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Frigate Ecojet

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posted on Feb, 11 2016 @ 11:28 AM
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I thought that the problem with the elliptical cross-section was that it had to be made stronger to handle pressurization than a cylindrical cross-section. The increased strength comes at a weight penalty that offsets any gain from the lift that it allows.




posted on Feb, 11 2016 @ 11:53 AM
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a reply to: JIMC5499

That used to be true. New composites and materials make it more feasible now.



 
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