JumboJet wrote:

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I think Sir Mel should also make one

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Very nice Site.

Alas I'm not as qualified to make one myself.When I do qualify.I will

regds

MEL

Pls post your Questions out here.If Im able to Answer them I will def try my best or will get the Answer from a more Wiser person.

regds

MEL

JumboJet wrote:

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Why do they deice the plane on arrival in most western countries. What is the objective behind the same. What kind of efficiency in terms of % can be achieved/is achieved by the same.

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this is something that even I can answer.  Well!! If there is ice on the wings, then the flaps won't work during take off, and you'll have disaster for sure.  Do you remember the days of non-frostfree fridge, where you used to have a tray below the freezer.  It used to have a flap too, and when water used to freeze in it, its flap would be stuck.  Pretty much the same thing over here.

rgds

VT-ASJ

HAWK21M wrote:

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JumboJet wrote:

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My first question:

Why do they deice the plane on arrival in most western countries. What is the objective behind the same. What kind of efficiency in terms of % can be achieved/is achieved by the same.

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As Aseem pointed out.....De-Icing is the Removal of Ice from the Aircraft surface after it forms.The Rotor blades can freeze & the Aerodynamic contour can be affected on the Leading Edges.Control surfaces can get jammed.Lift is affected.

During Flight most Aircraft use Anti Ice [Prevention of Ice Formation] for Wing Leading Edges & Engine Cowl.

I would not know the percentage of Efficiency achieved theoritically though.

Believe me Im glad We dont have Icing problems to that extend out here.Its not easy to work in Mx.

regds

MEL

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Does Icing happen to a/c which are on ground and then wanting to take off, or does it happen to a/c which have landed too.

Often i have noticed that while deicing, water is sprayed on the body of the a/c as well.....why?

HAWK21M wrote:

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JumboJet wrote:

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Does Icing happen to a/c which are on ground and then wanting to take off, or does it happen to a/c which have landed too.

Often i have noticed that while deicing, water is sprayed on the body of the a/c as well.....why?

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If the OAT is condusive to Icing,below 0degC or approx 35degF.Not a problem in most places in India though.

In Air its more likely due OAT & Moisture.

The Spray solution is not Water,but DeIcing Fluid.Rated in types depending on the Warming time.Its hot & keeps the Surfaces warm.

The Crew make a decision on what type fluid needed depending on the Time left prior to chocks off.

regds

MEL

 

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Thanks.

My next question:

Do we clean/scrub aircrafts from outside in India.

HAWK21M wrote:

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Once a Week on Average during its Layover checks.Normally outsourced to a cleaning company.

regds

MEL

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How do they do it. Just with water or do they use some solvents too.

Any pictures which we can get of the same......maybe a link

DABTH wrote:

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some also used high pressure fluid jet cleaning system.... kinda like high pressure fire fighting jets from pipes... these are usually mounted on the platforms..

some pics you can see are














i had seen a good pic of JAL's jumbo cleaning system... forgot where i saw it

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