Naval Historywith Dr. Alex

Q&A · 2:53:02-2:53:36

Why armour and air-group size became a carrier trade-off

Treaty displacement ceilings forced designers to trade armoured hangars against aircraft capacity; without the ceiling, a carrier could provide both.

Aircraft CarriersArmoured Flight DecksMidway Class Aircraft CarriersNaval Treaties
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Question

Why did carrier construction force a choice between an armoured hangar and a larger fighter group?

Short answer

Treaty tonnage limits created the trade-off; larger unrestricted carriers could combine armour with a larger air group.

Notes

The familiar armour-versus-air-group debate arose from treaty limits instead of an unavoidable design law. With a fixed tonnage ceiling, weight allocated to protection could not also enlarge the hangar and air group. Removing that ceiling lets the designer build a larger hull that carries both armour and more aircraft. The larger British Malta concept and the US Midway class show the path beyond the forced choice.