The Pacific was based on a Boston & Maine locomotive.It went through several drive revisions before ceasing production in 1966.
Overall I really like Athearn's quality for the money and would highly consider them in my purchasing decisions.Otherwise I love the model (more than the MTH steamers I wrote glowing reviews about below). My friend has a pacific like mine and it has always run perfectly. On a flat layout it will pull 43 cars at a resonable speed.Paul Menkens writes: I have of these, 2 Mikados and 1 Pacific. soon after I got it, when I contacted Athearn they told me that they were trying to get some replacement gears and to keep getting back to them and they would eventually be able to fix it for me (at no cost) finally about a year and a half later they said to send it in and they did fix it and it has run fine since however they broke some of the detail parts and the headlight has not worked since. When these things run they run great, when I inquired about the replacement gears at N. I would like to get a second 3900 but none are to be had in Houston.Expect to pay between and 0 for one in good shape that will operate. steven parry writes: Concerning the Athearn Genisis 4-6-6-4 challenger, it is somewhat a failure.I have an open layout and I'm using some 1970's DC controllers.The tech analyst at Digitrax was useles as he knew very little and his attitude bad.I am lucky that there are several very nice guys in my area that have great layouts and are very eager to help.That engine uses so much power that it shuts itself off and when you want an operational coupler for dubble-header operation, they only give you the parts and say "figure it out yourself because we don't want to put it on the manual" and some of the parts fall off.But, they do add a lot of detail and sound to this engine. Richard writes: I have a previoue run Athearn FEF that has the older MRC sound and control system.However some of them suffer from degredation of the cast material, causing them to swell and warp.Pickup varies from tender only to tender and loco, some have plastic drivers, some plastic with metal rims.