@amazeifystore: The Comet’s fatal crack didn’t start at a passenger window. ✈️ Investigators traced the 1954 disaster to fatigue cracking near a sharp-cornered roof opening. Every flight stretched the fuselage skin, allowing the crack to grow until the structure tore. A powerful reminder: tiny stress points can matter. What engineering lesson stands out to you? #AviationHistory #Engineering #AircraftDesign #AviationSafety #FatigueFailure #StructuralEngineering #DeHavillandComet #STEM