There was 14,700 / 15,000 tons remaining in the naval treaties that could be used for an aircraft carrier and that was too light for a Yorktown class but more advanced features than the Ranger's was desired. The CV-7 USS Wasp's hull was similar to the Ranger's and the island similar to the Yorktown class.
Initially there were no torpedo aircraft but once World War II started for the United States a small torpedo squadron was included.
To save on weight engines with lower power ratings were installed.
The hull was asymmetrical to help keep the Wasp light and to offset the weight of the island.
The engines rooms were separated by the boiler rooms.
There was compartmentalization to help in a torpedo hit, but no belt was added.
The flight deck had two catapults.
There were three elevators installed on the Wasp, with one of them being located on the edge of the flight deck.
The hangar was 500' x 75' x 17' 2".
There were catapults on each end of the hangar deck.