The only way you get a D7 being only ~200ish meters long is if you assume that the Klingons are using ~2 meter decks to our 3.5 meter decks (that's about as small as you could reasonably go while maintaining crew spaces large enough to be comfortable for human-scale life forms to move in).
Meshes up quite well with the Constitution class before the rebuild being 289 metres long, 127.1 metres wide and 72.6 metres tall. Ergo even excluding the multitude of background sources from over the decades the D7 is ~228 metres long.
For reference, I mocked up an "about" what a D6/D7 deck layout would be. the main body of the ship is about the same height as the saga (~11-12 decks) but the overall lines mean it's simply a substantially larger ship.
that's a rough of approximately where the decks are. The D6/D7 is not small, it is not small at all even discounting the pylons and nacelles. The only way you get a D7 being only ~200ish meters long is if you assume that the Klingons are using ~2 meter decks to our 3.5 meter decks (that's about as small as you could reasonably go while maintaining crew spaces large enough to be comfortable for human-scale life forms to move in).
Now, Klingon technology being better during this time period plus their overall design preferences might allow for smaller deck height, I'll grant, but for comparison purposes I've been assuming that most human sized species build their decks at about the same size vertically.
Or perhaps the windows in that drawing is simply wrong, or those markings should be taken to represent something other than windows.
Regardless:
(1) The D6 and D7 are not that big in this quest.
(2) The D7 is not considered to be that size by most Star Trek fans, who have studied this at exhaustively greater length than you or I.
(3) It is not stated to be this size in any licensed Star Trek media.
An official size comparison of the D7 and a Constitution class star ship:
EDIT: Did not see this had already been posted by @grimely!
For reference, I mocked up an "about" what a D6/D7 deck layout would be. the main body of the ship is about the same height as the saga (~11-12 decks) but the overall lines mean it's simply a substantially larger ship.
that's a rough of approximately where the decks are. The D6/D7 is not small, it is not small at all even discounting the pylons and nacelles. The only way you get a D7 being only ~200ish meters long is if you assume that the Klingons are using ~2 meter decks to our 3.5 meter decks (that's about as small as you could reasonably go while maintaining crew spaces large enough to be comfortable for human-scale life forms to move in).
Now, Klingon technology being better during this time period plus their overall design preferences might allow for smaller deck height, I'll grant, but for comparison purposes I've been assuming that most human sized species build their decks at about the same size vertically. anyway.
[X] Extra Crew Quarters
[X] Cargo Bay (+3 Cargo)
because that seems to be the "Keep it at home when it's not blasting Klingons" option which is my desire.
Or, alternatively, the Klingon aesthetic calls for no large windows because they look vulnerable, and so the section used as a guide for how many decks there are is actually only one deck with two rows of small windows.
[X] Stellar Dynamics (+2 Science)
[X] Extra Crew Quarters
I still feel weird about not having cargo.
I even made a comment about you can put crew in the bulk cargo hold a lot more easily than you can put bulk cargo in the crew cabins. Having even a small amount of cargo feels like a fairly vital part of the ship. Even a single point!
I legitimately feel like it was choosing the small engineering choice directly took away our comfortable cargo ability. Just needed that one extra small module! However that's not a complaint - that also gave us a lot of the excellent hull synergies we had, like only needing two type 3 thrusters. (Though perhaps if we went bigger the 4 type 2 vote would have won?)
That's just engineering though. I do feel like the half saucer mixed with only two engines performed very well in the total amount of modules we've gotten out of the saucer section.
Do feel free to correct me about module numbers, but overall I think this has came out as an absolutely banger of a ship.
I look forward to this thing doing patrol and cartography at the same time while occasionally annihilating an enemy ship while still maintaining enough technology to deal with random science encounters.
[X] Stellar Dynamics (+2 Science)
[X] Extra Crew Quarters
I still feel weird about not having cargo.
I even made a comment about you can put crew in the bulk cargo hold a lot more easily than you can put bulk cargo in the crew cabins. Having even a small amount of cargo feels like a fairly vital part of the ship. Even a single point!
I legitimately feel like it was choosing the small engineering choice directly took away our comfortable cargo ability. Just needed that one extra small module! However that's not a complaint - that also gave us a lot of the excellent hull synergies we had, like only needing two type 3 thrusters. (Though perhaps if we went bigger the 4 type 2 vote would have won?)
That's just engineering though. I do feel like the half saucer mixed with only two engines performed very well in the total amount of modules we've gotten out of the saucer section.
Do feel free to correct me about module numbers, but overall I think this has came out as an absolutely banger of a ship.
I look forward to this thing doing patrol and cartography at the same time while occasionally annihilating an enemy ship while still maintaining enough technology to deal with random science encounters.
Not exactly my best work, though I've got to say that even using JPEG this art is really smooth, but I believe this should be about right. Beam for the D7 is 160m so it might be a bit much.
Come to think of it, have any of the Klingon ships' interior sets featured windows? I do not recall seeing any in Star Trek IV, TNG, DS9, or anywhere else.
Window scaling outside of the hero ships in Star Trek is often very fraught with error, because you get all sort of stuff like the huge Enterprise D model being used to represent ships that are meant to be less than half the length or beam with windows just like the big gal making these ships huge monstrosities.
Obviously less of a problem in TOS but if the models were given windows at all it was probably to break up what would otherwise be a very bland model with a detail that can be seen on 60s era tv screens.
[X] Main Cargo Bay (+3 Cargo)
[X] Expanded Medical (+2 Science)
[X] Science Labs (+4 Science)
Any of these are fine by me. Expanded medical facilities fit with this ship's main function, a warship.
The cargo bay could have some ancillary synergy with it being a warship, and opens up the possibility of carrying extra provisions. If the design isn't losing any combat functionality, then a full suite of basic science labs would be very welcome, both for ancillary synergy with its primary purpose and to provide extra functionality.
Come to think of it, have any of the Klingon ships' interior sets featured windows? I do not recall seeing any in Star Trek IV, TNG, DS9, or anywhere else.
I'm quite sure we haven't unlocked this technology yet. We're not even close to infinitely improbable, never mind plumbing the mysteries of bistromath.