How-to 2-8-2 K-27 RGS #461 (part 2) The loco is built to negociate a 2.5ft radius curve, but is best suited to 4ft radius or larger [ K-27 #461 (part 1) ] - - [ K-27 #461 (part 2) ] - - [ K-27 #461 (part 3) ]