- Hold down arrow to hear the whistle - Press space .................A. N C. & T. R. R. Class 15 No. 19 ............... > No. 19, A rip-off Mason bogie! The trio of Class 15s where used to aid the 8-10-C's as well as bankers and shunters. With he class being so compact meant that they would traverse tighter curves than the ten-wheelers, while still having the strength of them too! No. 19 Would typically seen Shunting in the yards of Memphis. .............A. N C. & T. R. R. Class 15 No. 20 & 21 ............. > No. 20 & 21 Was Given a all black Livery as a experiment, which the RR quite liked. The two have huge spark arrestors and the main differing feature of the two is that No.21 came with a Shunting Pilot, and 20 kept her plow. A plow wasn't too necessary, since these old girls are slow, and really like to rough ride at their top speeds. Which is estimated to be about 46-mph on a good day. > If you have any questions about the engine, just lmk! > Maskerade-Suite "Mazurka"