Ajax-class ship of the line

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Class overview

Name:	Ajax
Operators:	Royal Navy
Preceded by:	Mars-class
In service:	17 January 1798 - 1881
Completed:	2
General characteristics
Type:	Ship of the line
Length:	182 ft 3 in (55.5 m) (gundeck) 149 ft 8 in (45.6 m) (keel)
Beam:	49 ft 3 in (15 m)
Propulsion:	Sails
Armament:	74 guns: Gundeck: 28 × 32 pdrs Upper gundeck: 30 × 24 pdrs Quarterdeck: 12 × 9 pdrs Forecastle: 4 × 9 pdrs
Notes:	Ships in class include: Kent, Ajax

The Ajax-class ships of the line were a class of two 74-gun third rates of the Royal Navy. They were grouped in with the large class of 74s, as they carried 24 pdrs on their upper gun decks, rather than the 18 pdrs of the middling and common class 74s. The design of the Ajax-class was a lengthened version of the Invincible.