Owen Philipps had become Chairman of RMSP in 1903, and over the next five years had introduced five new, larger ships on the company's premier route between Southampton and the east coast of South America. The new ships came to be called the "A-series", as each had a name beginning with that letter.
Philipps was interested in using steam turbines in the "A-series", and discussed this with Charles Parsons who invented the turbine. But when the RMSP ordered the first member of the series, RMS Aragon, turbines were new to merchant shipping and almost untried. She and the next four "A-series" ships were therefore ordered with a pair of conventional quadruple-expansion engines powering a pair of screws.
After the fifth ship, RMS Asturias, was completed in 1908, it was clear that fuel consumption by steam turbines tended to be high, propellers driven directly by turbines were too fast for merchant service, and turbines running slowly enough to give a slow propeller speed for merchant service were inefficient. Reduction gearing was therefore being applied to allow turbines to run efficiently at high speed but drive propellers at low speed.
After Asturias another four "A-series" liners were built to a revised and enlarged design, with three screws instead of two. Each of the two outer screws was driven by a four-cylinder triple-expansion engine. The middle screw was driven by a low-pressure steam turbine,[4] driven by exhaust steam from the low-pressure cylinders of the two reciprocating engines.
Building
Arlanza was the first of the "A-series" ships to have three screws and a low-pressure turbine. Harland and Wolff in Belfast built her and her engines. She was launched on 23 November 1911 and completed on 8 June 1912.[5]
The ship had berths for 400 first class, 230 second class and 760 third class passengers: a total of 1,390. She had five holds and refrigerated cargo space for frozen meat.[3]
Early civilian career
Arlanza began her maiden voyage from Southampton on 21 June 1912. Two years later, on 27 June 1914, she gave a short publicity cruise for UK dignitaries, South American ambassadors and a former prime minister of China. UK guests included the Earl of Coventry, Earl of Dundonald, Marquis of Douglas and Clydesdale, Lord Aberconway, Sir Edward Elgar, Admiral Sir Herbert Purey-Cust, Admiral Sir Archibald Douglas and Major General Sir Douglas Hadden.[6]
After the UK entered the First World War, Arlanza remained in civilian service until early in 1915. On 16 August 1914 she was of the coast of Brazil with more than 1,000 people aboard when the German 14,349 GRTauxiliary cruiserKaiser Wilhelm der Grosse intercepted her[7] with the order "Stop or I will open fire". Next the German ship ordered her to dismantle her radio aerials and throw them overboard. Arlanza was then asked how many women and children she had aboard. When she replied "335 women, 97 children", the German ship ordered her to proceed.[8][9]
Late in 1915 Arlanza was sent to Arkhangelsk with a £500,000 consignment of platinumbullion. On her return voyage she was to bring a Russian delegation to Britain for a conference with the UK and France. On 21 October she left the Russian port, preceded by minesweepingnaval trawlers and followed by a convoy of merchant ships. Once she was clear of the part of the White Sea thought to be at risk of mines, the trawlers left her. An hour later a mine holed her near her forward hold.[10][13]
Arlanza's bow dipped 10 to 12 feet (3.0 to 3.7 m) lower in the water, but the bulkhead doors between her watertight compartments were closed and prevented her from sinking. Some of her lifeboats were launched and the Russian delegation was taken off. An accident when lowering one of the lifeboats dropped a number of Russian representatives and Royal Navy sailors into the icy water, but all were rescued. One of the trawlers returned to assist but struck one of Arlanza's propellers, which had been raised by the lowering of her bow. The trawler was holed and sank, but Arlanza remained afloat. Everyone who had been taken off returned aboard Arlanza.[14]
A party from the ship travelled by reindeer sledge across 10 miles (16 km) of snowy tundra to the Sami village of Yukanski for supplies.[14] The ship remained at Yukanskie anchorage.[15] On 10 November the armed merchant cruiser Orotava reached Arlanza. The next day they exchanged supplies: Orotava furnishing the damaged cruiser with steel cable in exchange for surplus cordite and ammunition. On 12 November Arlanza's captain embarked on Orotava with 29 of his officers, one petty officer and 221 of his ratings to return to the UK.[16] A reduced crew of nine officers and 100 men stayed aboard Arlanza in the White Sea, making temporary repairs to enable her to return to Ireland.[14]
On 7–9 April Arlanza moved to the Kola Inlet. On 3 June 1916 the Thames tug Racia reached Kola Inlet to tow the cruiser back to Belfast. On 26 June the tug started to tow the cruiser home, with the cruiser using her own engines to assist as required.[15] One source claims that the task proved too much for the tug, but Arlanza managed to return to Ireland under her own power.[17] However, Arlanza's log does not record Racia casting off. The two ships were still together on 30 June, but it is not clear whether the tug was still towing the cruiser by then. Arlanza reached Belfast on 8 July 1916 for repairs.[15]
On 9 November Arlanza sailed to Liverpool, and on 21 November she returned to service[15] on the Northern Patrol. From 10 July 1917[15] until the end of the war performed Atlantic convoy duties.[11][18] This included a trip to South America in 1918, carrying the members of a special diplomatic mission from the British Foreign Office.[19] She was decommissioned in April 1920 and returned to her owners.[11]
Later civilian career
Arlanza resumed commercial service in July 1920.[11] She remained continuously in regular liner service, whereas each of her surviving sisters now undertook cruising at least part-time and in some cases full-time. In 1924 she took Harland and Wolff Chairman Lord Pirrie to the River Plate to assess facilities for the newly ordered RMSP liners Asturias and Alcantara.[20] In 1929 Arlanza was converted from coal to oil fuel.[citation needed]
In August 1938 Arlanza visited South America for the last time. In Buenos Aires a cheering crowd bade her farewell as she left port. In MontevideoHMS Exeter's Royal Marines Band played her out of port and the event was broadcast by radio throughout Uruguay. On 6 September she reached Southampton and entered port flying a 170-foot (52 m) paying-offpennant from her mainmast.[21]
On 15 July 1938 Metal Industries Ltd contracted to buy Arlanza for £30,000 for scrap. Royal Mail Lines handed her over on 14 September and she was broken up at Rosyth.[21]
^Fisher, John (2017). "The De Bunsen Mission to South America 1918". In Fisher, John; Pedaliu, Effie G. H.; Smith, Richard (eds.). The Foreign Office, Commerce and British Foreign Policy in the Twentieth Century. London: Palgrave Macmillan. p. 89. ISBN978-1137465818.
^"Lot 655". Orders, Decorations and Medals (4 December 2001). Dix Noonan Webb. 2001. Archived from the original on 4 March 2016. Retrieved 27 January 2015.
"back to Rio". Royal Geographical Society of South Australia. – RGSSA blog post, image of 'Arlanza' and diary of voyage on Asturias, 1909
Nicol, Stuart (2001a). MacQueen's Legacy; A History of the Royal Mail Line. Vol. One. Brimscombe Port and Charleston, SC: Tempus Publishing. pp. 123, 131, 158. ISBN0-7524-2118-2.
Nicol, Stuart (2001b). MacQueen's Legacy; Ships of the Royal Mail Line. Vol. Two. Brimscombe Port and Charleston, SC: Tempus Publishing. pp. 99, 100, 111–114, 116, 122, 130, 140, 142. ISBN0-7524-2119-0.
Osborne, Richard; Spong, Harry & Grover, Tom (2007). Armed Merchant Cruisers 1878–1945. Windsor: World Warship Society. ISBN978-0-9543310-8-5.