Re: Cockpit Windows

Date:         20 Jan 98 01:29:34 
From:         Das Pork <daspork@ibm.net>
Organization: IBM.NET
References:   1
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While the celestial navigation angle sounds interesting, I'm not sure I
agree with it. I'd lean towards the viewing area theory as to why the
eyebrow windows are installed. These windows are generally if I recall
on narrow body aircraft which tend to have much smaller cockpit windows.
If you've ever sat in the front seats of an L-1011, 757/767, 747 or
really any wide body, you'd see there's really a very large viewing area
through the windows. The 727 and DC-9/MD-80 series for example, are
pretty difficult to see out of relative to the larger aircraft.

Also even the older 747's for example, had a smaller window in the
ceiling of the cockpit (not above the pilot's) that the fourth (fifth?)
crew member, the Navigator, used to sight with a sextant for celestial
navigation. I don't know that smaller aircraft like the 727 and DC-9's
were used to go such long distances away from navaids, that celestial
navigation was ever a general operating issue for them. Aircraft old
enough to have been built with Navigator's in mind, often had such
small, specialized ceiling windows for celestial navigation.

Of course that's just my opinion, I could be wrong.