65 ft on WWII carriers, except Midway class, where it was lowered to about 50 ft to make the ship less vulnerable to Japanese radar. Modern carriers' flight decks are 80-90 ft above water. I've served as a jet pilot on all three classes, but recall exactly the "on-deck altimeter setting" for the Lexington (WWII) classes.
There is a flight deck on an aircraft carrier but, it is not an aircraft carrier as there are many other ships that have flight decks on them. The amphibious assault ship is a good example.
The flight deck...
90
About 80 feet.
Approximately 800 feet.
It is the aircraft carrier that has a runway called a flight deck.
60 feet
approximately 60 feet
Yes. Falling on the non-skid flight deck surface is painful, however, so it's easier just to play catch.
All of the risks associated with powered flight, combined with the risks of taking off from and landing on a very small flight deck which is moving at sea.
The superstructure refers to the structure above the flight deck. It contains most of the command and control operations of the carrier. To be clear, the superstructure (usually referred to as the "island") contains the ship navigation and control command center, as well as the aircraft communications and landing control centers. The combat information center (where all combat-related information and decision are located) is located aft, several decks below the flight deck. In general, for ships, "superstructure" refers to anything above the main deck, which is the flight deck on an aircraft carrier.
An aircraft carrier typically has a flight deck area of about 4.5 acres, which can vary slightly depending on the class and design of the ship. The overall size of an aircraft carrier, including its deck and internal structure, can be much larger, often exceeding 10 acres in total area. This expansive space allows for the operation of various aircraft and support equipment.