<page_title> List of battlecruisers of the Royal Navy </page_title> <section_title> Invincible class </section_title> <table> <cell> 8 × 12-inch (305 mm) <col_header> Main guns </col_header> <col_header> Commissioned </col_header> </cell> <cell> 6 inches (152 mm) <col_header> Armour </col_header> <col_header> Fate </col_header> </cell> <cell> 4 screws, steam turbines, 25 kn (46 km/h; 29 mph) <col_header> Propulsion </col_header> </cell> </table>
Of the battlecruisers built, the Invincible class had 6 inches (152 mm) of armour on their waterline, a top speed of 25 knots (46 km/h; 29 mph), and eight 12-inch (305 mm) guns.