Van's RV-12 Build: Fuel System - EAA166 Hartford, Connecticut Watch in HD on YouTube! Share on Facebook! The fuel delivery system is critical in any gas-powered aircraft and installing the various components and plumbing-in the fuel lines is important to get right the first time. EAA Chapter 166 in Hartford, CT recently completed this stage in its RV-12 project and in this video, project lead Rick Montero shows us how it's done.