RMS Mooltan

	Mooltan under way
History
United Kingdom
Name	RMS Mooltan (1923–39, 1941–54); HMS Mooltan (F75) (1939–41);
Namesake	Multan, Punjab
Owner	P&O Steam Navigation Co
Operator	P&O SN Co (1923–39, 1941–54) Royal Navy (1939–41)
Port of registry	Belfast
Route	Tilbury — Australia
Ordered	29 November 1918
Builder	Harland & Wolff, Belfast
Yard number	587
Launched	15 February 1923
Completed	22 September 1923
Maiden voyage	5 October 1923
Identification	UK official number: 145435; Code letters: KPNG (until 1933); ; Call sign: GFBC (from 1934); ;
Fate	Scrapped 1954
General characteristics
Type	Ocean liner
Tonnage	20,847 GRT; tonnage under deck 17,305; 12,823 NRT; 16,032 DWT;
Length	600.8 ft (183.1 m) pp
Beam	73.4 ft (22.4 m)
Draught	34 ft 10 in (10.6 m)
Depth	48.6 ft (14.8 m)
Decks	5
Installed power	after 1929: 2,878 NHP; 15,300 shp (11,400 kW)
Propulsion	8 oil-fired 215 psi (1,480 kPa) boilers; 2 × 4-cylinder quadruple-expansion steam engines; plus (after 1929) turbo generators & electric motors; twin screws;
Speed	(after 1929) 17.5 kn (32.4 km/h)
Capacity	Passengers:; 327 first class; 329 second class;
Crew	423:; 10 officers; 94 seamen; 22 engineers; 82 firemen; 215 saloon crew; plus 174 gunners (during the Second World War);
Armament	2 × BL 6 inch Mk XII naval guns; 2 × QF 3 inch 20 cwt anti-aircraft guns; 1 × Bofors 40 mm anti-aircraft gun; 10 × Oerlikon 20 mm cannon anti-aircraft guns; 4 × .303 calibre Hotchkiss machine guns; 1 × rocket launcher; 1 × barrage balloon;

RMS Mooltan was an ocean liner and Royal Mail Ship of the Peninsular and Oriental Steam Navigation Company (P&O). She was ordered in 1918 and completed in 1923. She served in the Second World War first as the armed merchant cruiser HMS Mooltan (F75) and then as a troop ship. She was retired from P&O service in 1953 and scrapped in 1954.

Mooltan was unusual in combining both quadruple-expansion steam engines and turbo-electric transmission. When completed in 1923 she had only her quadruple-expansion engines, but in 1929 turbo generators and electric propulsion motors were added alongside them to increase her speed.

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