Moderators: richierich, ua900, PanAm_DC10, hOMSaR
caoimhin wrote:
Noshow wrote:The 777 has had huge CFRP horizontal stabilisers (737 wing sized) for tens of years including under desert high temperature, salt spray and high UV light conditions. Did this never ever occur before? What is different today?
JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
BoeingVista wrote:caoimhin wrote:
A) didn't know it existed
B) Its reddit. Misidentifies the aircraft and then goes off on a tangent.
Avatar2go wrote:JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
Here is an older (2000) article from Boeing on aircraft painting and polishing. Painting is every 4 to 6 years. Polishing is done at least annually, or more frequently if needed. I suspect once the paint starts peeling, polishing is no longer effective. Since peeling is not an airworthiness concern, they use speed tape until the next painting cycle.
https://www.boeing.com/commercial/aerom ... 01txt.html
skipness1E wrote:Avatar2go wrote:JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
Here is an older (2000) article from Boeing on aircraft painting and polishing. Painting is every 4 to 6 years. Polishing is done at least annually, or more frequently if needed. Since peeling is not an airworthiness concern, they use speed tape until the next painting cycle.
https://www.boeing.com/commercial/aerom ... 01txt.html
BA have 3 2009 build B777s in their original delivery, that 4-6 years repaint window feels low.
LAX772LR wrote:JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
what's funny is that the aircraft from the flight I posted, departs at night..... so chances are, no pax really noticed it, until they were somewhere over the Amazon jungle and powerless to object, lol.
ReverseFlow wrote:Probably black
https://youtu.be/yWocCSl8bY0
But then it would probably heat up the wing more and cause your fuel inside to warm up what you don't really want either.
Ziyulu wrote:What if they just leave the wings unpainted. What color would it be?
BoeingVista wrote:caoimhin wrote:
A) didn't know it existed
B) Its reddit. Misidentifies the aircraft and then goes off on a tangent.
ReverseFlow wrote:Probably black
https://youtu.be/yWocCSl8bY0
But then it would probably heat up the wing more and cause your fuel inside to warm up what you don't really want either.
JannEejit wrote:From a pure professional point of view, quite why airlines let a plane with passengers on board see a sight like that is beyond me. It certainly creates a bad impression, regardless of what the situation *actually* is.
par13del wrote:A question, the 787 was in testing in all types of environment for a year or two before EIS, did the issue not appear during testing or did Boeing paint its test a/c with a different type paint that did not create this issue?
AirKevin wrote:I believe the correct term is speed tape.
par13del wrote:A question, the 787 was in testing in all types of environment for a year or two before EIS, did the issue not appear during testing or did Boeing paint its test a/c with a different type paint that did not create this issue?
ReverseFlow wrote:Probably black
https://youtu.be/yWocCSl8bY0
But then it would probably heat up the wing more and cause your fuel inside to warm up what you don't really want either.
Avatar2go wrote:
Here is an older (2000) article from Boeing on aircraft painting and polishing. Painting is every 4 to 6 years. Polishing is done at least annually, or more frequently if needed. Since peeling is not an airworthiness concern, they use speed tape until the next painting cycle.
celestar345 wrote:The heat will become an issue when you're sat on the ground at +40°C in Doha though.par13del wrote:A question, the 787 was in testing in all types of environment for a year or two before EIS, did the issue not appear during testing or did Boeing paint its test a/c with a different type paint that did not create this issue?
All types of environment TESTS but not real world - it's a much harsher world out there.
And in the aviation industry, you don't jump out with unproven ideas and implement unless it's a critical issue. Better take the time and gather as much information as possible and come up with a proper solution.
This paint issue has been going on for years and apparent around LN250 (can't remember the exact number) there is an improved paint package that should stand up better, how well does it do and how to implement on earlier LNs is another matter. So in the time being speed tape and repaint is the only measures you have got.
When I was last doing a C check on a 787 and see the wing paint peel from the tip of the vertical stabiliser my only discription is sepcticular....ReverseFlow wrote:Probably black
https://youtu.be/yWocCSl8bY0
But then it would probably heat up the wing more and cause your fuel inside to warm up what you don't really want either.
The heat is not a big deal when it's -56 degrees centigrade out there - it's the UV you got to worry about. Long UV exposure will degrade the resin in the CFRP.Avatar2go wrote:
Here is an older (2000) article from Boeing on aircraft painting and polishing. Painting is every 4 to 6 years. Polishing is done at least annually, or more frequently if needed. Since peeling is not an airworthiness concern, they use speed tape until the next painting cycle.
787 has a C-Check at 3 years interval, so 6 years is only a 2C Check.
par13del wrote:A question, the 787 was in testing in all types of environment for a year or two before EIS, did the issue not appear during testing or did Boeing paint its test a/c with a different type paint that did not create this issue?