<<475 hours and counting. Quarter inch vent size has not been a problem.

Jim Scales

>I've got 1/4 inch fuel vents installed in the wings in my ES.  Recently
>another builder expressed some concern that the 1/4 inch vents are a bit
>small and might be prone to plugging up with bugs and ice.  I'm interested
>in others' thoughts about this.  Thanks.>>

Which brings up a question - is there a redundant vent path built into the
design?  Are the caps vented via a "relief valve?"  I have thought about
adding a hole in the vent line at the high spot inside the wingtip (my
wingtips will be screwed on so they will leak).  My Cessna has a feature
like this plus vented caps.

Gary Casey
ES #157, a long way from needing tank vents