Cockpit window shape

[yersin]

Hi,
I've been asked to tell why cockpit windows have corners and are not shaped as passenger windows. Are there special reaasons?

Thanks in advance..

[WHBM]

Think about your car windscreen - that has corners as well, so you can see all around clearly, no blind spots. Not such a criteria for pax at the cabin windows.

[yersin]

Thanks for answering. I've read that large windows with square corners could cause a fatigue crack to develope in the sharp corner of the window, and that's why windows should have round corners, but cockpit windows don't follow this principle. Why?

[Mech 320]

The corners of cockpit windows most certainly are rounded. A small radius is used in the corners as like you mentioned sharp corners can develop fatigue cracking.

[Tinstaafl]

Don't forget that you don't necessarily see the whole of the window because of the frame it's mounted in. Those hidden bits can hide the radius.