Sorry for being cryptic. You know this better than I do. My vague point was that actual bedding arrangements can be compact and a fairly small part of the total crew space.
Yes, I have lived on a vessel designed to travel in a hostile environment. Yes, the bunking arrangement is a small part of the total crew space. However, the crew space allocation is determined by Shipboard Habitability Design Criteria Manual T9640-AB-DDT-010/HAB. In the photo with the Petty Officer Third Class standing in a 12 person Crew Berthing Space. The space between the four 3 bunk tiers is specified as 18 inches and is not taken from the bunks shown.
The space shown in the above the one of Crews Berthing is an Officers Bunk room is designed to accommodate three officers with bunks, hanging storage, work areas, with a bit of open space. The passageway outside the bunk room is 27 inches wide which is again not taken from the bunk room.
The photo of Crew's Mess is basically a common space. The distance between the tables and the interior wall where the four guys are standing is the passageway going to the torpedo room is at minimum 27 inches wide. The space between the tables and the passageway are not taken from the crews' bunks, officers bunk rooms, or from the staterooms allocated to the CO and XO.
The control room space, the equivalent of a surface ship's bridge, on submarines is not taken from bunks, bunk rooms, or staterooms. The space was determined by the stuff needed to operate the ship.
The bridge bridge space on the USS Simon Lake AS-33 was not taken from bunks, bunk rooms, or staterooms.
I purchased a copy of the Student's Edition of Architectural Graphic Standards and discovered there are similarities to the requirements in Shipboard Habitability Design Criteria Manual T9640-AB-DDT-010/HAB.
How would someone know how large the Enlisted Mess # 3 is? The design system is not that detailed.
Deciding how large specific rooms are is a part of the "Draw deck plans" phase. The same design can lead to radically different deck plans.
During the design process and on the sample of the MT Universal Craft Profile there is no mention of a space titled Enlisted Mess #3. The Bridge is mentioned as part of the MT Craft Design process and does not provide clear instructions on how much volume the space takes up like in CT and TNE/T4.
You are correct that the layout of a design using the same tonnage can be be totally different. However, each space's layout should be determined by the function of the space.
Look at the classic CT Scout: The design has a 20 dT "bridge", the deck plan has a room called "bridge" that is about 2,5 dT, the rest is presumably machinery between the hull and crew spaces. There is absolutely no need for the CT "bridge" component to be a single specific room of exactly 20 dT.
In my attempts to recreate the deck plans I have found that most of the tonnages calculated by the design rules do not match what is shown on drawing. For the most part they are short even when I add passageway and common areas back to the staterooms.
CT Traveller LBB 2 Starships 2e 1977/1981 p. 13
A. The Bridge: All ships must allocate 2% of there tonnage (minimum 20 tons) to basic controls, communications equipment, avionics, scanners, detectors, sensors, and other equipment for proper operation of the ship.
CT Supplement 7 p. 17 deck plan for the scout/courier's bridge space includes space tagged Avionics. According to the Interior Details on p. 16 Item 19 is the forward sensor position. Combining these two items bumps the bridge volume up to about 6.5.
A stateroom is 4 d-tons, the four on the scout/courier are drawn as 3 d-tons. Per the rules the passageway volume is taken from the staterooms indicating that three of the staterooms each provide 1 d-ton for the passageway.
Staterooms also, according to the rules, provide a part of their volume for common areas. On the Scout/Courier the Common Area appears to be 10 d-tons of which I guess came from the last stateroom. Two staterooms appear to have been allocate to the Common Area leaving 1 d-ton that was taken away from cargo being my guess.
Items 13 and 18 are basically cargo holds.
The passageway that has items 11 and 15 appears to use a 4 d-ton stateroom.
Has anyone found the Ship's Computer on the deck plans for the X-boat, Scout/Courier, Seeker, and SDB in CT Supplement 7?
CT LBB 5 HG 2e p. 27 The Bridge last sentence: "The bridge contains all necessary equipment for the control of the ship with the exception of the computer." In my opinion LBB 5 HG is even lighter than LBB 2.
MT on the other hand provides a way to determine the space requirements for communications, sensors, and avionics. The downside MT does not provide a clear way to determine the bridge space requirement.
