A couple of weeks ago, I submitted a starship design (USS Caronte), and when I reached the crew field, I really did not know what to write in.
Therefore, I decided to do a bit of research, mostly from ST:TMP
Bridge: 11 posts x 3=33
Engineering: 6+Scotty+3coming in, max:18 x 3=54
Torpedo room, 6 x2 x3=36
Maintenance crew =30 (based on office with ~ 900 PCs, 24/7)
Security 8 x3=24
Science =50
Medical ~ 1/10th = 25
Crew services ~ 1/10th = 25
Total = 277
I calculated that there should be 3 shifts for each post. The security staff might seem small, but we hardly see more than 2 or 3 of them in any movie / show at any time, and the science staff it's just a number. I guess it could change a lot according to the mission at hand.
If in my much smaller starship design I keep the same crew, just using one of the bigger decks from the primary hull will leave a huge average crew quarter of about 27 m2 (about 100 sq.f ?)
Has anyone tried to estimate the crew compliment before? (I would bet yes

)
Any comments regarding my estimates?
Diego