by chnhrr
Thanks Statkowski
I was wondering if this had a structural reason. It was probably a more expensive window detail which other railroads, including the New Haven and many interurban companies chose not to use. Glass did improve overtime including the development of laminated and tempered glazing.
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As for the Comet, the square windows help caused excessive shear stresses and metal fatigue to develop in the fuselages which resulted in the metal skin fracturing under pressure. The resulting structural failures were compounded by the fact that the skins were of insufficient gauge to take the stresses and that the method of punch riveting used by de Havilland in the manufacturing process induced further skin cracking.
I was wondering if this had a structural reason. It was probably a more expensive window detail which other railroads, including the New Haven and many interurban companies chose not to use. Glass did improve overtime including the development of laminated and tempered glazing.
-
As for the Comet, the square windows help caused excessive shear stresses and metal fatigue to develop in the fuselages which resulted in the metal skin fracturing under pressure. The resulting structural failures were compounded by the fact that the skins were of insufficient gauge to take the stresses and that the method of punch riveting used by de Havilland in the manufacturing process induced further skin cracking.