Re: What's the ugliest noise you've ever heard from a piece of equipment?
Iíve a good one. At our local drag race track, they bought an old jet powered track dryer a about 4 years ago. It would run but sounded horrible. Anyway, one of the owners spent the last two years rebuilding it. For the first race of the season this year, they had it mounted on a static mount and fired it up a couple of times for the crowd. Two weeks ago, they had it pretty well mounted on one of the track trucks and were making the final adjustments to it between rounds. By the time the racing had finished they figured that they had everything right and wanted to test it before they closed the track for the weekend. So, we hung around to watch. The first time of two down the track they had it running at fairly low power and everything was working great. They made one last adjustment and started down the track with the dryer running at 100% throttle. When it went by us we saw one little problemÖthe ďmechanicĒ had left his portable tool box on the roof of the truck. Even though we were all yelling and waving our arms the driver couldnít hear us and took all the arm waving as encouragement to head down the track faster than before.
Yup, it happened, the toolbox slid off the roof when he accelerated and everything got sucked into the turbine running at 20,000+ RPMs (no guard over the inlet yet since they were still testing it). Holy smokes what a noise! Not only that, but parts of broken blades, tools and the remains of the tool box along with lots of flames when shooting out the back of the turbine and right down the staging lanes! Then that silence that always occurs right after something expensive gets destroyed.
The look on the driverís face was hilarious. He didnít know whether to laugh, pee his pants or cry. He had just put on a heck of a show and smoked a $15k jet turbine in the process because somebody got complacent and left their tool box on the roof of the truck.
Iím sure glad it wasnít me that had to call the owners and tell them about it.