My question is will Bachmann Steam Locomotives operate on code 55 rail with out modifications?  I am interested in the smaller locos like the switcher up to the ten wheeler. (0-6-0, 2-8-0, 2-6-2, & 4-6-0). I am building a copy of John Allen's Gorre and Daphetid with minimum switch and radius size. Switches are #5. All track will be Atlas code 55 flex and #5 switches. Just like John's no diesels will be allowed. Thanks Gregg