An investigation into the aircraft designated as the Ca.66, associated with the ICAO type code CA2, reveals a total absence of documentation within authoritative aviation records. According to the ICAO Doc 8643 aircraft type designator listing (Part 2), the code 'CA2' is not listed as a designator for any aircraft. This omission is mirrored in other primary regulatory databases, including Transport Canada’s Standard 421.40—Aircraft Type Designators for Individual Type Ratings—and the FAA Order 7360.1D, both of which define recognized ICAO and FAA type codes for operational use but contain no entry for 'CA2'.
Further analysis suggests that the designation may be the result of confusion with other similar aircraft identifiers. For instance, the ICAO decode list includes the code 'CL-66' for the Canadair CC-109 Cosmopolitan, a twin-turboprop transport aircraft. While the CL-66 is a documented type, it is distinct from the 'CA2' or 'Ca.66' designation. Additionally, while historical manufacturers such as Caproni, CANT, and Savoia-Marchetti frequently utilized 'Ca.' or 'C.' prefixes followed by two-digit numbers for their aircraft, standard reference lists of these manufacturers' types do not include a 'Ca.66' that corresponds with a modern ICAO code.
Because no type-certificate data sheets (TCDS) or primary historical references exist for a Ca.66 matching the CA2 code, there is no verifiable data regarding its production years, quantity built, or manufacturing locations. Technical specifications, including engine models, power output, and performance metrics such as speed and range, are likewise undocumented. There is no evidence of military or civil service, and no museum or registry entries indicate the existence of any surviving airframes. Consequently, the Ca.66 (CA2) is not recognized as a certified aircraft type in any major regulatory or historical aviation database.