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<p>[quote user="dehusman"]</p> <div class="quote-header"> </div> <blockquote class="quote"> <div class="quote-user">Lone Wolf and Santa Fe</div> <div class="quote-content"> <p>I think what the OP refers to as B units are cabless units like a F7B. Locomotive makers don’t make cabless units anymore. They haven’t made any in decades as far as I know. Some railroads made their own. Southern Pacific made some back in the 1970s. They are cabless B units made to be ran in a latch with similar power.</p> <p><img class="irc_mi" style="margin-top:2px;display:inline;" src="http://www.railpictures.net/images/d1/5/3/6/9536.1145685600.jpg" alt="Image result for southern pacific hump engine" width="657" height="441" /></p> <div style="clear:both;"> </div> <p> </p> </div> </blockquote> <div class="quote-footer"> </div> <p> </p> <p>Nope, that's a slug, a completely different animal.</p> <p>A B unit is a locomotive that can't be a leader.  It lacks the seats, full controls and equipment to make it a leader on a train.  It has all the other equipment of a locomotive (engine, generator, air compressor, etc).</p> <p>A slug is a frame with traction motors  and electirical equipment to operate the traction motors, but does not have any control equipment, engine, generators, etc. that derives its power from the "mother" unit.  It cannot operate by itself, and cannot be a leader.</p> <p>They are two very different things operationally and mechanically.</p> <div style="clear:both;"> </div> <p>[/quote]</p> <p>This isnt quite true anymore,  NS is kinda doing their own thing with slugs now.</p> <p>I dont know what equipement they left in the cab.</p> <p><a href="http://www.nsdash9.com/rosters/700.html">http://www.nsdash9.com/rosters/700.html</a></p>
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