Left Larg fill tube connectedto pickup line small tothevent ilneto prevent spillage Right Two sizes fuel tube usedto prevent switching lines connecting systemalso causes pump slow down small tube begins Dassing fuel IF ICOULDTELLYOUhowtoget62% flying out dollar spend model fuel would terested Im sure ff1 told can give 62% better gas mileage present car cost nothing would sit up take notice Gas car around $100 gallon model fuels start $1000 gallon facts already known get 62% flying nothing Simple stop wasting say burn drop tank drain gallon container until sides collapse Have ever thought about much spill tank full overflow line dumping precious liquid pound Lets assume average modeler has 8-az fuel tank weekend warrior careful stops fuel pump scon tank full wrn lose Yi 3/4 oz fuel flows out vent tube Some modelers may lose know gallon contains 128 oz Ifwe burn 8 oz per flight should get 16 flights per gallon price gaso line may dropping local pump far doesnt seem methanol/nitro glut simple why-didnt-I-thinkof-it solution can keep hardearned bucks ending up ground ERon Bullard filling tank 16 times -oz loss equals 8 oz full tank per gallon suggest add return line vent tube fuel can catch overflow just gallon get enough fuel another flightand eliminate spills pit area tank full overflow will pour back can can hear see through clear fuel line Another advantage can com pletely fill tank continuing pump tilting plane until air bubbles stop coming vent line use small-diameter return line Six Shcoter air will easily pass through small tube tank being filled scon fuel starts flow down return line Six Shcoter takes pressure turn additional indi cation full tank Three turns reverse crank excess pressure relieved point fuel lines disconnected drop being spilled wouldnt pour gallon gasoline pound time fill up car would Left fuel can lid has four brass tubes soldered through goesto bottom forfuel pickup otherthree extend can Right Shown stored poaftion brasstubing silicon fuel connections maintain airtight seal keep fuel fresh 74 Model Aviation