According to a report released by the Swedish International Peace Research Institute (SIPRI), they only registered Vietnam orders for R-73 infra-red short-range air-to-air missiles to arm the Su-27 and Su-30MK2 fighter jets purchased from Russia, as reported from the Bao Dat Viet page.
However, facts based on pictures have appeared in the media indicating that Flanker Vietnam during air defense missions, besides being equipped with R-73 missiles, also pinned a medium-range air-to-air missile guided by R-27ER radar hanging under the wing.
Compared to the R-73 missile, the R-27ER has a range of up to 130 km, 4 Mach speed, while the R-73 range is only 30 km and 2.5 Mach speed, but the weakness of the R-27 is its low maneuverability, with a maximum load of 8 G.
In addition to the two types of air-to-air missiles, there are reports that Vietnam is one of Russia's most advanced missile owners, the R-77 known as RVV-AE.
The R-27 and R-77 missiles have the same range between 90 – 175 km on the R-77M1, a maximum speed of 4 Machs, but the R-77 probe are far more sensitive than the R-27. The advantages of the R-77 are onmaneuverabilityy, which is up to 150 degrees per second (maximum).
Recently, the Vietnam National Defense Television (QPVN) reported that a training session on the removal of aircraft fire extinguisher status in the 935 Regiment appeared to be R-77 missile mounted on the Su-30MK2 fighter jet.
The picture above reaffirms that the Su-30MK2 information from the Vietnam Air Force is equipped with the world's leading air-to-air weapons, creating significant advantages when implemented with anti-aircraft missions.
It is unclear whether the R-77 version owned by Vietnam is the basic version or variant of the R-77M1, however, it is still good news for military lovers there who know that the Su-30MK2 and Su-27 have reached optimal levels.
Three air-to-air missiles, including the R-27, R-73, and R-77, allowed Vietnamese Air Force pilots to choose the right weapon when engaging in different targets. In a more flexible way to drop targets and save missiles at optimal levels.