Optimizing Testing Speed for Efficiency

speeds up. The last thing I want to mention is you've heard several times now about 130 mph. You say, "Well, gee, these cars are capable of running over 200, but you have to be very careful. Sure, we can build a wind tunnel and other people have built wind tunnels that run 180 to 200 mph, and that's great. The issue is that it takes a tremendous amount more power and more capital to build a big wind tunnel that does that. The question is, do you really need that?" Well, that depends. uh in most cases when you're trying to measure the aerodynamics of a certain object as the speeds are too low, it's not really a legitimate it's not qualitatively the same air flow. But once you get up to a certain number, uh a certain percentage of the full speed, uh all of the uh qualities of the air tend to straighten out. It's called the Reynolds number. And so, um, essentially we've determined experimentally that the shape of the car, a full-sized car, probably has all these qualifying or quality air flow issues pretty well sorted out once you get on the north side of 100 miles an hour. And so, from there, it's simply scaling the the numbers up and down. So, we take the 130 mph air and scale it up in force to what