Stop in for a cup of coffee

I was an apprentice operating engineer down south in Ontario Ca. running a portable rock plant making material for a flood control project.
I kept hearing this weird noise over the normal sounds the plant made. :wtf: is that noise? I wandered around the plant all day trying to find it. Quitting time comes, I git it all shut down and there's that damn noise again :wtf:. Right then the little light bulb lit up in my head :eek: "It's the end of October, we're in Ontario. That's a Fuel Car at the World Finals at the speedway!" :lol: Ontario Motor Speedway was about 4 miles down the freeway from where we were set up.