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Orange JetBlue De-Ice Picture & Question  
User currently offlineDIA From , joined Dec 1969, posts, RR:
Posted (11 years 2 months 1 week 4 days 2 hours ago) and read 6092 times:


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Photo © Daniel Wojdylo



I guess I've never noticed after all these years . . . but, are all de-icing formulas the same, or not? I've never noticed orange foam at DEN. Are there different applicants for different temperatures, or different cities/airports?

Cheers

38 replies: All unread, showing first 25:
 
User currently offlineContrails From , joined Dec 1969, posts, RR:
Reply 1, posted (11 years 2 months 1 week 4 days 2 hours ago) and read 6023 times:

I've never seen orange de-icing solution either. I was at ORD a few weeks ago when AA was de-icing some planes and it was certainly not orange. It appeared to be clear.


User currently offlineLindy From , joined Dec 1969, posts, RR:
Reply 2, posted (11 years 2 months 1 week 4 days 2 hours ago) and read 6007 times:

Here at IAD and DCA the mixture is orange as well. Also when I was at ZRH last year I've noticed that most of Swiss aircrafts had that orange thing on them.

Rafal


User currently offlineBestWestern From , joined Dec 1969, posts, RR:
Reply 3, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5892 times:

Havent they started using the Orange colorant as a visable sign to show where they have de-iced as another fail safe mechanism?

User currently offlineDIA From , joined Dec 1969, posts, RR:
Reply 4, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5859 times:

"Havent they started using the Orange colorant as a visable sign to show where they have de-iced as another fail safe mechanism?

That's a great idea if it's true.

Looking at the other responses and the pic location in Buffalo got me to thinking. . .if it isn't just to "show" where the de-icer has been sprayed, maybe they use it sometimes in more humid areas? Probably not, but I thought I'd get that thought out there. . .


User currently offlineElwood64151 From , joined Dec 1969, posts, RR:
Reply 5, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5813 times:

After working at MCI, I wasn't aware that there was another color for de-ice fluid...

User currently offlineSjoic From , joined Dec 1969, posts, RR:
Reply 6, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5772 times:

Orange glycol is usually ethylene based. There are many manufacturers of deicing fluid. They either make propelyne or the ethylene based glycols. I believe the manufacturers actually dye the fluid, but there is a pretty consistent approach to that... Jeff

User currently offlineGoose From , joined Dec 1969, posts, RR:
Reply 7, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5739 times:

Type I De-Ice fluid is orange in color, and is mixed 50/50 with water if I recall (it's been a while since I took that course). It's been orange for as long as I can remember. It's "served" hot, and is used to remove contaminants (accumulated snow) from wings and control surfaces.

It's not so much a "foam" as it is an airated spray coming out of the hose (somewhat like water out of a fire hose nozzle), so it can look foamy going onto the surfaces of the plane.

Type IV Anti-Ice fluid is green in color, and has the consistancy somewhat similar to Palmolive dish soap, somewhat thicker. It's "served" colder and at lower pressure than Type I, and is used (actually, it's sort of "sprinkled on," depending on the competancy of the operator) after Type I application to prevent further accumulation of contaminants on taxi and runway take-off.

[Edited 2003-12-22 17:37:06]

User currently offlineElwood64151 From , joined Dec 1969, posts, RR:
Reply 8, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5717 times:

Goose:

It is a 50/50 mix... I'd never seen Type IV, we'd only used Type I at Vanguard...


User currently offlineGoose From , joined Dec 1969, posts, RR:
Reply 9, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5680 times:

Type IV does exist, I've seen it used quite often here at YYC and a few other places I've been. It's normally applied after the temperature reaches a certain level (I think it was -25 C or lower).... so on those -40 C days it is used quite a bit  Big grin

User currently offlineAirT85 From , joined Dec 1969, posts, RR:
Reply 10, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5606 times:

I've seen the green de-icing fluid at PIT before...I also remember seeing pink de-icing fluid at ATL when I was younger (mid-90s) is there such a thing or am I remember wrong?

Tony



User currently offlineGoose From , joined Dec 1969, posts, RR:
Reply 11, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5580 times:

Type I can look pink, especially on a white fuselage....

User currently offlineJetMARC From , joined Dec 1969, posts, RR:
Reply 12, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5564 times:

Last time I de-iced in IAD, it was definetly green - 'Song Green' - and it was thick and you could see it ripple off in waves over the wing during take off... and it stank. Love it.

User currently offlineCOIAH99 From , joined Dec 1969, posts, RR:
Reply 13, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5490 times:

From what I remember about de-icing Type I is a 50-50 mix with glycol and water. Depending on how much accumulation there is it can be sprayed on the entire aircraft. Type IV on the other hand I was told should only be sprayed on the wings and tail sections as this type can after time corrode the window seals.
So if that photo is Type IV (orange) I wonder why its covering the fuselage?


User currently offlineCOIAH99 From , joined Dec 1969, posts, RR:
Reply 14, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5450 times:

To add one more point about Type IV...It's my understanding that it's used when it's still snowing. It acts as a buffer when the a/c is taxiing to the runway. Any accumulation will then "slide" off when the aircraft states its takeoff. Thus giving it a "clean" wing.

User currently offlineKROC From , joined Dec 1969, posts, RR:
Reply 15, posted (11 years 2 months 1 week 4 days 1 hour ago) and read 5418 times:

Type one is Glycol and water as perviously mentioned, and is orange in color. Type 4 glycol is as said greenish in color. The photo shows the bird covered in Type 1. I've taken a few jetBlue pics with the orange glycol all over it at Buffalo. I have had some sprayed on me as well as I got to close a couple of times trying to get pictures. Nasty stuff.

User currently offlineEA CO AS From , joined Dec 1969, posts, RR:
Reply 16, posted (11 years 2 months 1 week 4 days ago) and read 5295 times:
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So am I the only one who thinks it makes this jetBlue aircraft look like a 50-50 ice cream bar?  Big grin

User currently offlinePenguinflies From , joined Dec 1969, posts, RR:
Reply 17, posted (11 years 2 months 1 week 4 days ago) and read 5170 times:

At UPS in STL we have both Type 1 and 4 in use. Not that it snows here...

User currently offlineZrb2 From , joined Dec 1969, posts, RR:
Reply 18, posted (11 years 2 months 1 week 4 days ago) and read 5110 times:

Here's another picture of a creamsicle. Nothing better than flying into and out of BUF on days like this!

http://www.jetphotos.net/viewphoto.php?id=197261


User currently offlineJayspilot From , joined Dec 1969, posts, RR:
Reply 19, posted (11 years 2 months 1 week 4 days ago) and read 5078 times:

goose was right on with his discription..
the basic rule of thumb between the two types of fluid is that type 1 is a deicer, meaning that if there is stuff on the plane, ie. ice on the leading edges or snow on the roof from just sitting or frost from the night..... but not currently an "icing event" you just spray it off and go..
Type four, is an anti-icer.....which i might add is very very expensive, is applied when there is an icing event in progress,, meaning snow that is sticking to the aircraft or light freezing rain.. the stuff coats the plane with the gel goose discribed and comes off as the plane accellerates in takeoff and flt taking the crud with it. its pretty neat stuff, and actually requires more back pressure on takeoff due to the increased weight...

in the winter in northern cities, you will see the major airlines deicing often when the temp is cold out b/c they aren't able to tell if there is ice on the plane or not (wings are too high to tell)

hope this helps..


User currently offlinePVD757 From , joined Dec 1969, posts, RR:
Reply 20, posted (11 years 2 months 1 week 4 days ago) and read 5036 times:

Type I 50/50 (glycol and water) and type IV are both widely used in PVD. Type I is used for "frost" spraying and to remove any contamination during any deicing situation. Type IV is more gelatinous in texture (jelly) and is used for hold-over times (i.e. XX minutes during XX precipitation to taxi to the runway and take-off). Type IV will "sheer" off the aircraft at 80mph as will any contamination that might have built up on top of the type IV. All deice fluid is heated (in the trucks) prior to application. Ethylene glycol is no longer used as it is environmentally unfriendly, so you will only see propylene glycol used. Type I is either pink or orange depending on the manufacurer ("max-fly" fluid is pink) and type IV is light green. I've heard that a new, safer derivitive of ethylene glycol may become approved for use new year that will increase the hold-over times as it is easier and holds the heat longer. So, type I is always used to decontaminate, regardless of the need for type IV, which would be used to get the aircraft from the deice area to take-off.

User currently offlineWhiteguy From , joined Dec 1969, posts, RR:
Reply 21, posted (11 years 2 months 1 week 3 days 23 hours ago) and read 4952 times:

Type IV is used when there is on going precipitation and cannot be used once the temp. drops below -25 Celsius.

User currently offlineGoose From , joined Dec 1969, posts, RR:
Reply 22, posted (11 years 2 months 1 week 3 days 23 hours ago) and read 4928 times:

From what I remember about de-icing Type I is a 50-50 mix with glycol and water. Depending on how much accumulation there is it can be sprayed on the entire aircraft. Type IV on the other hand I was told should only be sprayed on the wings and tail sections as this type can after time corrode the window seals.

All deice fluid can corrode if not eventually cleaned off - it's the alchohol content.

Type I should not be sprayed on windows or the fuselage if it can be avoided. If they need to remove contaminants (snow build-up) from the fuselage, then Type I will be applied sparingly to the very top - never onto the sides. The heat from the Type I fluid is a couple hundred degrees C, and as I recall it's not a good idea to spray it onto glass, as cracks from the temperature difference can result.

The picture posted above illustrates quite well how to remove accumulation from the fuselage;

http://www.jetphotos.net/viewphoto.php?id=197261


So if that photo is Type IV (orange) I wonder why its covering the fuselage?

Type IV is not orange, it is green. It is Type I which is all over the fuselage in the photo.

[Edited 2003-12-22 19:28:11]

User currently offlineDLMHT From , joined Dec 1969, posts, RR:
Reply 23, posted (11 years 2 months 1 week 3 days 23 hours ago) and read 4855 times:

Like PVD757 has stated above, Type I fluid is a 50% water/50% propylene glycol mix. Its usually heated to approx. 160 degrees, and is used to remove contaminants from the surface of the aircraft (i.e. frost, snow, ice). The color of the fluid depends on the manufacturer, but it is usually pink or orange in color.

After the Air Florida crash in DC, the FAA passed a law that stated the no aircraft could take off with any contaminants on any of the critical surfaces. This is called the "clean aircraft concept". My memory escapes me as to where in the FARs this can be found. Therefore, its very critical that aircraft are inspected for ice or frost or anything else before takeoff, which is why you will see a ramp agent doing a final walk-around just before departure time during winter operations. The MD-88 is notorious for having frost on the wings due to cold-soaked fuel in the wing tanks, so it usually always has to be deicied when temperatures fall below freezing.

Type IV (sometimes called Type II) is 100% glycol mixture, and has the consistency of the Nickolodeon Goop that we used to play with as kids. It is usually green in color. This is an anti-ice mixture, and is applied only after Type I has been applied. It is not heated. It is usually applied only to the wings and tail and other critical surfaces of the aircraft due to its expense (roughly $5.00 per gallon). Therefore, airlines usually discourage use of it unless necessary. It acts as a buffer against any ice or snow buildup, and is usually applied only when there is active precipitation present.

According to the manufacturer, glycol is completely biodegradeable and non-toxic, but I would advise against ingesting any. Of course, anyone who has deiced behind running engines knows that it has a tendency to blow right back in your face, and you smell like maple syrup for the rest of the day!

And welcome to my RR list, PVD757

DLMHT


User currently offlineAC_B777 From , joined Dec 1969, posts, RR:
Reply 24, posted (11 years 2 months 1 week 3 days 23 hours ago) and read 4751 times:

Type 1 is for the removal of any contamenants such as snow, ice or frost. It is usually orange in color, but I have seen pink as well. As Goose said, it is 50/50 mix. Type 1 has to be heated to at least 180 degrees C for it to properly work (this is the manditory temp in Canada, it may differ in other countries) It can be sprayed on the fuselage but not windows and doors. At Air Canada, it is up to the captain if he/she wants the fuselage sprayed.

Type 4 is a thick green glycol. We often refer to it as "Whale Snot". It is very thick. In Canada, type 4 is only to be used after the plane has been de-iced with type 1. Type 4 is known as Anti-ice. When applied to an a/c that has been de-iced, it will keep snow from re-adhering to the wings for approx 45 minutes. Type 4 does not need to be heated and is not to be sprayed on the fuselage as it is very heavy and will add a lot of extra weight to an a/c.

AC_B777


25 PVD757 : ditto DLMHT, friendly neighbor to the north! Here's to the best two airports in New England - MHT & PVD!
26 Dford757 : Maybe I'm wrong...but I don't think type I is always a 50/50 mix. It depends on the temp. outside. I know there is an AC out by the FAA that tells all
27 XJRamper : Dford: Type I deice fluid is almost always at 50/50 and falls between certain temperatures(-37 and -41 degrees, I think). Too much water, and the glyc
28 Sjoic : 60/40 (sixty glycol/forty water) is the max allowed. It isn't that the fluid can go any thicker, the manufacturers have only gaurenteed it to the temp
29 MHTOH : When the mix ratio is over 60/40, the chemical composition actually makes the fluid ineffective. One would think that the more glycol that is present
30 Whiteguy : AC_B777 Actually it is usually up to the ground crew when and where the aircraft gets sprayed. The captain can request a spray and it has to be done b
31 APAOps5 : Anyone seen those taxi-thru "tanning bed" hangars for de-icing, and are they still required to anti-ice afterwards?
32 Raven111 : We have a heated hanger but, it's not a drive thru. I like the idea.
33 APAOps5 : Welcome to McDe-ice, will that be De-icing fluid or Anti-icing fluid? Would you like that supersized? For here or to go?
34 N1120a : Well, I am not a de-ice expert but I have seen clear (JNU) and sea green (ZRH, they covered those suckers)
35 AC_B777 : Whiteguy, From my training, the captain of the flight decides whether or not to have the fuselage sprayed. Most captains will request a fuselage de-ic
36 Longhaulheavy : JetBLUE? Looks more like JetGotPissedOn.
37 Travatl : While working at AA in the DRO ski station a few years back, I became quite familiar with the deicing fluids I and IV. But I've always wondered...what
38 L-188 : OK, some bad info circulating here. The color of the fluied is based on the chemical contents, AFAIK they do not use a dye in it. Most fluids today ar
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