đoàn Không quân vận tải 919), was formed; and equipped with fix-winged aircraft, as well as helicopters (rotor-wing) in November.
During The 1975 Spring Offensive, The Bombing of Tan Son Nhut Air Base, the only airstrike conducted by the VPAF, occurred on April 28, 1975, just two days before the Fall of Saigon. The operation was carried out by the VPAF's Quyet Thang Squadron, using captured A-37s aircraft flown by hero pilot Nguyen Thanh Trung who had bombed the Presidential Palace in Saigon, less than one month earlier before defecting to the north.
During the Vietnam War, NVAF used the MiG-17F, PF (J-5); MiG-19 (J-6), MiG-21F-13, PF, PFM and MF fighters. They claimed to have shot down 266 US aircraft, and US claimed to have shot down or destroyed 204 MiGs aircraft and at least six An-2s, of which 196 were confirmed with solid evidence (100 MiG-17s, 10 MiG-19s and 86 MiG-21s). However, VPAF admits only 154 MiGs were lost through all causes, including 131 in air combat ). Like that, total kill ratio would be 1:1.3 to 1:2. With the number of losses to MiGs confirmed by US (121 aircraft shotdown and 7 damaged), the kill ratio turn 1.7:1 against the MiGs, or 1.1:1 even accepting the VPAF's figure of only 131 in air combat.
Read more about this topic: Vietnam People's Air Force, History