is still occasionally cited as a reference regarding the legal distinction between "towage" and "salvage". Improved road services connecting outlying regions of south-eastern Tasmania brought an end to commercial river steamer services, so by the 1950s, the vessel was almost exclusively engaged in excursion work around Hobart for new owners Roche Brothers Pty. Ltd. In 1958, Cartela was extensively altered, being converted from a steamship to a motor vessel. In 1975, following the Tasman Bridge disaster, she was fitted with more powerful engines for use as a ferry. Cartela is now owned by the SteamShip Cartela Trust on behalf of the Tasmanian people. In recognition of her being one of the very few timber vessels that has remained in continuous commercial service for a century, in 2016 it was announced that she would undergo a complete renovation and be returned to steam power. That would including the refurbishment of the original Plenty & Sons steam engine. Engines First Engine Cartela's first engine was a reciprocating triple-expansion steam engine built by Plenty and Sons, Newbury, England. It had three cylinders, powering a four-bladed propeller in diameter. . The engine was used from 1912 to 1958. Coal bunker capacity was . Second Engine Cartela's second engine was a Vivian 8-cylinder diesel engine (@ 600RPM), powering a single propeller by . The engine was used until 1975. Third Engine Cartela's third engine was installed to give her the speed provided by her original steam engine. It was a 6-cylinder turbocharged Caterpillar diesel engine, producing (@ 1800RPM). Fuel tank capacity was 1800 litres. References Further reading George Cox, Ships in Tasmanian Waters, 1971 John Duffy and Louis Rodway, The Cock of the River "Cartela"'', 1996 External links Cartela Trust website owners of the M.V. Cartela Ferries of Tasmania 1912 ships Ships of Australia