GulfstreamGuy
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"Eyebrow" Windows. What Was Their Function?

Mon Sep 02, 2013 10:24 pm

Now that the newer planes are getting away from them, I kinda always wondered for what reason these eyebrow windows were designed. Did airline pilots really need to look above them that often? I'm pretty sure they didn't use them for dogfighting in a 737. I'm not trying to sound sarcastic and I am nowhere near being a pilot but it seems to me all those windows are good for is heating up the cockpit on a hot summer day and irritating the crew. That being said, I guess on a cold winter day it's nice to let a little sunlight into the cold cockpit. Anyway, just curious.

Jason
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Viscount724
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RE: "Eyebrow" Windows. What Was Their Function?

Mon Sep 02, 2013 11:10 pm

Many previous threads on this subject. A few here:
Eyebrow Windows On B737 (by HAWK21M Apr 17 2001 in Tech Ops)
Small Windows Above Cockpits (by Arsenal@LHR Jul 5 2002 in Tech Ops)
Aircraft "Eyebrow" Windows (by Cancidas Jul 11 2003 in Tech Ops)
Midwest's 717 Cockpit Windows (by Pl4nekr4zy Sep 14 2003 in Tech Ops)
737 Why No More Eyebrow Windows? (by Thrust Mar 8 2005 in Tech Ops)
737 Eyebrow Mod (by ZANL188 Nov 26 2006 in Tech Ops)
Reason For The 737 Higher Front Windows? (by Ps76 Jan 7 2007 in Tech Ops)
737NG Eyebrow Windows (by UltimateDelta Mar 21 2008 in Tech Ops)
Why No Extra "cockpit" Windows On The Top Of A-380 (by L1011CPH May 27 2008 in Tech Ops)
DC-9/MD-80/717 Eyebrow Plugs? (by SXDFC Apr 14 2009 in Tech Ops)
Why 'eyebrows' On Aircraft? (by Jetplaner Apr 16 2009 in Tech Ops)
MD 80 Top Windows (by Jtamu97 Sep 25 2009 in Tech Ops)
B737-300 Without Brow Windows (by LMML 14/32 Apr 15 2009 in Tech Ops)
Questions On 737 (by smartt1982 Apr 1 2011 in Tech Ops)
Why Boeing Stop Putting Eyebrows On 737s? (by 747400sp Dec 13 2011 in Tech Ops)
 
Max Q
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 8:18 am

They were handy when maneuvering in the pattern to land, especially, for example doing a right hand circuit from the left seat or vice versa.


You were able to see through these eyebrow windows on 'the low side' of the turn and gauge your progress quite well, ascertaining, for example whether to tighten up or space out your turn to final.


That was the only use I ever found for them on the B727, the rest of the time they were just an annoyance and we nearly always blocked them up with checklists, etc to stop the sun from beating down on you.


Also, i'm sure they were useful on the KC135 for visual references while tanking (of course this is basically the same cockpit)
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Moose135
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 2:28 pm

Quoting Max Q (Reply 2):
Also, i'm sure they were useful on the KC135 for visual references while tanking (of course this is basically the same cockpit)

Only when you were the receiver, and even then, we generally looked out the front windscreen...

http://www.moose135photography.com/US-Air-Force/Refueling-Missions/i-v5M3pkt/0/L/JM_KC-135_Receiver_Flight_August_1985_002.-L.jpg
KC-135 - Passing gas and taking names!
 
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CALTECH
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 3:09 pm

B-52 had plenty of windows to look out of,....

http://media-cache-ec0.pinimg.com/736x/a1/b0/fc/a1b0fcad2bf24313d2cd4896ea6fd38c.jpg
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Max Q
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 9:06 pm

Thanks guys, great pic's !
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GulfstreamGuy
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 10:14 pm

OK, that makes sense. Since I used to work around DC-9s and now around 737s, it was always just a curiosity thing to me. Thank you for your response.

Jason
"If we couldn't laugh, we would all go insane. " -Jimmy Buffett
 
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CALTECH
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RE: "Eyebrow" Windows. What Was Their Function?

Tue Sep 03, 2013 10:57 pm

When I rode the Instructor Pilot Seat between the two flying pilots, never gave a second thought to how screwed I would be during low level runs. Sitting in that non-ejection seat, one could watch the boom travel back and then hear the boom entering the receptacle. Then watching as the pilot flying refueling constantly made small corrections to keep the BUFF in the groove. Those windows above in the hatches let in a lot of light. All the windows had thermal radiation curtains, which back in the day were a pain in the rear. They have newer ones deployed now.

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Max Q
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RE: "Eyebrow" Windows. What Was Their Function?

Wed Sep 04, 2013 1:52 am

That is a great photograph Cal Tech.


Very impressive, you can just see the engines outboard of both Pilots shoulders.
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CALTECH
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RE: "Eyebrow" Windows. What Was Their Function?

Wed Sep 04, 2013 2:53 pm

Quoting Max Q (Reply 8):
That is a great photograph Cal Tech.


Very impressive, you can just see the engines outboard of both Pilots shoulders.

Those were some good times. All my photos of those times, including me flying the BUFF, were destroyed by the ex. Had some fantastic photos,....
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tb727
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RE: "Eyebrow" Windows. What Was Their Function?

Wed Sep 04, 2013 3:17 pm

Quoting Max Q (Reply 2):
That was the only use I ever found for them on the B727, the rest of the time they were just an annoyance and we nearly always blocked them up with checklists, etc to stop the sun from beating down on you.

That's funny, the other day I was doing a right hand visual and was like, crap, I wish I had the eyebrows still! We removed them from our whole fleet but 1 airplane and they are being covered up this month. It is nice not getting hit in the head with a map or checklist randomly during flight though.
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Max Q
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RE: "Eyebrow" Windows. What Was Their Function?

Thu Sep 05, 2013 6:29 am

Quoting CALTECH (Reply 9):
All my photos of those times, including me flying the BUFF, were destroyed by the ex.

Been there done that, you have my sincere empathy !

Quoting tb727 (Reply 10):

That's funny, the other day I was doing a right hand visual and was like, crap, I wish I had the eyebrows still! We removed them from our whole fleet but 1 airplane and they are being covered up this month. It is nice not getting hit in the head with a map or checklist randomly during flight though.

Yes they were really useful on those occasions !
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PGNCS
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RE: "Eyebrow" Windows. What Was Their Function?

Thu Sep 05, 2013 5:35 pm

Quoting tb727 (Reply 10):
Quoting Max Q (Reply 2):That was the only use I ever found for them on the B727, the rest of the time they were just an annoyance and we nearly always blocked them up with checklists, etc to stop the sun from beating down on you.
That's funny, the other day I was doing a right hand visual and was like, crap, I wish I had the eyebrows still! We removed them from our whole fleet but 1 airplane and they are being covered up this month. It is nice not getting hit in the head with a map or checklist randomly during flight though.

I never found them useful in the B-727, B-737, DC-9/MD-80 even in a cross-cockpit traffic pattern or circle. I view them as a nuisance in general and glad they are going away (though I doubt I will ever fly the B-737 again.) It's interesting to hear your viewpoints, though, as I genuinely cannot recall ever flying with anyone who found them useful, but I guess it's not as cut and dried as I thought.
 
Max Q
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RE: "Eyebrow" Windows. What Was Their Function?

Fri Sep 06, 2013 3:07 am

Quoting PGNCS (Reply 12):

I never found them useful in the B-727, B-737, DC-9/MD-80 even in a cross-cockpit traffic pattern or circle. I view them as a nuisance in general and glad they are going away (though I doubt I will ever fly the B-737 again.) It's interesting to hear your viewpoints, though, as I genuinely cannot recall ever flying with anyone who found them useful, but I guess it's not as cut and dried as I thought.

I agree, overall they are a PITA !
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