30 "Ñancú" was an Argentine twin piston engined fighter designed by the Instituto Aerotécnico (AeroTechnical Institute) in the late 1940s, similar to the de Havilland Hornet,[1] but made of metal rather than wood.

30 "Ñancú", named after an indigenous eagle of Patagonia, was designed by Italian engineer Cesare Pallavicino, who had come to Argentina in 1946.

Pallavicino led a team of Argentine technicians and engineers in developing the concept of a high-speed escort fighter, intended to be operated in conjunction with the Avro Lincoln bombers used in the Argentine Air Force.

30 had a metal structure, its powerplants consisted of two Rolls-Royce Merlin 604 engines, each developing 1,800 hp at 3,000 RPM, and four-bladed propellers.

The test results proved that the aircraft possessed good flying characteristics as well as meeting performance specifications.