ASTT publishes Volume 5 in the “Porta Papers” series.
ASTT has added “Porta Papers Volume 5” to its book catalogue. It fills 340 pages, with 21 papers grouped into five categories: Modern Steam Concepts; Exhaust Systems; Compound Locomotives; Articulated Locomotives; Miscellaneous Topics. The section on exhaust systems should be of especial interest to readers. It consists of three papers by Porta and a commentary […]