Ambrosini took its 1939 S.7 racing aircraft as a starting point to develop a small series of experimental airplanes. This started with the implementation of swept wings and tail surface in the early 1950s, followed by fitting a jet engine to the still wooden taildragger airframe. The resulting Sagittario (Archer) was then followed in 1956 by this all-metal Sagittario 2 with tricycle gear. This was the first Italian aircraft to break through Mach 1. On display is the second prototype, a static test frame.

The prototype Sagittario II ("Archer") light jet fighter in Italian Air Force markings. Exhibited at the 1957 Paris Air Salon.