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"Gordon" wrote:
I have experimented with plastic and found the corkscrew part of coke bottles very strong and cheap plastic It's strong *for plastic*. It's vastly weaker than any aeronautical structural material, like aluminum, titanium, or carbon graphite. if the plane crashed it would not disintegrate or catch fire and if it crashed at sea it would float and could be towed back to land by a ship. Since plastic is weaker than structural metals, a plastic plane would disintegrate even worse (or earlier) than a conventional aircraft during a crash. It would also burn more vigourously and loose strength as it heated up. http://www.scaled.com I came across this composite plastic website who make small plastic planes and who made the composite plastic space shuttles for Richard Branson. Scaled Composites is very very good at compsite prototypes (primarily aramid and carbon composites). Until recently, it was cost-prohibitive to use this technology for mass production of large aircraft. Boeing's 787 and Airbus's A350XWB will both make extensive use of composites. Don't forget though, it's the fibers, not the plastic, that gives you most of your strength. Tom. |
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Airliners shaped like Coke bottle tops? We're talking about the future
here.... Disposable transport. Tom Sanderson wrote: "Gordon" wrote: I have experimented with plastic and found the corkscrew part of coke bottles very strong and cheap plastic It's strong *for plastic*. It's vastly weaker than any aeronautical structural material, like aluminum, titanium, or carbon graphite. if the plane crashed it would not disintegrate or catch fire and if it crashed at sea it would float and could be towed back to land by a ship. Since plastic is weaker than structural metals, a plastic plane would disintegrate even worse (or earlier) than a conventional aircraft during a crash. It would also burn more vigourously and loose strength as it heated up. http://www.scaled.com I came across this composite plastic website who make small plastic planes and who made the composite plastic space shuttles for Richard Branson. Scaled Composites is very very good at compsite prototypes (primarily aramid and carbon composites). Until recently, it was cost-prohibitive to use this technology for mass production of large aircraft. Boeing's 787 and Airbus's A350XWB will both make extensive use of composites. Don't forget though, it's the fibers, not the plastic, that gives you most of your strength. Tom. |
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