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SLC Deicing: Type I and Type 4 always

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Old 12-22-2009 | 04:34 PM
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Default SLC Deicing: Type I and Type 4 always

To the guys that have been there awhile why does SLC give type IV after Type I when its a clear day and not a cloud in the sky...
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Old 12-23-2009 | 01:31 AM
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Originally Posted by djrogs03
To the guys that have been there awhile why does SLC give type IV after Type I when its a clear day and not a cloud in the sky...

I don't recall ever being deiced at SLC on a clear day
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Old 12-23-2009 | 04:42 AM
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There was a memo just out about that... They have some special approval to allow a greatly reduced concentration of type 1 but to do that they must use type 4 also. Makes me wonder if they really save any money doing it that way.
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Old 12-23-2009 | 04:56 AM
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Originally Posted by TonyWilliams
I don't recall ever being deiced at SLC on a clear day
You have never seen frost?
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Old 12-23-2009 | 05:23 AM
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Originally Posted by UnlimitedAkro
You have never seen frost?
Yeh.....which type 1 takes care of....have I ever seen frost form after type 1.....no.
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Old 12-23-2009 | 06:07 AM
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Originally Posted by Avroman
There was a memo just out about that... They have some special approval to allow a greatly reduced concentration of type 1 but to do that they must use type 4 also. Makes me wonder if they really save any money doing it that way.
i doubt it....Type 4 is pretty expensive
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Old 12-23-2009 | 07:00 AM
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Originally Posted by Avroman
There was a memo just out about that... They have some special approval to allow a greatly reduced concentration of type 1 but to do that they must use type 4 also. Makes me wonder if they really save any money doing it that way.
Originally Posted by somertime32
i doubt it....Type 4 is pretty expensive
Airline management 101.......spend a dollar to save a dime.
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Old 12-23-2009 | 07:03 AM
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Originally Posted by TonyWilliams
I don't recall ever being deiced at SLC on a clear day
Originally Posted by UnlimitedAkro
You have never seen frost?
Originally Posted by logic1
Yeh.....which type 1 takes care of....have I ever seen frost form after type 1.....no.
Logic I'm trying to see where Akro said anything about having frost after deicing with type I....just that you might have to deice on a clear day....
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Old 12-23-2009 | 07:04 AM
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DAL does that for some reason. I think SKW will still give us T-I only.

But SLC does have a potential severe active frost problem from the lake moisture. It can switch on and off with no notice.
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Old 12-23-2009 | 01:27 PM
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The memo I saw listed SLC and CVG as the 2 stations that have the diluted type 1 approval thing that we (Mesaba) could have to deal with.
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