@pmilazzo posted:The K-Line Big Boy version is much smaller than even the Lionmaster "semi scale" Big Boy when we did a comparison of it against the Lionel version many years ago. I think if you have the Kline version it would be pretty noticeable that it's not close to scale when using it with scale cars or parked near other scale locomotives, but perfect for traditional trains and really tight curves! If all you have is traditional size equipment, this is a good choice. The Lionmaster version does feel "massive" with traditional equipment (as it should be) and visually
The K-Line Big Boy was actually built to S-scale (1:64), and is the same scale as PW American Flyer equipment, but mounted on 3RO running gear (the same thing that AF did with their then-new 1:64 locos in the 1930's, making the K-Line S-scale/O-gauge BB sort of a full-circle thing).
The former K-Line BB has been produced by Lionel as a proper S-scale AND S-gauge loco, has it not?
