Do you have a header tank? If so, the only time you get a true reading is in absolute level flight and then only if the top of your sight gauge is level to or above the top level of the fuel tank. If you are sitting on the ground, your header tank will be above your sight gauge due to the nose up angle of the plane. This also applies in flight if you are flying in an nose up attitude, your sight gauge will be lower than your tank. This scenario will give you a false sense of a fuller tank and when the fuel level drops to the level of the sight gauge then you will notice the sudden drop as you speak of.
Mark Jones (N886MJ) Wales, WI Visit my KR-2S CorvAIRCRAFT Site at: http://mywebpage.netscape.com/n886mj ----- Original Message ----- From: Serge VIDAL <serge.vi...@sagem.com> List-Post: krnet@list.krnet.org Date: Tuesday, May 24, 2005 3:42 am Subject: KR> Fuel gauge mystery > On my KR2, the fuel gauge is a plain and simple sight gauge (clear > plastic > tubing linked to the top and bottom of the tank). > > One mystery I was never able to solve is that the gauge has a lag. > When > the tank is amost full, it takes forever before the level drops, > then it > suddenly drops when the tank is about half full. > > I tried to increase the line diameter to an ID of 6.35 mm (1/4"), > to no > avail. > > Do you think that a bend-down on the top tube could explain that? > > The only other explanation I could find would be that the top > connexion to > the tank would be clogged. > > Serge Vidal > KR2 "Kilimanjaro Cloud" > Paris, France > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
