I'm in trouble reading Titanic body plan. I don't understand, in the plan it says "set of 25 half-plane body sections for Titanic". But if i count them, i get over 25. I noticed that on some lines there are 1 1/2, 2 1/2. What does that mean? And also how do i calculate what is the distance between stations? On the sheer plan that i found on the internet, there is 27 stations.