I've just got the latest (to my local magazine shop) issue of Kalmbach's TRAINS Mag.
I've always wondered why, with all the colors that are available to paint locos, why NS chose nondescript black. Now I see why, with 20 fallen flag schemes to deal with, it was the only color left that wouldn't tread on someone's toes Now I mght be tempted to include a couple. And they call UP the "Ultimate Predator".
The reason I've quoted myself here is because I want to draw attention to something that appears on page 11 of that magazine under the heading of "Why the Southern heritage unit has a 'K' ", referring to this letter being added to the unit's 8099 number as a coding system to identify it positively in the computer system. If anyones got this mag, have a look, see if you can work it out.
The guy that invented this coding went on to become assistant vice president for management information systems (I wonder if he also worked out a code that allowed such a title to be written on his office door).
Here is the method of deciding what letter a unit # should have for those that don't have the mag.
The check code system features 10 letters and works like this: Take the first #, double the 2nd and 4th #'s; if the 2nd and 4th #'s doubled are 2 digits,add those #'s together, i.e (9+9=18, make it 1+8=9). Then add the sums from 1+4 (with the doubled 2nd and 4th digits). Finally, pick the next break point # by tens (10,20,30,40) and take the difference. For 8099 that's 8+0+9=17. Double the lst 9 for 18, but because it is 2 digits, add them to get 9, and add everthing together for a sum of 26. The next break point is 30, so the difference is 4. The corresponding #'s and letters were as follows: 0=A, 1=F, 2=H, 3=J, 4=K, 5=L, 6=R, 7=T, 8=W, 9=X. So for 8099, the correct letter is 'K'.
Easy eh!
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