Random thought of the night....partially because I can't sleep....
As you know, we have a number of Redbird cars that are being set aside for, or are already in preservation. One thing I noticed is that we have at least one pair of each class of cars that later in their lives fell under the category of "Redbird". For example, we have one pair of R26s....a pair of R29s...a pair of R36 mainline cars, etc. (Same can be said for the B-Division equipment - a pair or R40s....a pair of R38s, etc. We have two pairs of R32s for the reason that the ones preserved were the first cars delivered and traveled under their own power to Grand Central Station via today's Metro North line).
Now, when it comes to the R33 mainline cars, we have not one pair, but four, or 8 cars that sport various paint schemes. It made me wonder though: what was it about the R33ML class that made them want to preserve a train of 8 cars? In other words, what thoughts or ideas went towards the decision that, instead of preserving one pair, we needed four pairs? Side note: I do remember vaguely something about them wanting to keep 6-8 R38 cars when they retired (cars in the 4140-range at Concourse Yard), but these were quickly scrapped after.
Not that I'm complaining that we have too many R33MLs, lol...but I am curious to know why we have a significant amount of them. Ideas and discussions welcome.