Battlecruisers form a spectrum rather than a single technical type. At one end are reconnaissance-oriented ships such as the Lexingtons, designed to find, screen, and move ahead of the battle fleet. Other battlecruisers are optimized to destroy their own type or reinforce the battle line as a second formation. German and Japanese designs accept more of that supporting battle-line role because those navies have fewer battleships, whereas the Royal Navy can release its battlecruisers for wider missions. Fast battleships lie farther along the spectrum, sacrificing less fighting power for speed, while conventional battleships emphasize protection and sustained punishment.
Notable Point · 1:04:33-1:05:42
Battlecruisers as a spectrum of fleet roles
The label battlecruiser covers reconnaissance ships, battlecruiser-killers, and second-line fleet units whose design balance depends on the navy assigning the mission.