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Pinewood Derby (updated with results)

posted Jan 24, 2012, 4:10 AM by Bret Musser   [ updated Jan 24, 2012, 4:17 PM ]
Twenty-six Scouts entered the annual Pinewood Derby races, held on Sunday, January 22, 2012.  The Scouts presented a variety of fun and colorful designs, including a Batmobile, a tank, and even a carving of the words "Pack 83".  Siblings and parents also joined the action, with their own round of racing.    

Cars are lined up after being inspected for the races.  
Click on the image for more pictures from the event.  If you'd like to contribute 
additional photos to the album, please contact Bret.


The following list provides the rank order of the winning times.  For privacy reasons, we are not posting car numbers and names.  

RANK TIME(seconds)

 1 13.703276
 2 13.738624
 3 13.822180
 4 13.852999
 5 13.871684
 6 13.899524
 7 13.912623
 8 13.935783
 9 13.994314
10 14.065372
11 14.140944
12 14.155868
13 14.168609
14 14.169720
15 14.257372
16 14.512428
17 14.591239
18 14.612504
19 14.711647
20 14.837103
21 14.943680
22 15.142480
23 15.570936
24 15.618292
25 15.816832
26 15.997795



The following graph shows how fast each car ran in each of its four heats, sorted by rank.  The fastest cars performed consistently in all four heats.


With the new computerized timing system for the Pinewood Derby, courtesy of Mike Kossor and last year's graduating Webelos Scouts, we can examine how well the track performs.  For example, we have wondered if one lane is faster than any other.  We examined the timed results from this year's race, and found that none of the lanes were significantly faster than any other lane.  The difference in the average time between the fastest and slowest lanes was less than 0.01 seconds, far less than the 0.50 second difference between fastest and slowest cars.  

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