FlapsAndSlats
Topic Author
Posts: 2
Joined: Wed Jan 30, 2008 12:46 am

1" Thick Piece Of Glass From A 707, 747?

Fri Feb 01, 2008 8:45 pm

I'd like to know if this piece of glass a friend brought me could have been on the navigation lighting system of an airliner. It's clear and about 1" thick. It's just a broken piece but has the right curves and all indicating that the total part could be the right size. Are these glasses really that thick? I thought these would always be polycarbonate!
 
A342
Posts: 4017
Joined: Sun Jul 31, 2005 11:05 pm

RE: 1" Thick Piece Of Glass From A 707, 747?

Fri Feb 01, 2008 9:16 pm

I think a photo would be helpful.
Exceptions confirm the rule.
 
fr8mech
Posts: 6813
Joined: Mon Sep 26, 2005 9:00 am

RE: 1" Thick Piece Of Glass From A 707, 747?

Fri Feb 01, 2008 9:39 pm

Nav light lens...1" thick? No. Nav light lenses, depending on material, run around the 1/8" to 1/4" thick range. Glass on the older aircraft, plastic on newer ones.

[Edited 2008-02-01 13:48:31]
When seconds count...the police are minutes away.
 
CosmicCruiser
Posts: 2055
Joined: Tue Feb 22, 2005 3:01 am

RE: 1" Thick Piece Of Glass From A 707, 747?

Fri Feb 01, 2008 9:45 pm

sounds like a piece of a glass insulator on a power line.
 
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HAWK21M
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Joined: Fri Jan 05, 2001 10:05 pm

RE: 1" Thick Piece Of Glass From A 707, 747?

Sat Feb 02, 2008 9:17 am

Is this a piece of the windshield.
Any pic.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
FlyASAGuy2005
Posts: 3965
Joined: Sun Sep 23, 2007 4:55 am

RE: 1" Thick Piece Of Glass From A 707, 747?

Sat Feb 02, 2008 3:12 pm

A pic would be very helpful  Smile
What gets measured gets done.
 
474218
Posts: 4510
Joined: Mon Oct 10, 2005 12:27 pm

RE: 1" Thick Piece Of Glass From A 707, 747?

Sat Feb 02, 2008 3:47 pm



Quoting HAWK21M (Reply 4):
Is this a piece of the windshield.

Windshields are made of acrylic plastic with a thin (0.050 to 0.080 inch) glass over lay on the outer surface.
 
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HAWK21M
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RE: 1" Thick Piece Of Glass From A 707, 747?

Sat Feb 02, 2008 5:00 pm



Quoting 474218 (Reply 6):

with no pic its all guess work  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
FlapsAndSlats
Topic Author
Posts: 2
Joined: Wed Jan 30, 2008 12:46 am

RE: 1" Thick Piece Of Glass From A 707, 747?

Sat Feb 02, 2008 5:27 pm

I'll get the pic and post it!
Thank you guys!
 
411A
Posts: 1788
Joined: Mon Nov 12, 2001 10:34 am

RE: 1" Thick Piece Of Glass From A 707, 747?

Wed Feb 13, 2008 12:51 am



Quoting 474218 (Reply 6):
Windshields are made of acrylic plastic with a thin (0.050 to 0.080 inch) glass over lay on the outer surface.

While this is true of new(er) aircraft, older aircraft, the Boeing 707 specifically, used several layers of glass and acrylic 'sandwich' with glass on both outer layers.
This was called NESA, and was also used on piston engine and many older turbopropeller types as well.
 
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HAWK21M
Posts: 30002
Joined: Fri Jan 05, 2001 10:05 pm

RE: 1" Thick Piece Of Glass From A 707, 747?

Wed Feb 13, 2008 8:25 am

Any pics yet?
regds
MEL.
I may not win often, but I damn well never lose!!! ;)

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