Re: The Oxney Island Line - from the begining again.
Once I slowed down and thought about it properly - all became clear. You have to program in the wheel diameter and it will only accept 'normal' bicycle wheel sizes. My LGB wheel was about 1 and 3/16ths inch diameter. Multiply by 22.5 and you get 26.75 inches approximately. Convert this to metric and enter.
My circuit is 0.42 scales miles and the Mallet does nealy 50 MPH flat out.