| R-32,38,40,42,44,46,62,68,142,143,160?? (860744) | |||
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R-32,38,40,42,44,46,62,68,142,143,160?? |
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Posted by rbseabeach on Wed Nov 18 19:42:12 2009 Why did the numbering system go from R-62 to R-142 on the IRT and R-68 to R-143 on the BMT, Is there a reason they chose not to use numbers in the 70's 80's 90's 100's etc. I even remember when the R-110 came out in 1992, why the jump in the numbering system? |