about sand
Thread Starter
Joined: Aug 2008
Posts: 7
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From: Pavia
about sand
When: winter season
What: runway sanded
Question: after runway de-ice , the airport autority spread with sand the runway......!( es. canada)
Please, someone can explain to me, about sand ...on the T/O area!!!
TANKS !!!!
Gianni
What: runway sanded
Question: after runway de-ice , the airport autority spread with sand the runway......!( es. canada)
Please, someone can explain to me, about sand ...on the T/O area!!!
TANKS !!!!
Gianni
Joined: Jun 2006
Posts: 716
Likes: 0
From: Europe
Sand is frequently used in Norway (especially in the northern parts in wintertime).
Sand is mixed with hot water (or rather moistened) and spread thinly out. The wet sand then freezes onto the surface (usually of ice or rime) and causes the friction (ie braking action) to improve.
In certain winter conditions it's pretty much the only useful thing.
Sand is mixed with hot water (or rather moistened) and spread thinly out. The wet sand then freezes onto the surface (usually of ice or rime) and causes the friction (ie braking action) to improve.
In certain winter conditions it's pretty much the only useful thing.
Joined: Nov 2007
Aviation Qualifications: ATPL
Posts: 1,954
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From: Texas
I remember going to Oklahoma City many years ago after an ice storm. They don't have any runway deice equipment. They had dumped sand on the runway till it looked like a beach.
Aviator Extraordinaire
Joined: May 2000
Posts: 2,396
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From: Oklahoma City, Oklahoma USA
I remember going to Oklahoma City many years ago after an ice storm. They don't have any runway deice equipment. They had dumped sand on the runway till it looked like a beach.
Hell, even WPA (Wiley Post Airport) has snow plows and deicing equiptment now. That really took some doing.
* There are a few producing oil and natural gas wells on the physical property of Will Rogers Airport that have produced a handy profit for the airport for quite a few years.
Joined: Jun 2006
Posts: 716
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From: Europe
Going off the runway due poor braking action is also bad for your turbine blades (among other things). That aside; if they put on so much sand that it gets sucked into the engines, it's too much. The idea is to spread a thin layer, diluted with hot water, to make the sand grains freeze onto the surface of rime or ice. So you are taking off from a sandpaper, rather than a sandbox.
I suppose the blade erosion on reversing propellers may be more of a factor, really.
I suppose the blade erosion on reversing propellers may be more of a factor, really.
