Van's RV-8 Build. Ep 071. Fuel Tanks 18 - That Hippie Pilot Watch in HD on YouTube! Share on Facebook! Today I created a reinforcement/mounting ring for the fuel sender's new location by cutting out that portion from the root rib access plate. After that was done I finished the prior day's tool fabrication by making four aligning tools to aid in hanging elevators, rudder, and ailerons. About 2.5 hours of work today.