[Spridgets] Looking for an Education - Indirect LBC content

Tim Collins thcollin at mtu.edu
Tue Jan 26 08:34:15 MST 2010


Bob,
Thanks for the explanation. Makes sense that you would need two 
watches, one specifically to measure "delay" times. I suppose the 
navigator had to be able to do some math quite quickly to account for 
delay times, velocity lost during deceleration, acceleration, etc. So 
now that's done with gadgets, GPS, kids toys (Nintendo gameboy), cell 
phones, computers, or what have you? For a guy like me who doesn't 
own a GPS, cell phone, gameboy, etc - a Luddite - this is interesting. Thanks!


At 11:50 PM 1/25/2010, Bob Kitterer wrote:
>Tim,
>
>Back in the days before dirt, calculators, minicomputers and such a 
>serious U.S. ralley team would have two electric odometers, two or 
>three stop watches and a trusty slide rule.
>
>The reason for the multiple watches is that one has the time you 
>took on the last section (along with one of the odometers), one is 
>ticking off the time on the current section(along with one of the 
>odometers)  and if you had fixed delays then the third watch comes 
>in to play.  For instance "Allow 5 minutes to cross the train 
>tracks."  When you reached the train tracks you would stop the 
>current time watch while at the same time start the delay 
>watch.  Once across the tracks you would wait for the delay time to 
>lapse and restart the current time watch as you proceeded on the 
>route.  The "correct avg speed" did not account for the delay time 
>but the overall time did.

Tim Collins
http://www.flickr.com/photos/12702006@N07/ 


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