In the recent years, the commercial space transportation has gained considerable attention. The inaugural suborbital launch with horizontal take-off and landing of Virgin Galactic’s WhiteKnight Two (WK2) / SpaceShipTwo (SS2)”Unity” system occurred in September 2016. Following this first flight test, a series of further tests were conducted until the first commercial suborbital launch occurred in June 2023 at Spaceport America in New Mexico (USA). This marks the advent of a new era in commercial space transportation in the context of the New Space Economy. This thesis was conducted in collaboration with ENAC (the Italian National Civil Aviation Authority) with the aim of conducting preliminary investigations into the potential operations of future suborbital vehicles within the Italian territory.