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Wing Coloring/Shading  
User currently offlineunited319 From United States of America, joined Jul 2006, 541 posts, RR: 0
Posted (3 years 8 months 5 days 16 hours ago) and read 3721 times:
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Good Afternoon,

This is another random observation I have noticed on Airplanes. The wings have two different styles of colouring (in general). They either have the center part painted in a metallic grey color or the wing is all beige/white colored. It seems that certain carriers paint all of their wings in one way or another for the most part. For instance, UA has all white on their wings while NW has all grey coloring. I was told a long time ago it had to do with anti-icing on the wing, if that were the case, why would some carriers do this and others don't when they both fly into winter climates and encounter icing at cruise altitude.

Here are pics of the grey/metallic seen on an A319 and a 757.




Here is the all beige/white seen on an A319 and a 757.





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4 replies: All unread, jump to last
 
User currently offlinesoon7x7 From , joined Dec 1969, posts, RR:
Reply 1, posted (3 years 8 months 5 days 16 hours ago) and read 3705 times:

Actually the coating is an aluminized heat reflecting coating called coroguard. It reflects heat away from the torque box, (fuel tank) part of the wing. After market paintshops typically paint the wing all BAC 707 grey as Boeing has a specific part # for their coroguard and is proprietary. UA does normally paint their wings all BAC 707 gray. If you look up Akzo Nobel paint on google you will find a coating specific for each airframe manufacturer and for each application such as fuel cell coating, teflon non stick, or non chafe...etc. Their exist about 100 part #'s of topcoats for heavy transport aircraft. Boeing gray I believe comes in a bout 7-10 shades...just pick one next time you order a 757...g

User currently offlineunited319 From United States of America, joined Jul 2006, 541 posts, RR: 0
Reply 2, posted (3 years 8 months 5 days 14 hours ago) and read 3679 times:
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Quoting soon7x7 (Reply 1):
UA does normally paint their wings all BAC 707 gray

The BAC 707 gray i'm assuming is different than coroguard? All of UA's fleet accept the A320's that were not converted to Ted or Painted in NC do not have the aluminum coating on them. More pics of their wings on each a/c type are below. Their boeings used to have the aluminum coating but do not anymore. Same for all 319's and all 320's that are in the blue/white livery or the UniCon livery.

A319:


A320 (repainted):


A320 (one's that are still in battleship colors):


Boeing 747-422:


Boeing 757-222:


Boeing 767-322/ER:


Boeing 777-222/ER:



It's Time To Fly
User currently offlinesoon7x7 From , joined Dec 1969, posts, RR:
Reply 3, posted (3 years 8 months 5 days 14 hours ago) and read 3676 times:

I have noticed the trend towards BAC gray overall on A & B models...not sure why other than the newer BAC 707 gray is lighter and may offer the same or relatively same reflectance value. The gloss grey doesn't scuff as easily as coroguard also...airbus has its own version of airframe gray,...it is a bit lighter and a bit warmer than the latest BAC 707 gray. Can't tell the difference any way as so many manufacturers make the stuff...each has their own proprietary mix.

User currently offlineViscount724 From Switzerland, joined Oct 2006, 26021 posts, RR: 22
Reply 4, posted (3 years 8 months 5 days 11 hours ago) and read 3608 times:

Going back a few years, BEA's red-painted wings were unusual.


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