Big Four (White Star Line)

RMS Celtic RMS Cedric RMS Baltic RMS Adriatic
Class overview
Builders	Harland and Wolff, Belfast
Operators	White Star Line
Preceded by	RMS Oceanic
Succeeded by	Athenic class
Built	1901–1906
In service	1901–1934
Planned	4
Completed	4
Lost	1
Retired	3
General characteristics
Type	Ocean liner
Tonnage	20,904 GRT–24,541 GRT, 13,449 NRT-15,638 NRT
Length	700 to 730 ft (210 to 220 m)
Beam	75.3 ft (23.0 m)
Depth	44 ft (13 m)
Propulsion	Steam Quadruple expansion engines, powering two propellers, total 16,000 hp (12,000 kW)
Speed	17 knots (31 km/h; 20 mph)
Capacity	c. 2,850 passengers

The "Big Four" were a quartet of early-20th-century 20,000-ton ocean liners built by the Harland & Wolff shipyard for the White Star Line, to be the largest and most luxurious ships afloat. The group consisted of Celtic, Cedric, Baltic and Adriatic.