Aircraft windows are round for structural safety reasons. Stress reduction: Rounded corners distribute air pressure more evenly across the fuselage, unlike square corners which concentrate stress and can crack the structure. History of disasters: This design was adopted after early airliners, such as the de Havilland Comet in the 1950s, experienced fatal accidents linked to the structural weakness caused by square windows. Pressurization: The oval shape helps the aircraft withstand the pressure difference between the inside and outside at high altitudes.
Most people will go their entire lives without ever knowing why airplane windows are round. Full article 👇 💬
