thanks guys. its never straight forward is it?
i don't suppose anyone has a picture of a 1:20.3 next to a 1:22.5 of the same type do they? also does that mean the spectrum loco doesn't work on the standard set curve radius?
cheers
gordy

thanks for that i got confused by this auction he says that the set locos are bigger and i must admit it looks smaller in his photos
http://www.ebay.co.uk/itm/Bachmann-G-scale-Baldwin-Industrial-Mogul-81699-2-6-0-MINT-Lights-Sound-Smoke-/220922715245?pt=UK_Trains_Railway_Models&hash=item3370051c6d

hi guys I'm new to large scale and have got a little confused.
i have got a plainsman starter set and have been looking at the spectrum range at1:20.3 are Thea's smaller or larger than my loco? also Wat scale is my loco?
cheers
gordy