Theoretical investigation of the Hastings vehicle (lateral and vertical) prior to its first test run from September to November 1974 (IM-DOS-023)

The existing Hasting's coach has the same flexible primary values as the EIT bogie (kyp = 3.4 MN/m, kyp = 12.0 MNm/radian). These primary stiffness values are not expected to be a serious limitation during early trials, as the H4X bogie is an adaptation of the EIT frame and has...