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Re: sight gauge vent

Subject: Re: sight gauge vent
From: Graham Singleton <grasingleton@avnet.co.uk>
Date: Thu, 31 May 2001 00:12:11
>I would like to open up for discussion another issue relating to the fuel
>vents. I believe that it will be better to vent the sight gauge to the top of
>the tank rather than to an external vent.
>The height of the liquid in the sight glass is dependent on the pressure at
>the base, and the pressure at the top of the column of fuel. It will only
>show the correct height if the pressure at the top of the fuel in the sight
>gauge is the same as the pressure above the fuel in the tank (oh, and of
>course if the plane is level..)

Several people have already done this and it seems to work very well. I do 
not know if they had their mods approved by PFA but I would not expect any 
problems. If (or when) I build/acquire another Europa this is what I would do.

Graham



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