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Old March 21st 08, 06:55 PM posted to rec.aviation.piloting
Bertie the Bunyip[_24_]
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Default Water in the fuel

"Dan Luke" wrote in
:


"Roger" wrote:


Stored indoors, if you can call an unheated steel hangar indoors (at
least it's out of the rain) particularly in the spring where the
humidity is usually very high and temperature swings can be 50 or
more degrees between day and night although 30 is typical (50 day,
30 night The next 10 days are showing mostly 40's in the day and
teens to 20s at night) I have taken over a pint out of 25 gallon
tanks that were about 1/4 full.


Hmm... I don't understand this.

One cubic meter (about 264 gallons ) of saturated air at 32 degrees F.
contains about 5 to 6 grams of water vapor. The fact that the
temperatures were falling into the 20s indicates that the air had less
moisture in it than that. There couldn't have been even a gram of
water in 17 gallons of air at those temperatures.

Where was the water coming from?


It was probably suspended in the fuel.


Bertie