I always got the impression that Roundhouse would really rather build their locos to 32 mm, but they are enough of a realistic company to know that the larger market is 45mm. I for one am glad to have my SR #24 in 45mm.
I haven't updated my home page for a while but for the curious; http://home.epix.net/~ppaskos/ Phil > According to Roger Loxley it is built to 9/16" scale as a compromise > between 1:22 and 1:19.05 (16mm). It is also available for the more > nearly correct 32mm ga (Ga 0). > > > > Phil, > > > NMRA designated "F" as 1:20.3, so it is 3' gauge models in 1:20.3 scale - > > i.e. gauge 1 track with accurate scale models. > > > > > > The Accucraft NG steamers are all Fn3, including that beeaauuutifullll > > K-27. > > > > > > Pete > > > > >