The purpose-built British helicopter cruiser becomes Invincible

What would a purpose-built British helicopter cruiser look like?

It would look much like the Invincible class, whose hull and flight deck were designed around aviation rather than converted from a gun cruiser.

The historical design already supplies a concise answer: a purpose-built British helicopter cruiser looks like an Invincible-class ship. Starting from the keel avoids sacrificing a useful gun cruiser such as Belfast and provides a hull organized around aviation from the outset. The classification may emphasize cruisers or helicopters, but the flight deck and aviation spaces drive the vessel's form. Conversion proposals and purpose-built aviation ships therefore lead to very different layouts.