Caledonia-class ship of the line

	Launching of Trafalgar
Class overview
Name	Caledonia
Operators	Royal Navy
Succeeded by	Nelson class
In service	25 June 1808 – 1918
Planned	10
Completed	9
General characteristics
Type	Ship of the line
Length	205 ft (62 m) (gundeck); 170 ft 11 in (52.10 m) (keel); Broadened:; 205 ft 5+1⁄2 in (62.624 m) (gundeck); 170 ft 6 in (51.97 m) (keel);
Beam	53 ft 6 in (16.31 m); 54 ft 6 in (16.61 m) (broadened);
Depth of hold	23 ft 2 in (7.06 m)
Propulsion	Sails
Armament	120 guns (original):; Gundeck: 32 × 32-pounders; Middle gundeck: 34 × 24-pounders; Upper gundeck: 34 × 18-pounders; Quarterdeck: 6 × 12-pounders, 10 × 32-pounder carronades; Forecastle: 2 × 12-pounders, 2 × 32-pounder carronades; Poop deck: 2 × 18-pounder carronades; In 1847:; Lower deck: 4 × 8" 65 cwt 9', 28 × 32-pdr 56 cwt ; Middle deck: 2 × 8" 65 cwt 9', 32 × 32-pdr 50 cwt ; Main deck: 34 × 32-pdr 42 cwt; QD FC: 6 × 32-pdr 45 cwt, 14 × 32-pdr 17 cwt;

The Caledonia-class ships of the line were a class of nine 120-gun first rates, designed for the Royal Navy by Sir William Rule. A tenth ship (Royal Frederick) was ordered on 29 October 1827 to the same design, but was launched in 1833 as Queen to a fresh design by Sir William Symonds. The lead ship of the class, Caledonia, had "superb sailing qualities" and was chosen by the Board of Admiralty to serve as the model for all future three-decker ships of the line.