While the Norfolk & Western auxiliary tender ('A' tank) was considered a unit separate from the locomotive and main tender, 'A' tanks were in use more often than not behind class 'A' locomotives. The illustration shown above is very similar to the 'A' tanks used behind our N&W Y6a's and Y6b's, but there are subtle differences. The rivet and seam patterns are different from our previous version and the new version rides on Buckeye trucks rather than the original N&W T-40 trucks. The Buckeye trucks were used on the later conversions and they represent a limited number of the total conversions completed.