Cedric Lee seated in the cockpit of the Lee-Richards Annular Monoplane No I, Shoreham, November 1913.

Самолёты на фотографии: Aircrafts on the photo: Lee-Richards annular monoplane - ВеликобританияUnited Kingdom - 1913

Previously-secret USAF documents, released in 1995 under the US Freedom of Information Act showed that Avro Canada was developing two flying saucer designs in 1954. Code-named Silver Bug, one of the projects had a requirement for a maximum speed of Mach 3.5 and service ceiling in excess of 80,000ft. This rather unlikely scenario shows a Silver Bug slicing through a Tu-95 Bear. The flying disc would have had hardened leading edges and the attack would be at high sub-sonic speed.

Самолёты на фотографии: Aircrafts on the photo: Avro Canada VZ-9 Avrocar - КанадаCanada - 1959

Several variants of the WS-606A were studied by Avro Canada, including this finless, four-engine layout. The WS-606A was planned to be supersonic, have a vertical take-off and landing capability, and could have been configured as an interceptor or light bomber. Of interest to the RCAF and USAF, some of the funding was provided from the Pentagon's 'black' budget. After hundreds of hours of wind tunnel testing the project was eventually cancelled in 1960.

Самолёты на фотографии: Aircrafts on the photo: Avro Canada VZ-9 Avrocar - КанадаCanada - 1959