I built my tank with the vent taken at the top of the tank going through the fire wall and angled down to the bottom of that bulkhead. I fixed a small screen to the foreword facing vent tube to keep stuff out. I never liked a vented gas cap although the work well. My tank and foreword deck are all one piece made of carbon fiber, glass, and Kevlar.
Joe Scappoose Ore. ---------------------------- I am to the point of building a new fuel tank for my new fuselage following the Oct 09 off airport collision with an earthern berm due to loss of engine power. NTSB felt the cause was improper fuel tank venting that caused a vaccuum that beat the gravity feed system. My question is for someone flying with a gravity ONLY fuel system: How did you vent your fuel tank? Bob Sauer Sun City West, AZ