Alan, did you look in the LNER website _www.lner.com_ (http://www.lner.com) ? You can directly to the Y4 under locomotives. It says in there that coal was stored in the rear portion of the left side Side Tank. However, I wonder if this is the locomotive you are actually refering to. I think (but definitely not sure) that I saw somewhere a locomotive like the Y2 described as a Y4. I am no authority. Just want to point out the excellent website. Bruce MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.