Difference in scale of HO and OO

HO scale is 1:87
OO scale is 1:76

So the difference is OO is about 12% larger than HO

David

And S scale is 1/64th (which is rare)

Regards

*** Except when its SN3-1/2.... Its actually relatively common (ie probably larger than EM or P4 in numbers) when considered from a world-wide perspective.

Sn3-1/2 is very often used for 3'6" gauge modelling in SA, Australia and NZ to name a few.... There are many lovely layouts and some really nice gear in that scale/gauge combination - which can conveniently use 16.5mm track like OO and HO for the "track-challenged" modeler.

Richard

With HO (i.e. 3.5mm/1ft scale) buildings if used towards the back of 4mm layout you can create some "depth of field". A number of well known exhibition layouts use varing scales to buildings located towards the back of the layout.

Regards
Paul

QUOTE (Richard Johnson @ 4 Mar 2009, 11:42) <{POST_SNAPBACK}>*** Except when its SN3-1/2.... Its actually relatively common (ie probably larger than EM or P4 in numbers) when considered from a world-wide perspective.

Fair point Richard - I was referring to the UK where I have only seen one, extremely good, layout.

Regards