Quarter Gauger 48 posted:Yes, they are indeed 1:43.5. O Gauge/O Scale in England ,and Europe, is 1:43 through 1:50, but mostly 1:43 and 1:43.5... US ,O, is 1:48....
Yeah, it comes down to track gauge. In 1:48, your basic O gauge track actually clocks out at 5 foot gauge, so, in Europe, they decided to scale things up a tad to 1:43 to make the track a proper 4' 8 1/2". This is also why most Dinky, Corgi et cetera diecast cars are 1:43 scale...
Mitch