Our combined technologies improve tractive effort allowing you to
PULL MORE WITH LESS.

Thermal Protection
Testing on Jett Hill in Frankfort, Kentucky demonstrated operation in short time rating zones (up to 1,600 amps) for 15 minutes before the Control System automatically reduced amperage to prevent damage to the traction motors. Conventional locomotives need an operator to reduce power after 5 minutes.

Individual Axle Control
On a conventional locomotive, when a wheel slips, all the axles on the truck drop power to regain traction and lose precious momentum. Often, the engineer must override the system with the more effective "manual" throttle modulation. Our traction control system reduces and reapplies power to the individual slipping axle while continuing to send full power to the remaining traction motors.

Tolerate more power being sent to conventional DC traction motors for longer periods of time. This provides for the RP Series leading 33% Adhesion, which brings it close to AC technology

In some conditions additional current is applied to the non-slipping axles, providing seamliess tractive effort and improved handling.

R. J. Corman Field Study
Jett Hill represents a constant 1% grade over 5 miles with 11 and 14 degree curves, on this stretch of track CSX rated a 3,000 hp GP40-2 for 1,550 trailing tons. While the 2,000 hp RP Series RP20BD is rated for 1,900 trailing tons.

Modular Design