AIT meaning in Space Science ?

Aeritalia was an aerospace engineering corporation based in Italy. It was formed out of the merger of two aviation companies, Fiat Aviazione and Aerfer, in 1969.

Aeritalia continued several programs of its preceding companies, perhaps most prominently the Fiat G.222 transport aircraft. Furthermore, the company was involved in various multinational programs and initiatives, including the European multirole aircraft Panavia Tornado, the ATR family of regional airliners, and the fighter-bomber AMX International AMX. Aeritalia was also a partner in the Boeing 767 from its inception, and played a key role in the creation of the Italian space industry, being involved in the Alfa rocket. In 1990, Aeritalia and Selenia were merged at the behest of parent corporation Finmeccanica to create Alenia Aeronautica, an aerospace and defense specialist.