I heard that one company (possibily Boeing; I don't know it's name) going to make 1000 seats Superplane!!! I was think that these plane can be three-floored! If three floores are no safety, it can be only two-floored, but two floor, don't like B747, can be on all aircraft (not only in first part of airliner). If we put seats into AN-225 "Myria" (I think that Antonov Design Bureau will build a passenger modification of this plane) Two floors will be on all aircraft.
Do you ever seen Aerospacelines Super Guppy (if don't you can see it. Search photos in advanced search)? If we put seats in it? There be Super-Ultra-Extra-Jumbo-Big passenger plane. But this plane will be unsafe.
I have good thinks about aircraft designing in future. This part is about my projected aircraft:
Plane have two noses. They don't connected. It like two planes when view from nose. In the middle are wings. Theres three engines on each. And one 'wing' which connect two sides of plane. In each side is two aisles (3-4-3---3-4-3). On the connection 'wing' is one engine. There are two pilots on a plane (one is in one part, second is in another part). The connection 'wing' width is small. The aircraft have two tails. But in tale is another (smaller) conection 'wing'.
This airplane will be safe, because space between two parts will be about 5 meters, and were people will can go. There can be airplane with many parts
(2-3-2---3-4-3---4-4-4---3-4-3---2-3-2. In middle section will be economy class, and in first class in outer section. This will make because if more passengers sit in section, the section weight will be more too. If outer parts weight be bigger then middle, connection wings will broke. Plane can be combi: 3-4-3---cargo---3-4-3).
This plane is like two planes (passengers and board can't get from one part to another), but running costs are lower.