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putthoff
Topic Author
Posts: 34
Joined: Sun Mar 09, 2014 2:05 am

737 nose creases

Mon Jan 15, 2018 3:38 pm

What is the purpose of the creases on the nose of the 737? Looks like 320 also has something similar but not as pronounced. Thanks!
 
atlamt
Posts: 253
Joined: Thu Sep 13, 2001 12:15 am

Re: 737 nose creases

Mon Jan 15, 2018 4:15 pm

Without a picture it's just a guess but you are probably talking about the lightening diverter strips. The strips give the lightening a path to travel through and limit any damage to the composite radome.
 
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Florianopolis
Posts: 371
Joined: Sun Mar 29, 2015 2:54 pm

Re: 737 nose creases

Tue Jan 16, 2018 3:05 am

737:


A320:


Do you mean the folds above the corners of the cockpit windows?
 
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77west
Posts: 1020
Joined: Sat Jun 13, 2009 11:52 am

Re: 737 nose creases

Wed Jan 17, 2018 1:37 am

I think the lines on the nose cone itself are aerodynamic in nature?
 
KingOrGod
Posts: 193
Joined: Mon Jan 16, 2017 3:19 pm

Re: 737 nose creases

Wed Jan 17, 2018 9:44 am

atlamt wrote:
lightening


I think he means lightning...
 
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zeke
Posts: 16358
Joined: Thu Dec 14, 2006 1:42 pm

Re: 737 nose creases

Wed Jan 17, 2018 9:58 am

KingOrGod wrote:
atlamt wrote:
lightening


I think he means lightning...


Lightening protection is the reason why. On the Airbus aircraft, there is a difference between early and late models, the later models have more lightening protection strips on them as the weather radar changed. Early weather radar in Airbus aircraft did not have predictive wind shear, later models do, that required the material in the nose to be changed as the frequency the radar operates at is different.

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