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"Eyebrow" Windows. What Was Their Function?  
User currently offlineGulfstreamGuy From United States of America, joined Jul 1999, 646 posts, RR: 1
Posted (1 year 2 weeks 4 days 22 hours ago) and read 5304 times:

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


"If we couldn't laugh, we would all go insane. " -Jimmy Buffett
13 replies: All unread, jump to last
 
User currently offlineViscount724 From Switzerland, joined Oct 2006, 25341 posts, RR: 22
Reply 1, posted (1 year 2 weeks 4 days 21 hours ago) and read 5284 times:

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)


User currently offlineMax Q From United States of America, joined May 2001, 4524 posts, RR: 18
Reply 2, posted (1 year 2 weeks 4 days 12 hours ago) and read 5084 times:

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)



The best contribution to safety is a competent Pilot.
User currently offlinemoose135 From United States of America, joined Oct 2004, 2323 posts, RR: 10
Reply 3, posted (1 year 2 weeks 4 days 6 hours ago) and read 4943 times:

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!
User currently offlineCALTECH From Poland, joined May 2007, 2242 posts, RR: 26
Reply 4, posted (1 year 2 weeks 4 days 5 hours ago) and read 4894 times:

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

http://media-cache-ec0.pinimg.com/736x/a1/b0/fc/a1b0fcad2bf24313d2cd4896ea6fd38c.jpg



UNITED We Stand
User currently offlineMax Q From United States of America, joined May 2001, 4524 posts, RR: 18
Reply 5, posted (1 year 2 weeks 3 days 23 hours ago) and read 4686 times:

Thanks guys, great pic's !


The best contribution to safety is a competent Pilot.
User currently offlineGulfstreamGuy From United States of America, joined Jul 1999, 646 posts, RR: 1
Reply 6, posted (1 year 2 weeks 3 days 22 hours ago) and read 4636 times:

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
User currently offlineCALTECH From Poland, joined May 2007, 2242 posts, RR: 26
Reply 7, posted (1 year 2 weeks 3 days 21 hours ago) and read 4596 times:

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.




UNITED We Stand
User currently offlineMax Q From United States of America, joined May 2001, 4524 posts, RR: 18
Reply 8, posted (1 year 2 weeks 3 days 18 hours ago) and read 4505 times:

That is a great photograph Cal Tech.


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



The best contribution to safety is a competent Pilot.
User currently offlineCALTECH From Poland, joined May 2007, 2242 posts, RR: 26
Reply 9, posted (1 year 2 weeks 3 days 5 hours ago) and read 4310 times:

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,....



UNITED We Stand
User currently offlinetb727 From United States of America, joined Jun 2005, 1597 posts, RR: 9
Reply 10, posted (1 year 2 weeks 3 days 5 hours ago) and read 4296 times:

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.



Too lazy to work, too scared to steal!
User currently offlineMax Q From United States of America, joined May 2001, 4524 posts, RR: 18
Reply 11, posted (1 year 2 weeks 2 days 14 hours ago) and read 4100 times:

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 !



The best contribution to safety is a competent Pilot.
User currently offlinePGNCS From United States of America, joined Apr 2007, 2825 posts, RR: 45
Reply 12, posted (1 year 2 weeks 2 days 2 hours ago) and read 3943 times:

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.


User currently offlineMax Q From United States of America, joined May 2001, 4524 posts, RR: 18
Reply 13, posted (1 year 2 weeks 1 day 17 hours ago) and read 3778 times:

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 !



The best contribution to safety is a competent Pilot.
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