RE: Storage
Sorry, I was referring to nitro planes as well. I meant "electronics" (such as the receiver, servos etc) not electrics (typo). But yeah as gabarber said, it's a good idea to always empty the fuel out of the tank after each day of flying and put after run oil in the engine before putting into storage for the winter. Because the fuel turns solid when it sits inside the tank which causes cloggage which isn't good for the engine.