Second riding tests on carriage no. M.15932 with 'metalastick' bogie suspensions tests made between derby and Leicester, 12th August, 1960 (E-313)

Previous riding tests made on the 22nd and 23rd January, 1958 (see Research Department Report No. VT.13) indicated that' the riding characteristics of the carriage were unsatisfactory, and after a short period in service it was withdraw for adjustment of the bogie suspensions. A further study made on the...