Just been reading about North Vietnam's SAM defences during the Second Indochina War with the US/South Vietnamese and Allies. The figures are interesting: 1965: 194 SAM launches. 11 US aircraft lost, a launch/hit ratio of 5.7%. In other words for every 1 downed aircraft it took over 17 missiles to register a hit. 1966: 1,966 SAM launches. 31 US aircraft lost, a launch/hit ratio of 1.2%. 63 missiles for every one hit. 1967: 3,202 SAM launches. 96 US aircraft lost, a launch/hit ratio of 3.0%. 33 missiles for every one hit. 1968: 322 SAM launches. 3 US aircraft lost, a launch/hit ratio of 0.9%. 107 missiles for every one hit. Linebacker Operations 1972: 4,244 SAM launches. 49 US aircraft lost, a launch/hit ratio of 1.15%. 87 missiles for every one hit. Apart from the blip of 1967, its clear to me that US tactics and ECM had gained the upper hand over the SA-2 after 1965. I'm sure it has been upgraded, but the SA-2 remains for many nations the backbone of their air defences - Vietnam, North Korea and China with their HQ-2 version cases in point. Given today's technology, its pretty certain to me that the percentages would be even smaller. Anyone know of SA-2's performance during the Gulf Wars with Iraq? One interesting thing additionally, the PAVN deployed the SA-7 MANPADS in the 1972 Eastertide offensive and although I don't have numbers launched, they did down 16 aircraft at the Battle of Quang Tri alone. I find that an astonishing figure for such a crude piece of kit. Figures from Colonel Harry G. Summers' 'Vietnam War Almanac', 1985.