Jim, I didn't know the answer to this one myself, so I checked on the B&O Yahoo group for anything in the archives. I found much pertinent info in message 24691.
The B&O grouped the engines as one set of numbers [600 - 600X - 600XA - 600A] to get around union rules about having a crew for each unit. This numbering supposedly meant that the setup was a single engine requiring only one crew. Each unit had it's own number as above, but they were separate (autonomous) units, not requiring to be connected. [Some F3's had a common electrical system between the A and B unit requiring permanent coupling.] If a trailing A unit [600A] was removed from a consist to be run separate from the lead A unit [600], it was reassigned the next higher number [601]. The B&O assigned numbers in either evens or odds depending on whether the engines were to be used for freight or passenger service. The renumbering of an -A engine to the next higher number did not force it into the alternate (freight to passenger) service. This is all new to me, too, so if you are requiring further assistance I would suggest checking out the B&O Yahoo group. There are many experts on all subjects B&O over there. Darrell Smith --- In [email protected], "Jim Kindraka" <[EMAIL PROTECTED]> wrote: > > Looking for a little help from someone who knows B&O first generation diesel practices. They tended to purchase diesels in A-B-A sets and then give them numbers like: 600-600x-600A. They also put a nifty plate on the nose of cab units with the number. The question is, did the trailing 'A' unit in the set have that number plate and, if so, what would have been on it?? I have never seen an 'A' on a B&O nose mounted number plate, but I can't believe the RR would allow the same number to be on the front of two units that are not drawbar coupled. It makes a difference on how the S scale Sharks are detailed... > > If any of you know the answer, please contact me off line. > > Jim Kindraka > River Raisin Models > http://www.riverraisinmodels.com > > [Non-text portions of this message have been removed] > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
