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Re: Fresh water effects...

Posted by Per Bjorkqvist on Thu Jan 09, 2003 03:55:55 PM

In reply top Fresh water effects... posted by Dave Robinson on Thu Jan 09, 2003 03:23:58 PM

: There have been a number of questions posed about the effe
: cts of Salt water on aircraft, as far as I can interpret t
: he result seems to be take each one as it comes as no two
: will be the same, but what are the effects of fresh water
: on aircraft? What precautions have to be taken when one i
: s recovered (if any)?

Well,here i the middle part of Sweden is the Great Lake (Storsj?n in swedish)known for another great lake monster!
I have recovered some Swedish P-51 items and other types out of this lake and they is often damaged with the wellknown patina of light-blue and powder.....as in salt water.
Especially in shallow water when the parts lay fully exposed above a solid sea bottom.
I believe that it is a combination of sunlight,salt,and other minerals that breaks the metal down...
Stopping the process i believe the only thing you can do is to rinse with fresh water as soon as possible after recovery and remove areas of detoriated metal,just like iron rust on your car....
It also depends of how much Magnesium there is in the alloy.
The more of Mg the worse corrosion.

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