suzukovich posted:EMD posted:Any word on if these units can negotiate a curve less than O72?
Many thanks
060 is smallest you can go using the lobster claw couplers. Like Doug said earlier 072 is due to the fixed pilots and kadees.
I was in touch with Scott Mann during the production process to determine if the 3R SD9 would negotiate 054 curves. He let me know (while he was in China testing the models, no less) that the 3R version handled the Atlas 054 test track curves. I use solely Scaletrax on my layout and, after about 10 days of experience, can report that the SD9 is able to run through 054 curves (and the curved segment of 054 switches) without difficulty. Just to see how far it could go, I ran the SD9 through a small even-tighter section of approximately 042 curved flextrack--it negotiated that as well, though that's clearly the limit. This six-axle engine doesn't look great going though those tight curved, but it works. I am impressed.
