Formed early 1962. In October 1963 flew XY prototype light helicopter, further developed with financial and technical assistance of shareholder SIAI-Marchetti. SH-4 (flown 1963 in XY prototype form and 1965 as SH-4) was first helicopter of all-Italian design and construction to receive both Italian and U.S. certification. By late 1960s serious production had begun as SIAI-Marchetti/Silvercraft SH-4, but under name Silvercraft alone deliveries began 1970. Production ceased 1977, as single example of SH-200 two-seater first appeared.