On the morning of 24 September 1958, a flight of Nationalist Chinese F-86 Sabres was climbing over the Taiwan Strait when a formation of Communist MiG-17 slid past — a little higher and, on paper, the better aircraft. Then the Sabres did something no fighter had ever done in anger. They fired missiles.

Tras dejar una estela de humo blanco, los pequeños misiles guiados por calor persiguieron a los MiG en sus giros y detonaron. En cuestión de minutos, el mundo presenció sus primeros derribos aire-aire con misiles guiados, y el combate aéreo cambió para siempre. El arma era el AIM-9 Sidewinder estadounidense, y su debut sobre el estrecho tendría un impacto que nadie en ninguna de las cabinas podría haber imaginado.

Porque unos días después, uno de esos misiles Sidewinder se clavó en un MiG-17. sin salirse de la pista — and handed the Soviet Union a free masterclass in missile design.

Una serpiente pequeña y barata con un ojo ardiente.

The Sidewinder was the pet project of William B. McLean, a physicist at the Navy’s China Lake test station in the California desert. While rival teams built big, complex, radar-guided missiles, McLean chased the opposite ideal: a weapon that homed on the heat of an enemy’s exhaust, with almost nothing to break. The result had barely two dozen moving parts and a gas generator instead of batteries. It was so simple that skeptics inside the Navy doubted it would even work.

Las primeras bajas de la era de los misiles

When the Second Taiwan Strait Crisis flared in 1958, Washington rushed a few dozen Sidewinders to Taiwan and sent a US team to bolt them onto the ROCAF’s Sabres. The MiG-17 could out-climb the F-86, so the Nationalist pilots had spent months being bounced from above. The missile flipped the maths. On 24 September, the Sabres let the MiGs cruise past and then fired — and the heat-seekers ran them down. It was the first time in history a guided missile had killed an aircraft in combat.

El arma fallida que armó al enemigo

Luego vino el giro inesperado: no había guiones de planificación de guerra. El 28 de septiembre, en otro enfrentamiento, un Sidewinder se estrelló contra un MiG-17 y simplemente... no detonó. The Chinese pilot nursed his jet home with a live American missile embedded in the airframe. Ground crews carefully extracted it — and once Moscow learned China had an intact Sidewinder, it pressed hard to get its hands on the prize.

What the Soviets received was, in effect, a finished blueprint. Their engineers copied the infrared seeker, the steering and the stabilisation and produced the Vympel K-13 — NATO codename AA-2 “Atoll” — which entered service around 1960. China built its own version as the PL-2. For decades, MiGs and their copies flew into battle carrying near-clones of the very missile once fired at them.

El arma que nunca se fue realmente

More than sixty years on, the Sidewinder still serves on the front line in its latest AIM-9X form, and its Soviet and Chinese offspring soldiered on for generations. Few weapons can claim to have opened an entire era of warfare on their first day in combat — and fewer still can claim to have armed both sides of the Cold War at once. It began with a handful of cheap, desert-built snakes fired over a narrow strip of contested water in 1958.

Fuentes: Wikipedia (AIM-9 Sidewinder; misil K-13; Segunda Crisis del Estrecho de Taiwán); The War Zone (TWZ); Museo Nacional del Aire y el Espacio; relatos contemporáneos. El número de bajas en la crisis de 1958 varía según las fuentes y se presenta según los informes.