Adrian Featherstone will explain his involvement with the introduction of the trains into service in the 1970's.
Geoff Hudson will give his personal observations on the HST in the days of sectorisation as InterCity and then into the early days of privatisation.
Stuart Maclean is to explain hi role in the re-engining of the power car, the single most successful modification in the HSTs history.
Lastly Mark Hicks will forcast the future role of the HST in Scotland.