14 février 2021
Une véritable soucoupe volante qui a bien existée
Avro Canada VZ-9 Avrocar The Avro Canada VZ-9 Avrocar was a VTOL aircraft developed by Avro Canada as part of a secret U.S. military project carried out in the early years of the Cold War. The Avrocar intended to exploit the Coandă effect to provide lift...