Similar to double deck Aeroplane, can a double deck crewed mission spacecraft be designed and constructed?
Benefits: More astronauts in the manned mission spacecraft viz Mars, Moon, Jupiter etc.
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Sign up to join this communitySimilar to double deck Aeroplane, can a double deck crewed mission spacecraft be designed and constructed?
Benefits: More astronauts in the manned mission spacecraft viz Mars, Moon, Jupiter etc.
Yes. They can be designed. Big Gemini was a seven-person capsule design that took a two-seat Gemini capsule:
(Note: this image shows both the capsule (the black part) and the service module (the white part). The service module was not pressurized (when it got to space, there was vacuum inside it) and people did not go there.)
And put a second (and, depending on how you count decks, a third!) deck of seats below it.
(Note: while this looks similar to the above photo, these images do NOT show the service module, and the Big G(emini) extension is both pressurized & used to carry people. Below is an image that does show the cylindrical service module for Big G. It is so large, there's even a part that people can go into for experiments & more room to move around. They get there through a pressurized tube connecting it to the main capsule decks.)
After they were in space, the astronauts would be able to move between the decks using a hatch cut into the bottom of the "Little" Gemini capsule part.
While the vehicle was never built (we went straight to Apollo instead), mockups were made and some of the technologies (could you cut a hole in a heatshield safely?) were tested in the Air Force's related, also-ultimately-cancelled "MOL" program.
While they were on the pad, the first two astronauts would be above the other five--forming two vertical decks.
Meanwhile, the Shuttle (which was very much built) had 3 decks. People rode to space on both of the top two decks. People moved between them using a ladder. Below is a cutaway of the nose of the shuttle, which contained the main pressurized crew portion.