What is the most common type of aircraft carrier built across navies?
Short answerThe light fleet carrier, which can approach fleet-carrier capability without the same size and expense.
NotesThe light fleet carrier is selected as the recurring practical type. It can undertake work approaching that of a fleet carrier while remaining smaller and less expensive. The Invincible class is given as an example. National labels vary, so some ships described as fleet carriers fit this lighter category in the comparison.