Norman height for o-gauge model train layouts
Norman height for o-gauge model train layouts
Norman height for o-gauge model train layouts ho scale.
Don’t run the risk of having your trains crash into tunnel roofs. Build to British standards for minimum vertical clearance and train heights and keep your models safe.When building tunnels and over bridges for model trains to pass through making sure the train can pass through clearly without crashing in the top of the structure is obviously vital.
How high should a bridge or tunnel be for N, OO, HO scale?
Luckily, a set of standards that define this were devised in 1950 and if you keep to these you (or more importantly your trains) will be safe.
The standards are from the British Railway Modeling Standards Bureau and give exact dimensions for all the main British scales.
From track to train top these are:
N (1/148)
27.84mm
OO(4mm)
54.00mm
EM(4mm)
54.00mm
O
94.00mm
For reference, the protocol height (that of real trains) is 13ft.
So when planning and building a tunnel or bridge, measure from the top of the track rails to, say 54mm in the case of OO gauge,