In a message dated 00-05-02 13:05:57 EDT, you write: > In theory I suspect you're right. The one thing that could foul up the > reasoning is > if the unit were to vapor lock. As long as the fuel line goes up, any vapor > pocket > will go up and out of the line. As soon as you get a dip, any vapor on
the > carb > side of the dip will stay there. Could be a problem. > Gravity feed syetms are next to impossible to vapor lock. The problem occurs when a vapor pocket forms on the suction side of a fuel pump, and the pump cannot clear it out. (The reduced pressure on the suction side raises the vapor pressure of the fuel, encouraging the formation of the vapor). With gravity feed, the float valve opens and the gravity head pushes any vapor through in almost no time. You may suffer from vapor lock between the wing tanks and the pump, but that's why you've got a header. Most planes have a boost pump located at the low point, so that the inlet of the pump is gravity fed. This also is immune to vapor lock. John __________________________________________________________________________ ______ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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