CraigAll 3 of my tanks are ram air vnted. The header tank has a vent out the side of the fusealage and the wing tanks are out the bottoms of the wings with flared ends a piece of screen and then faired inn under the wing. The header vent is just out the side and faced foward and flared. no protection no fairing. I have no data to compare as it was built like this from the get go but I do know that my fuel pressure from the header tank (gravity feed) has never been below 8/10 of a pound even though that matamaticaly that should be impossiable given the height of the tank at low fuel level above the pressure sensor. This was just something that I had done when I was building my tanks and just thought it made sence. I haven't looked at the article that you referenced yet but I will just to see what someone else says.Joe Horton
---------- Forwarded Message ---------- From: Craig Williams <kr2seafury at yahoo.com> To: KRNet <krnet at list.krnet.org> Subject: KR> Ram air fuel venting List-Post: krnet@list.krnet.org Date: Mon, 7 Apr 2014 11:12:47 -0700 (PDT) Has anyone used RAM air to vent thier tanks? Funny how things pop up.� I asked the question here a few days ago about having two fuel pickups and then came upon this article.� It addresses an issue with RH tanks in the PA22's but I think it has relevance to our KR's.� I actually had an elaborate venting scheme for my 4 fuel tanks but after reading this I am inclined to go the RAM air route, at leat on my mains.� Should make the fuel pumps job easier too. Here is the article that explains: kr2seafury.com/resources/Pages+from+SWPN-April-May-June-2014.pdf Craig www.kr2seafury.com _______________________________________________ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options ____________________________________________________________ Do THIS before eating carbs (every time) 1 EASY tip to increase fat-burning, lower blood sugar & decrease fat storage http://thirdpartyoffers.juno.com/TGL3141/5342ef9ebf65a6f9e70e1st03duc