Okay, so I was fooling around on the Intel Shipyard website using the Kelvin mini-page along with screen-caps from Trek-Core as reference points in an attempt to approximate the overall length of the USS Kelvin.
Here are the two images I used:
Kelvin Side Shot
Kelvin Reference
Based on the reference from Trek-Core, I assumed that the phaser turret was around 7/8 ft. tall and maybe 6 ft. wide based on how close the body floating in space is to it. I took that point of reference and applied it to the side-view of the Kelvin I ripped from the Intel promotional page.
Using a tool called J-Ruler Pro, I measured the phaser turret on the Intel picture to be around 2 px. wide. I then assumed that those two pixels represented roughly five feet of material. With these assumptions, I proceeded to approximate the various dimensions of the USS Kelvin:
Length (Saucer): ~409 pixels / 311.51 meters (1022 feet)
Height (Saucer): ~105 px. / 8 m. (26.5 ft.)
Height (Saucer - Tip of Bridge to tip of bottom bulb): ~52 px. / 39.7 m. (130 ft.)
Length (Nacelle): ~495 px. / 377 m. (1237 ft.)
Length (Secondary Hull): ~276 px. / 210.31 m. (690 ft.)
Length (Shuttle Bay Door - widest point) ~24 px. / 18.2 m. (60 ft.)
Length (Overall Ship): ~705 px. / 537.21 m. (1762.5 ft.)
I highlighted some of the more interesting approximations from my calculations. According to my data, both the saucer (~311 m.) and the nacelle (377 m.) of the Kelvin are larger than the Prime-Universe Constitution refit. Overall, my approximation puts the Kelvin slightly larger than the Excelsior-class.
Here is a comparison image to better illustrate my calculations. I borrowed the Constitution and Excelsior size diagram from Ex-Astris-Scientia's
Size of Excelsior page.
