UFOs Above

This declassified cover image from a 1956 document titled "Project 1794, Final Development Summary Report" shows an artist's concept of U.S. Air Force plans for a flying saucer. Built by Canada's Avro Aircraft, the saucer was supposed to fly at speeds of up to Mach 4. But apparently, it barely got off the ground.
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Photo by: National Archives / Caption by:

Alien schematics?

The saucer was to be powered by a large central turbine, and generate lift and thrust from the Coanda effect, which governs the behavior of fluid jets.
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Photo by: National Archives / Caption by:

Under the hood

The 1956 plans show that the saucer would have room for one pilot. The craft was designed to have a range of more than 1,000 nautical miles.
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Photo by: National Archives / Caption by:

The price of a saucer

This declassified report by Avro Aircraft of Canada cites the costs for the saucer development program at $3.16 million for 18 to 24 months. The sum is about $26 million today.
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Photo by: National Archives / Caption by:

UFO factory

Avro had built the controversial Arrow supersonic interceptor, which was abruptly cancelled in 1959. Project 1794, the plan to build a flying saucer for the U.S. Air Force, never got beyond the testing phase.
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Photo by: Wikimedia / Caption by:

The long-lost Avrocar

Project 1794 was a variant of the Avrocar, a smaller saucer that Avro was building for the U.S. military amid Cold War tensions. It fared poorly during tests and was ultimately canceled in 1961.
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Photo by: Wikimedia / Caption by:
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