HUDSON FORDSON GO-GO NARROW GAUGE DIESEL TRACTOR [11] (BODY ONLY) (O9 Gauge 7mm scale). It also uses two standard Peco GR-102 009 couplings (not supplied) which slot neatly into the bodywork. This engine is modelled on the Robert Hudson 20hp locos running on a number of narrow gauge lines, including the Abbey Light Railway before its closure.