Neptune-class ship of the line

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HMS Neptune at the Battle of Trafalgar
Class overview
Name	Neptune class
Operators	Royal Navy
Preceded by	Boyne class
Succeeded by	Boyne class
In service	28 January 1797–1857
Completed	3
General characteristics
Type	Ship of the line
Length	185 ft (56 m) (gundeck) 152 ft 6+1⁄2 in (46.5 m) (keel)
Beam	51 ft (16 m)
Propulsion	Sails
Armament	98 guns: Gundeck: 28 × 32 pdrs Middle gundeck: 30 × 18 pdrs Upper gundeck: 30 × 18 pdrs Quarterdeck: 8 × 12 pdrs Forecastle: 2 × 12 pdrs
Notes	Ships in class include: Neptune, Temeraire, Dreadnought

The Neptune-class ships of the line were a class of three 98-gun second rates, designed for the Royal Navy by Sir John Henslow. All three of the ships in the class took part in the Battle of Trafalgar in 1805.