De-icing an aircraft on the ground is crucial when there are freezing conditions and precipitation. Frozen contaminants cause critical control surfaces to be rough and uneven, disrupting smooth air flow and greatly degrading the ability of the wing to generate lift, and increasing drag. This situation can cause a crash. Furthermore, large pieces of ice may separate when the aircraft is in motion and can be ingested in engines or hit propellers and cause catastrophic failure. Frozen contaminants can also jam control surfaces, preventing them from moving properly. Because of this potentially severe consequence, de-icing is performed at airports where temperatures are likely to be around 0°C (32°F).
De-icing on the ground is usually done by spraying aircraft with a de-icing fluid based on propylene glycol, similar to ethylene glycol antifreeze used in some automobile engine coolants. Ethylene Glycol (EG) is still in use for aircraft de-icing in some parts of the world because it has a lower operational use temperature (LOUT) than Propylene Glycol (PG), but PG is more common because it is classified as non-toxic, unlike Ethylene Glycol.
In this photo, our plane was being de-iced at Pittsburgh International Airport right before taking off for Las Vegas in March 2010.
Donma koşulları ve yağış olduğunda bir uçağın yerde buz-çözümü önemlidir. Dondurulmuş kirletici maddeler kritik kontrol yüzeylerinin pürüzlü ve düzensiz olmasına neden olarak düzgün hava akımını bozar ve büyük ölçüde kanatların kaldırma üretme yeteneğini azaltıp hava direncini arttırır. Bu durum bir kazaya neden olabilir. Ayrıca, büyük buz parçaları uçak hareket halindeyken ayrılabilirler ve motorlarca yutulabilir veya pervanelere isabet edip katastrofik aksamaya neden olabilirler. Dondurulmuş kirleticiler ayrıca kumanda yüzeylerinde sıkışabilip düzgün hareket etmelerini engelliyebilir. Bu potansiyel ciddi sonuçlar yüzünden, buz-çözümü sıcaklıkların 0° C (32° F) olması muhtemel olan havaalanlarında gerçekleştirilir.
Yerde buz-çözümü genellikle uçak bazı otomobil motor soğutucuların kullanılan etilen glikol antifrize benzer propilen glikole dayalı buz-çözümü sıvısı ile püskürtülerek yapılır. Propilen glikolden (PG) daha düşük operasyonel kullanım sıcaklığı (DDOKS) olan etilen glikol (EG), dünyanın bazı bölgelerinde uçakların buz-çözümü için hala kullanımdadır, ancak PG daha yaygındır çünkü etilen glikol aksine, bu toksik olmayan diye sınıflandırılır.
Bu fotoğrafta, uçağımıza Mart 2010da Las Vegasa kalkıştan tam önce Pittsburgh Uluslararası Havalimanı'nda buz-çözümü uygulanıyordu.
Critiques | Translate
RhodieIke (11744) 2014-01-21 21:14
That's how they de-ice a plane hey, always wondered how they did.
Love the rainbow, well managed through the window.
Interesting note, Tfs,
holmertz (54961) 2014-01-22 3:15
This is a very bright and eye-catching photo with very good clarity and sharpness, especially considering it was taken through a thick airplane window. There's a superb contrast of yellow and blue and the very small rainbow is a real beauty.
saxo042 (37902) 2014-01-22 7:24
The yellow cabin is a good balance to the wing here. A diagonal "rainbow" keeps these two parts together. A well observed situation!
ikeharel (73549) 2014-01-22 7:31
An action that must be done before any filght on a snowy conditions, well collected from within the aircraft, Murat.
The rainbow is a nice bonus. Nicely collected the face expression of the operator.
Subhogen (4067) 2014-01-22 10:06
Nice educative shot and note. Never knew about this hi-tech process. Nice quality of photo specially when taken through the plane window glass. I like the contrasts between the control cabin and the sky. The little rainbow is also interesting. Thanks for sharing something new.
Corry (4508) 2014-01-22 11:38
Belle prise de vue de cette scène de déglaçage avec un arc-en-ciel en prime. Bonne netteté de l'image. Note très intéressante. Bien fait.
jcpix (13930) 2014-01-22 18:30
Even knowing this works, it still makes me nervous to see whenever flying in these conditions. Love the spontaneous capture, something we can most likely all relate to at some point or another. A bonus effect with the rainbow, at least there's something to be cheerful about when looking out this window at the cold wintery tarmac. :) Nice observation, and a surprisingly clear and scratch free look from the inside. Have a great day ahead.
mirosu (16273) 2014-01-22 19:21
Excellent action photo taken from airplane window. I've witnessed this important activity many times, sometimes reason for flight delay. You have captured the liquid spray with the rainbow very well.
EstudioChispa (2176) 2014-01-23 10:53
What a great (and TIMELY!) image! Well done, Murat!
ourania (47784) 2014-01-23 14:46
a very attractive and interesting image, I had never seen this procedure before. Your note provides very useful information and your presentation is accurate and fascinating. I like very much how you used the vertical frame, arranging the elements and perspectives in a neat and appealing way. There's fine depth, beautiful light and colours. The rainbow is dynamic and lovely, a real treat in a technical theme like this. Congratulations and thank you!
All the best, have a lovely day,
kato (11630) 2014-01-24 1:04
You're capturing well this de-icing cene by a good composition and excellent tone/clarity, so it's interesting and impressive to see the spectacle in which the worker who rode on the lift has injected Ethylene Glycol on wings for de-icing. You catch its good moment. And, the rainbow through the spray draws out a good impact and bonus.
jemaflor (99075) 2014-01-24 9:04
Interesting view well framed, lovely light and rainbow, wemll made, tfs.
jmdias (65561) 2014-01-30 15:49
a curious job and a perfect image to show how it is done. I liked the precious framing here.
adores (45877) 2014-02-16 14:05
Good scene! You framed it very well and colours are very good also. I like the effect of the spray. You had a really good pov here!