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Sayeth Switch8frog: "Hi,Oldtimer;; For years I have been reading about N&W "s Super steamers of 1952.Never could figure out why their steam figures were so kept secret. However, your post has revealed a very good insight on the subject of the A & Y6B. Thank you very much. Switch8frg." If by "Super steamers of 1952" you mean those class "A1" and "Y6c" engines described by Robert A. Le Massena in a TRAINS article and in his revised book on articulated locomotives, don't worry. They didn't exist. Le Massena speculated that Class As and Y6s were modified to carry 315 pounds of boiler pressure, and the class A frames were leaded like those of the low-pressure engines of the Y5s and Y6s. He was led to this conclusion by his erroneous thinking that the A 1239, in its tests after the F7 tests, performed better than the original A test on the Scioto Division in the Wartime '40's. In his mind, any increase in performance had to come from fiddling with the locomotive. It didn't. I refer you again to Volume 3 of Louis Newton's RAILS REMEMBERED for the straight dope. Newton was present for both the 1239 tests and previous tests of Y6s on the Pocahontas Division. After Le Massena's TRAINS article, Newton had a rather extensive letter to the editor rebutting Le Massena's conclusions. Old Timer
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