Atlas O track is labeled in Diameter such as 0-54 or 54 inches across a circle. It is also labeled as 22.5 degrees which I assume means one piece of 0-54 track is one of sixteen needed to complete said circle (360 degree's of a circle divided by 22.5 is 16) Atlas O 0-63 track is also 22.5 degree's but a larger circle when completed. The "Point" of this is so as to ask: If one uses 0-54 to layout a folded dog bone style track plan, use 0-63 as the first piece in every curve to form an easement, would the track plan "come together" or will there be to much "change"?
Many Thanks,
Rick.