Leslie Train Horns

Jackson Performance Products

The Leslie Horns operate on the same principle as the Nathan horns and like the Nathan horns, they are available in three and five chime combinations. Per-formance is similar to that of the Nathan Airchimes although some of the chords are slightly different as are the Leslie part and model numbering desig-nations. At the left is a Leslie three chime horn, an RS3K. Nathan numbers their horn bells as 1 through 5 with the higher number representing a higher pitch.

Leslie numbers their bells by the first two numbers of the horn pitch frequency, rounded off to the nearest whole number. Therefore a Leslie bell for A 440 is called a number 44 bell. A Leslie bell for D# which is 311 Hz is called a number 31 bell. The construction is somewhat different. Each Nathan horn unit is a stand-alone complete horn. It is advisable but not necessary to use the manifold/bases. Leslie horns are assembled onto the manifold which is also an integral part of each horn, so it is not possible to use Leslie horns without the manifold. Below is a Leslie five chime unit, an RS5T

Three views of a Leslie RS5T horn. The side view shows how the individual horns and power chambers mount to the manifold, the picture above shows the front view. Notice that the bottom of the largest bell, the #25, has a slight cut-away flat on the bottom. This to make it clear the roof of the loco-motive cab. Hear it on test setup below.

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