How did the B707 and DC-8 fight stress at the windows?

Question

As it is evident from this question, 4 (or 3) de Havilland Comets crashed because of stress building around the rectangular windows. How did DC-8 and B707 fight this problem, especially as it is quite clear that both of them had rectangular windows as well?

score 12 · Accepted Answer · edited Jul 02 '16 at 18:10

12

No, the Boeing 707 and the DC-8 used radiused corners on all their windows to avoid the problems of stress concentration factors, plus additional pad ups around the openings in the skins for the Windows themselves.

(Source)

edited Jul 02 '16 at 18:10

answered Jul 02 '16 at 17:59

Romeo_4808N

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How did the B707 and DC-8 fight stress at the windows?

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