Greetiings! These days, there are four manufacturers in the market offering F40PHs in HO scale, and buying one might lead to buyer's remorse if one did not make an informed purchasing decision. The four brands are Kato, Spectrum(Bachmann), Walthers Trainline and Life Like. The Life Like F40PH is a toy and not even worth considering. It uses one of those notoriously unreliable pancake motor drives with just one powered truck. Avoid at all costs. The Walthers Trainline uses a much better mechanism with all-wheel-drive and looks reasonably good, however, it is not DCC ready. I cannot include the Walthers in this comparison because I don't have one. What I do have are the Kato and Spectrum offerings, which I will be comparing for you side-by-side today so you can make an informed buying decision. Let's start with the mechanisms... Both the Kato and the Spectrum use a center-mounted motor mechanism with dual brass flywheels, which drives all of the wheels through shafts and worm gears. Both pull well, and neither have any problems hauling the four retooled Bachmann Amfleet cars I have all the way up to a scale 60-70mph or so on level track. (I reviewed the Bachmann Amfleets previously, here: http://www.the-gauge.com/showthread.php?t=22704). Unless you have a huge layout, you probably won't haul more than 4 Amfleets since those cars are rather long (scale 85 feet each). Low speed performance on both are very nice as well. On DC they start crawling steadily on my not-often-cleaned nickel silver track at a scale 5 MPH or so, and I have no doubt you can get them to crawl even slower if you got nice clean track and a good DC power pack. Both locos are DCC-ready with the standard 8-pin NMRA plug. Plug in any standard 8-pin decoder and you are ready to go. One can get even better low-speed control with a good decoder I suspect. Next post below I will talk about how these models look.