So I guess this has been discussed for a while, but I still would like to hear some discussions about this (since personally I am also building carriers myself) so as to brainstorm about this a bit. There are some flared up discussions before, and after some data mining about designs, I came up with the following conclusions about their pros and cons. Enclosed Carriers -Carriers that have a large shell surrounding the fighter deck, or the fighter hangars are inside the carrier as a part of the interior. Pros: -Fighters are protected from a surprise attack or a particularly heavy meteor storm. -Repair crews are also protected from hazards-grinding and repairing is easier. -Runaway is possible for a fighter to escape its aggressors (if you have an enclosed runway). Cons: -The fighter hangar will be more confined in space, have a smaller capacity and/or increase the overall size of the carrier. This means more space will have to be used to accommodate the fighters and relevant conveyor systems. -More armor will be needed to surround the carrier which increases overall mass. -Landing and takeoff will be trickier because you will have to land somewhere to get into the hangar, especially if you don't have a runway. Open Deck carriers: -Carriers whose fighter deck is exposed to the environments similar to a modern carrier at sea. Pros: -Designing is easier as it's planar by nature. -Taking off is easier even if you don't use a VTOL or you use a forward heavy fighter because of a larger surface. -Stores more fighters as the whole surface can be used for docking of fighters. -More space is available for interiors such as cargo and repair stations. Cons: -Fighters are prone to bombardment and/or meteor showers. -Trickier for the repair crew to repair vessels especially if under enemy fire harassment. -Intel is gathered from your ship more easily (unless you have an interior deck as well). -Pilots cannot escape from enemy hostility by using the carrier runway as an escape. What kind of ships do you design? If you can, please also post your pictures to give an idea to everybody. Thanks.