A comparison of some aspects of the IMD 13 (quartic) and 6-wheeler proposals for the advanced passenger train (IM-APT-195)

The principal weaknesses of the IMD 13 quartic train lies in its end vehicles, for it seems fundamentally wrong to except accurate steering to be derived from the vehicle bodies when these have to be fitted with & soft lateral suspension. If, as a result, the expected considerable dynamic superiority...