Date: 30 Jan 97 00:36:22 From: firstname.lastname@example.org (Ostreger) Organization: AOL, http://www.aol.co.uk Followups: 1
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How do the new blended-body airliners claim to handle pressurisation loads? I've been a flying-wing fanatic for decades and still I don't know how FW airliners can work. Yes, the aerodynamic advantages are real, and yes, modern avionics - fly-by-wire - take care of the stability snags. There's still pressurisation. The standard 8psi is upwards of half a ton per square foot - and those blended-body birds have around 3,000 square feet of cabin ceiling/floor. This means near on a couple of thousand tons is trying to tear one apart, distorting it and - critically - fatiguing it. (Conventional airliners have an equivalent problem, but their circular fuselage does not distort with pressurisation - though the Comet III exploded nonetheless!) Such loads can be handled, but the structure to do it this so heavy that the other benefits look to be totally outweighed.