US Navy aircraft carriers rely on steam or electromagnetic catapults to launch aircraft, a launch system more effective and efficient than the ski jumps seen on Russian and Chinese carriers.
The Navy has taken possession of the four 32-ton propellers. It is unclear at this time what the Navy intends to do with them.
Part of the decommissioned USS Enterprise's steel hull has been taken out and melted to become part of the keel, a structural backbone for the ship, for the future USS Enterprise (CVN 80), one of the Navy's elite new Ford-class supercarriers.
There is also the possibility that parts of the nuclear reactor plant can be used on other carriers, despite the plant being quite different from more modern carriers, having eight small reactors rather than the two larger ones seen on Nimitz and Ford-class carriers.