Talk:Skywatch Aerial Alliance/@comment-11135771-20140601015806/@comment-11135771-20140601023134

It's a flying aircraft carrier; the hole is the front of the hangar. The EAF variant is the same, except that the upper deck extends past the front of the carrier deck to give additional space for guns (the EAF upgrade has a bit more of a focus on direct combat, although it's still very much a long range focused warship) and to better protect the planes until they get airborne.