Dan, I made vinyl ester fuel tanks in the outer wing panels per the Dan Diehl plans. There were leaks where the top skin joins the outer rib. I was able to fix these by sucking on the fuel outlet with a vacuum cleaner while applying VE flox to the leaking locations. http://websites.expercraft.com/sidwood/index.php?q=log_entry&log_id=7331 http://websites.expercraft.com/sidwood/index.php?q=log_entry&log_id=7531
Using the Diehl instructions the tanks turn out to have 10.2 gallon capacity for each side. That's about 5 hours endurance for my 2180 VW. And about 2 hours more than my personal endurance. If I were to do it again, I would put in a false spar to move the aft side of the tank forward about 5 inches to get 8-gallon tanks for 4-hour endurance. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA smw...@md.metrocast.net ------------------------------ If you have built wing tanks for your STOCK outboard wing with Diehl skins and have any words of wisdom or pics, I can use both. I want to get started on these as soon as possible. I hope to have this done and the Vair engine installed by the next Gathering so I can fly high and nonstop to I39. Daniel R. Heath