Quidora was one of four torpedo boats built in Spain for the Chilean Navy since 1962, based on the German FPB-36 Jaguar-class fast attack craft design by Lürssen Werft.

The original design of the German Jaguar-class fast attack craft included four Mercedes-Benz MB 518 B diesel engines, a speed of 42 knots (78 km/h; 48 mph) and a 700-nautical-mile (1,300 km; 810 mi) range of operation.

Lieutenant Prieto was retired from the navy after the incident by Chilean President Eduardo Frei.

She fired several warning shots when the Argentine craft refused to move, as other Chilean ships converged to the scene.

Of the four boats, Fresia is now exhibited within Embarcadero Tres Puentes at the Punta Arenas Naval Base.