Marcelo Ribeiro marks the 50th anniversary of the US Navy’s iconic dissimilar air combat training squadron – TOPGUN – in 2019 by exploring its formative years

In the late 1960s the US Navy (USN) faced a huge challenge. As the war in Southeast Asia advanced, the number of aircraft shot down by the navy compared with those of the enemy had decreased, year on year. From 1965- 68, US government restrictions on actions against Vietnam meant the ratio dropped to the lowest of any air war; by no means a comfortable position for the Pentagon.
During World War Two, USN aviators in the Pacific theatre gained a proportion of 15:1 against the Japanese.
Through the Korean war this fell to around 10:1 but was still considered a reasonable figure.