derbynet
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jeffpiazza
Feature Request: Speed times displayed as actual not scaled
Our track is 31 ft long. Car times ranged in the 3-4 second range for valid runs. The speed is listed as 152.3 for a 3.4694 run = 8.9353 ft/s = 6.1043 mph.
I would expect to see mph. Configurable for mph, kph, or fps would make sense as well
Edit: based on the below, it is clear that the displayed times are scaled. However, the UI doesn't necessarily make that clear. As such, feature request is to have scaling enable/disable option in settings. This would also help clarify that the speeds are scaled
The cars are something like 1:25 scale so 1 normal MPH = 25 pinewood derby MPH. Multiply the 6.1 x 25 = 152,5 PDMPH. It's somewhat for the wow factor for the kids and does make sense given the scale.
Ok, so that makes more sense. This is definitely one of those things that intuitively doesn't make sense until it is explained. Having the option to choose either scale or actual speed would be nice, or labeling it as scale would be good.
From website/ajax/query.poll.now-racing.inc:
// $track_length / $finishtime gives feet per second. // * 3600 gives feet per hour // / 5280 gives miles per hour // * 25 gives scale miles per mile (not user-adjustable; makes a 7" derby car scale to 14.5 feet) $fps_to_scale_mph = 3600 * 25 / 5280;
We also had some folks ask about the speeds, and when I was talking to them about it I mentioned if you factor in the scale of the car, the 150-170 MPH number is pretty close. And a fellow in our group who happens to build race cars for a living...agreed.
