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Old 06-30-2005 | 09:44 AM
  #22  
hamburgler
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Default RE: How fast is it really?


ORIGINAL: Stablock


ORIGINAL: hamburgler

good idea but you have to many varibales. for example what if the person consistantly is slow in starting the watch. i mean like 3/10th of a second. that is such a small amount of time and it will mess up your whole top speed thing. what about buying like a bike spedometer and calibrating is correctly. also just ask a cop. everyone knows a cop
Perhaps that is why I suggested to do it a few times before recording to allow the time keeper to get some practice on the timing. I also suggested to do it several times in both direction and record each time. The times should be close. Lastly, I suggested you use your average time when doing the math. Sure there are some variables but there are way to minimize them. Go talk to a cop about the +/- of a radar gun. They can be 7 to 12 MPH + or -.

Besides, if the person is consistently slow in starting the watch, hopefully they are consistently slow in stopping the watch.

Oh, and your idea about the bike speedometer is great! Let me know when you hook it up to your savage. I would like to be there to watch you run next to your savage to try to read the speedometer!

yes but if they are consistantly slow in starting in (ie have a slow reaction time) but then on time stopping it then your calcs will be off. im not bashing your idea but just use a radar gun. man if they radar guns are 7 to 12 mph off then people in court who argue tickets would consistantly win. they are not very acurate. the cops have the best toys. also, you can hook up a bike speedo. it may not be the best idea but it will be very close. you can buy some that log the top speeds so you run it for 100ft and then it will hit top speed and then drive it back and look at the speedo to see how fast it got going.