For my reference purposes, a map of RN ship classes by rate
First rates
edit120 guns
editCaledonia-class → Nelson-class
100/110 guns
edit- One offs: HMS Victory, HMS Royal Sovereign, HMS Royal George, HMS Ville de Paris, HMS Hibernia, HMS Queen Charlotte, HMS Queen Charlotte, HMS Queen
Second rates
edit90/98 guns
editSandwich-class → London-class → Barfleur-class → Duke-class → Boyne-class → Neptune-class → Boyne-class → Rodney-class → Albion-class
- One offs: HMS Queen, HMS Ocean, HMS Impregnable, HMS Trafalgar
80 guns
editCanopus-class → Vanguard-class
- One offs: HMS Indus, HMS Hindustan, HMS Calcutta
Third rates
edit80 guns
edit- One offs: HMS Caesar, HMS Foudroyant, HMS Waterloo, HMS Cambridge
70-78 guns
editCommon class
editDublin-class → Hercules-class → Bellona-class → Arrogant-class → Canada-class → Ramillies-class → Albion-class → Elizabeth-class → Royal Oak-class → Culloden-class → Alfred-class → Ganges-class → Courageux-class → Fame-class → Repulse-class → Swiftsure-class → Vengeur-class → Black Prince-class
- One offs: HMS Fame, HMS Hero, HMS Suffolk, HMS Ajax, HMS Egmont, HMS Conqueror, HMS Brunswick, HMS Dragon, HMS Rochfort, HMS Carnatic, HMS Imaun, HMS Hastings, HMS Boscawen, HMS Cumberland
Middling class
edit- One offs: HMS Conqueror, HMS Spencer
Large class
editValiant-class → Mars-class → Ajax-class
- One offs: HMS Plantagenet, HMS Courageux, HMS Bulwark, HMS Revenge, HMS Milford, HMS Colossus, HMS Warspite
68 guns
edit- One offs: HMS Conqueror, HMS Temple
64 guns
editEssex-class → St Albans-class → Exeter-class → Ardent-class → Intrepid-class → Worcester-class → Inflexible-class → Crown-class
- One offs: HMS Asia, HMS Veteran, HMS York, HMS Ardent, HMS Monmouth, HMS Agincourt, HMS Lancaster
Fourth rates
edit60 guns
edit- One offs: HMS America