....small split freighter. The images in the Recognition Manual are exactly the same , but the mast height is 87.9 for the former and only 74 for the latter. (Think stadimeter.)
I did several searches which turned up nothing about this. ..though I did run across an old thread claiming to know why they are named split...with a photo showing one blown in half...

..good for a laugh.
So..how do you tell them apart? Or do you not care and use either the accuracy fix mod or auto targeting?