RMS Arlanza (1911)

History
United Kingdom
Name	RMS Arlanza (1912–15, 1920–38) HMS Arlanza (1915–20)
Owner	Royal Mail Steam Packet Co
Operator	Royal Navy (1915–20)
Port of registry	Belfast
Route	Southampton – Lisbon – Rio de Janeiro – Montevideo – Buenos Aires
Builder	Harland and Wolff, Belfast
Yard number	415
Launched	23 November 1911
Completed	8 June 1912
Commissioned	24 April 1915
Decommissioned	April 1920
Maiden voyage	21 June 1912
In service	September 1912
Out of service	April 1915
In service	July 1920
Out of service	August 1938
Identification	Official number 132021[1] Code letters HWCM (until 1933) Call sign GCQV (1934 onward)
Fate	Scrapped 1938
General characteristics
Class and type	A-series
Type	Ocean liner (1912–15, 1920–38) Armed merchant cruiser (1915–20)
Tonnage	14,622 GRT tonnage under deck 10,025 8,888 NRT
Length	570.3 ft (173.8 m) p/p, 570 ft (173.8 m) o/a[1]
Beam	65.3 ft (19.9 m)[1]
Depth	33.3 ft (10.1 m)
Installed power	14,000 ihp (10,440 kW)[2]
Propulsion	2 × Triple-expansion engines 1 × Low-pressure steam turbine 3 × Screw propellers
Speed	17 knots (31 km/h)[3]
Capacity	1,390 passengers: 400 × 1st class 230 × 2nd class 760 × 3rd class[3]
Armament	In RN service: 6 × 6 in (150 mm) guns
Notes	Sister ships: Alcantara, Andes, Almanzora

RMS Arlanza was a 14,622 GRT ocean liner of the Royal Mail Steam Packet Company. She was built in Belfast in 1912 for RMSP's scheduled route between England and South America. She was a Royal Navy armed merchant cruiser from 1915 until 1920. She returned to civilian liner service in 1920 and was scrapped in 1938.