[5] Another feature that differentiated the two liners was that Carmania had two tall forward deck ventilator cowls, which were absent on Caronia.

She completed the voyage in 7 days, 9 hours and 31 minutes, averaging 15.97 knots (29.58 km/h) over the 2,835 nautical miles (5,250 km) route.

[8] Ernest Shackleton returned to Liverpool from New York after his US lecture tour, travelling 1st Class on Carmania from the 18th to the 28th May 1910.

[2] On an eastbound crossing in October 1913 Carmania answered a distress signal from Volturno to pick up survivors in a storm, which resulted in many awards for gallantry being presented to various members of her crew and Captain James Clayton Barr.

[9] In August 1914, after the outbreak of World War I, Carmania was converted into an AMC, armed with eight QF 4.7 inch Mk V naval guns.

On 14 September 1914 she engaged and sank the German merchant cruiser SMS Cap Trafalgar in the Battle of Trindade.

Caronia was similarly refitted, and the two sisters kept busy until the shipping slump[13] caused by the Great Depression after 1929.

By 1930 Carmania's navigational equipment included submarine signalling and wireless direction finding.

[3] Carmania's bell is on display aboard the permanently moored HQS Wellington at Victoria Embankment, London.