The rating system tied a warship's gun count to its expected place in fleet service. First rates carried at least 100 guns, second rates 84 to 98, and third rates 64 to 80. The 72- to 74-gun third rate offered a useful balance of firepower and layout. Fourth rates with 60 or more guns could serve in the line, while lighter fourth and fifth rates usually performed frigate duties. Sixth rates included smaller frigates, sloops, and brigs. This hierarchy explains how lighter rated vessels could reinforce the British and Dutch battle lines at Dogger Bank.
Chapter · 1:56-3:26
How the Age of Sail rating system shaped a battle line
The six-rate system tied gun counts to fleet roles, and the 72- to 74-gun third rate offered a useful balance for line-of-battle service.