Information about the Portuguese railway network rolling stock.
The introduction of Diesel traction in Portugal in the 1940s led to a wide range of changes across the company, especially in terms of the rolling stock and locomotives.
The different kind of maintenance needed for this kind of machinery led to a maintenance workshop being built at Campolide especially for Diesel engines, managed by an engineer called João da Cunha Monteiro and new rules were drawn up regarding the repairs and maintenance. Keenly aware that a new era of railway traction was dawning in Portugal and across Europe, João Monteiro managed to ensure that the Campolide workshop enjoyed complete autonomy from the traditional structures such as the Campolide Engine Deposit, Traction Stock Area and responded directly to the head of the Rolling Stock and Traction Department.
In the early 1940s, CP began replacing steam with Diesel engines and modernising its rolling stock. It started negotiations with rolling stock suppliers to buy different kinds of vehicles and on 17.12 1942 it signed a contract with Otto Wolf to supply diesel-electric railcars.
The Second World War delayed the deliveries, not just because the prices went up considerably and it was harder to get funding, but because the company could not ensure the delivery times. Foreign purchases were postponed until after the war ended and CP built its own fleet of railcars using truck chassis with Chevrolet petrol engines and gearboxes, constructed at the Santa Apolónia workshops.
In order to renew its rolling stock and start migrating over from steam to diesel, CP had approved the acquisition of rolling stock on 04.08.1939. From the United States, it acquired 12 diesel shunting engines from General Electric and 28 carriages from Budd Corporation; 10 large Essling railcars, bought through Otto Wolf of Cologne. Four were diesel-electric and six were diesel-mechanical, and it also purchased 10 diesel-mechanical type-B railcars from Italy.
The outbreak of the Second World War postponed these purchases, not just because the prices went up considerably and it was harder to get funding, but because the company could not ensure the delivery times.