Archived posting to the Leica Users Group, 2010/01/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Bill, I was taught that the reason for the metal fatigue problems oh the Comet was due to stress raisers caused by excessively square corners in the windows. Subsequent aircraft had much more radiused window apertures. I had not realised the cabin pressure was a significant factor in airframe stresses, I had always thought it was an economy measure... Something new learned today. thanks, Frank On 3 Jan, 2010, at 21:34, Sue Pearce wrote: > Current commercial aircraft are pressurized to about 8,000 feet, as that > is about as good as can be done without serious problems with metal > fatigue. We older members can recall the English learned a hard lesson > with their pioneering jetliner in just that subject.