• (p. pr. & vb. n.) of Ramp
Gradual programmed increase/ decrease in temperature or pressure to control cure or cooling of composite parts.
The noise made by the 3-phase traction control on the 1996 Tube Stock during acceleration and braking. This is due to the GTO thyristors used on this type of control. It does not occur on the 1995 Tube Stock because it has IGBT control.