Sunday, January 27, 2008

2008 Cub Scout Pinewood Derby

Jack and I left the house a little after 10:00 a.m. to help set-up for his cub scout pack's annual pinewood derby. It took us a little over 2 1/2 hours to put the track together, set-up the room and get the computer connected and working.

In addition to this year's car, we brought the cars from the last two years to help test the track and the electronics. As we were testing, it appeared that last year's car was faster than this year's car. Jack was not pleased.

Jack ended up winning his den. The margin of victory was very small: a total of 37 thousandths of a second in four races! The quality of the cars has increased substantially over the last couple of years.

Last year, Jack had the fastest car in the pack. This year, his car finished third overall in the pack.

The difference between last year's and this year's cars is interesting. This year's car had a much lower profile than last year's. As a result of the lower profile, we could not get as much weight over the rear axle and the center of gravity was probably a 1/4 of an inch farther forward. It appears that getting the center of gravity farther back is more important than an aerodynamic shape.

By the time, we tore everything down and cleaned up the hall it was almost 5:00 p.m. It was a long day.

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