<strong>Avro Canada Jetliner: </strong>Developed by Avro Canada for Trans-Canada Air Lines (TCA) in the 1950s, this jetliner had a top speed of 500 mph.
Avro Canada Jetliner: Developed by Avro Canada for Trans-Canada Air Lines (TCA) in the 1950s, this jetliner had a top speed of 500 mph.
Kenneth I Swartz Collection
<strong>Avro Canada Jetliner: </strong>However TCA lost interest when it became clear that the production version of the plane wouldn't meet its operational requirements and it was sold for scrap in 1956.
Avro Canada Jetliner: However TCA lost interest when it became clear that the production version of the plane wouldn't meet its operational requirements and it was sold for scrap in 1956.
Kenneth I Swartz Collection
<strong>Bristol Brabazon</strong>: At 175 feet long with a 230 foot wingspan, the Brabazon was one of the largest aircraft in the world.
Bristol Brabazon: At 175 feet long with a 230 foot wingspan, the Brabazon was one of the largest aircraft in the world.
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<strong>Bristol Brabazon: </strong>It made its maiden flight in 1949, but was considered too huge and uneconomical -- it could only hold 100 passengers -- and was unable to attract any orders.
Bristol Brabazon: It made its maiden flight in 1949, but was considered too huge and uneconomical -- it could only hold 100 passengers -- and was unable to attract any orders.
Topical Press Agency / Getty Images
<strong>Saunders-Roe Princess: </strong>This majestic creature of the sea and the air is still the largest all-metal flying boat ever built.
Saunders-Roe Princess: This majestic creature of the sea and the air is still the largest all-metal flying boat ever built.
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<strong>Saunders-Roe Princess: </strong>The Princess, which was constructed in the UK, first flew in August 1952. However, its only customer had already withdrawn support and the program was soon canceled.
Saunders-Roe Princess: The Princess, which was constructed in the UK, first flew in August 1952. However, its only customer had already withdrawn support and the program was soon canceled.
Jimmy Wilds / Keystone / Hulton Archive / Getty Images
<strong>Fairchild Dornier 728JET:</strong> This 70-seat prototype came very close to going into service. It was due to take its first flight in 2002, but Fairchild Dornier GmbH filed for insolvency just two weeks after the plane's rollout.
Fairchild Dornier 728JET: This 70-seat prototype came very close to going into service. It was due to take its first flight in 2002, but Fairchild Dornier GmbH filed for insolvency just two weeks after the plane's rollout.
JOERG KOCH / AFP / Getty Images