00:00Hey everyone, and welcome to Positive Post.
00:03Today, we're diving into the fascinating and slightly bizarre story of the Avrocar,
00:07Avrocar vertical takeoff and landing aircraft project from the Cold War that looked like
00:12it came straight out of science fiction.
00:14The Avrocanada VZ9 Avrocar, a unique vertical takeoff and landing aircraft, was born from
00:21the ambition to innovate during the early Cold War.
00:24The Avrocar project was initiated by Avrocanada, influenced by the futuristic vision of John
00:29Jack Frost, a talented designer who joined the company in 1947 after stints at De Havilland
00:36and other British firms.
00:37Frost's prior work included significant contributions to the De Havilland Hornet, Vampire, and the
00:43Supersonic Swallow aircraft.
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00:51Frost's vision led to the formation of Avrocanada's special projects group SPG, a team of creative
00:58engineers working on avant-garde projects.
01:00The group initially operated in a secluded area of Avro's headquarters, known as the penthouse,
01:06and later moved to a more secure location, the Schaefer Building, to maintain the secrecy
01:11of their work.
01:12Frost was particularly intrigued by jet engine efficiency and sought to enhance compressor
01:17designs without complicating the engine structure.
01:20His innovations culminated in a unique pancake engine concept, where the engine was disc-shaped,
01:25with the compressor and turbine arranged around the outer rim, directing thrust outward.
01:31This design led the groundwork for Project Y, Avro's initial attempt at creating off-aircraft.
01:37The second prototype aircraft went to the U.S. Army Transportation Museum at Fort Est-East-Val
01:43and the first prototype Afrocar came to the National Museum of the U.S. Air Force in 2007.
01:50In 1953, the Royal Canadian Air Force and British Intelligence held a top-secret meeting in West
01:56Germany to investigate an enduring aviation myth.
01:59A German engineer claimed to have worked on a flying saucer for the Luftwaffe between 1944
02:05and 1945.
02:07Avro Canada's chief designer, John Frost, attended the meeting and cross-examined the engineer,
02:13who stated that the covert flying saucer achieved flight by generating a caution of thrust between
02:18itself and the ground.
02:20After successful tests, the saucer was destroyed, along with the drawings, to avoid capture by
02:25the Allies.
02:26History does not record what influence this meeting had on John Frost's designs, but soon
02:32Avro Canada would construct its own top-secret flying saucer.
02:35The second Avrocar prototype underwent flight tests that validated the wind tunnel tests.
02:41If it flew more than three feet above the ground, the Avrocar displayed uncontrollable pitch-and-roll
02:47motions, which the Avro engineers called hubcapping.
02:50The Avrocar could only reach a maximum speed of 35 miles per hour, and all attempts to end
02:56the hubcapping failed.
02:57The project was cancelled in December 1961.
03:01Frost first gained prominence as a designer with the De Havilland Aircraft Company in England
03:06during the Second World War, working on the Hornet and Vampire projects.
03:10After the war, he became interested in developing more efficient swept-back wings with the experimental
03:16BH-108 Swallow project.
03:18This development was cut short when, in 1946, a series of tragic jet crashes led De Havilland
03:25to switch production to commercial aircraft.
03:27Hoping to continue pushing the limits of aircraft speed and efficiency, Frost took a job as a project
03:33designer with Avro Canada, helping to develop Canada's first jet fighter, the CF-100 Canuck.
03:40Frost's work with swept-back wings taught him that the shape of an aircraft influenced its
03:45potential speed more than the power of its engines.
03:48In 1951, he envisioned a new aircraft design, a disc, totally aerodynamic on every side.
03:55The Avro executives were intrigued by the potential for a vehicle that could hover, take off and
04:00land vertically, and approach supersonic speeds in any direction.
04:04Frost handpicked a team of eight engineers to design Project Y, the flying saucer which
04:09would soon be known as the Avrocar.
04:11Three Continental J69 engines inside the Avrocar would power a gigantic turboretta, which directed
04:18thrust down toward the ground.
04:20Vents with variable position flaps around the outside edge of the disc opened and closed to
04:25produce thrust from the engines in whichever direction the pilot intended to fly.
04:29Even though many critics insisted that the Avrocar could never fly, the United States Air Force
04:35decided to fund the project in 1957.
04:38Two full-scale Avrocar prototypes were built, one for design testing at Avro Canada and the
04:44other for wind tunnel testing in California.
04:46Although capable of controlled flight at 90 cm, the Avrocar became unstable when flying more
04:52than a meter above the ground, a far cry from Frost's vision.
04:56After investing seven dollars, five million, the United States Air Force pulled out of the
05:01project.
05:02And, as secretly as it had begun, the Avrocar met its end.
05:07Frost maintained that a redesigned Avrocar would be capable of high-altitude flight, but
05:12to this day, no such vehicle exists.
05:14However, the Avrocar lives on in modern ground-cushion vehicles or hovercraft, which operate according
05:21to John Frost's radical design.
05:23Project Y aimed to develop a high-performance flare craft using Frost's innovative engine.
05:28The design was marked by its distinctive triangular delta wing, with the engine intake positioned
05:33centrally.
05:34Despite the promising design, Project Y faced financial constraints and lukewarm military
05:40interest, leading to limited funding and progress.
05:43In 1952, the Canadian Defence Research Board allocated 400,000 CAD to Project Y.
05:51By 1953, a wooden mock-up was completed, but further funding was elusive.
05:57Avrocar Narder's breakthrough came when Frost's work caught the attention of a visiting delegation
06:01of U.S. defence experts in 1953.
06:05Impressed by the innovative designs, the U.S. Air Force USAF took over funding for the project,
06:12designating it WS-606A and later Project 1794.
06:18Frost's experiments with the Co-Ando effect, which involves fluid flow following curved surfaces,
06:23led to the conception of the Avrocar.
06:26He theorised that directing engine exhaust over a disc-shaped aircraft would create lift,
06:31enabling VT capabilities.
06:33The Avrocar's design featured a central turbotor powered by three Continental J60-99 jet engines,
06:39intended to provide lift and thrust.
06:42Despite its innovative design, the Avrocar faced numerous challenges during development.
06:48The first prototype, completed in May 1959, encountered stability issues during hover tests.
06:54The aircraft's tendency to oscillate uncontrollably, dubbed hub-keeping, and other stability problems
07:01plagued early tests.
07:02Modifications, including the addition of stabilising holes and adjustments to the control system,
07:08were implemented to address these issues.
07:10Testing continued through 1960, with the Avrocar demonstrating limited success in hover and
07:16low-speed flight.
07:17However, stability issues persisted at higher speeds, and the aircraft's performance remained
07:23below expectations.
07:25The Avrocar's maximum lift was insufficient to sustain flight out-of-ground effect, a critical
07:30limitation for practical use.
07:32Despite these challenges, the U.S. Army and USAF continued to support the project, hoping
07:38to develop the Avrocar into a viable flying jeep for tactical operations.
07:43However, the project's escalating costs and technical difficulties eventually led to its
07:48cancellation in September 1961.
07:51The Avrocar, despite its shortcomings, remains a testament to the innovative spirit of the early
07:56Cold War era.
07:58It was a bold attempt to revolutionise the aircraft design, incorporating cutting-edge concepts like
08:03the core and the effect and advanced jet propulsion.
08:06Although the Avrocar never achieved operational status, it provided valuable insights into
08:12full technology and experimental aircraft design.
08:15Throughout its development, the Avrocar project was known by various names, reflecting its evolving
08:21purpose and funding sources.
08:23Avro-Canada referred to it as Project Y, while the USAF designated it WS-606A, Project 1794,
08:32and Project Silverbug.
08:34The final name, Avrocar, was adopted when the U.S. Army became involved, assigning it the
08:40designation VZ-9 in line with their two projects.
08:43The Avrocar story is one of ambition, innovation, and the challenges inherent in pioneering new technologies.
08:50It highlights the interplay between military needs and technological advancements during
08:55a period marked by rapid aerospace development.
08:58While the Avrocar itself was not a success, the lessons learned from its development contributed
09:03to the broader field of aircraft design and laid the groundwork for future innovations.
09:08What other strange or fascinating aviation projects would you like to hear about?
09:13Leave a comment below and let's discuss.
09:15Thanks for watching.
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