This is an offshoot of an off-topic digression from the "TOS Galileo Shuttlecraft, the Bob Villa version" thread.
What size is the "real" Enterprise. What scale is the studio model?
Phil Broad posted the following in that thread. He was responding to previous posts. To understand this discussion in context you'd probably better read up on the previous thread.
X15-A2 said:
SNIP
The scale of the Enterprise miniature is not 1/84 or 1/85th, period. Rick [Sternbach] is mistaken if he believes that the studio art departments drew plans in odd scales like that, they don't. They draw plans in scales that they can measure with rulers, such as; 1/8, 1/12, 1/16, 1/32, 1/48, 1/96th, etc. If the model to be built is larger than they can comfortably draw on a given sheet of paper then it is drawn at a smaller scale and a note is placed on the face of the drawing such as "build twice size".
The obvious answer here is that the Enterprise is not 947 feet long. This is my belief; the Writers Guide plans have incorrect notations. The Enterprise is bigger, not a lot but somewhat (about 100 feet, more or less). Also, at 1/96th scale the dimension between the centerlines of the Warp Drive nacelles "hits" at 302 feet. This tells me that if the length does not hit but the centerlines do, then the Enterprise is not built to the proportions of the Writers Guide dimensions either, otherwise they would all "hit" or all "miss" but not a little of both. It is possible that the actual drawing or "cartoon" (engineers typically work according to dimensions only, the drawing is derisively called "the cartoon") is correct but the dimensions are off.
This opinion is based on my experience as a professional draftsmen and also the study of hundreds of sheets of studio blueprints in my collection. Of course this note won't change the minds of most people but those with my kind of experience will know what I'm saying is true.
Everyone is entitled to their own opinion of course but I haven't heard any compelling reasons to change my position on this (yet, mind not nailed shut).
SNIP
Phil Broad
Model Builders Reference Vault
http://www.cloudster.com
As I stated earlier in the previous thread, you are quite correct about studios never blueprinting in anything but a rational scale. The ship was originally drafted to yield a 33.75" model (the "3-footer") in 1:192 (1/16" = 1'). These same plans were used to build a 4X model (the "11-footer) in 1:48 (1/4" = 1'). The bizarre 1:84.75 scale is the result of an after-the-fact size change that happened after the blueprints were drawn and probably after at least the small model was built.
That said, there are several reasons I believe that the Enterprise is, in the end, intended to be 947'. One of them is that the original artboard drawing that was made for the Writers' Guide/TMOST was drawn in a scale logically derived from 947' (1:1152 or 1"=96'). It doesn't work out to a reasonable scale from 1080'.
One of the points you raise is that the dimensions on the Jefferies 3-view don't match the drawing. This was my initial assesment, too, when I had only the TMOST reproduction to go on. However, upon examination of the scan of the original artboard, I find that they DO in fact match the drawing pretty well, given that they are such small drawings to begin with. What is more, they also match the model "as built" quite well, too. Where they differ is in the relative position of the components to each other. For example, each component is pretty much the same size and proportion as built; but on the model, the engines are mounted closer together since the pylons anchor lower on the engine rather than at the center line. The pylons also anchor in the Secondary hull lower than the centerline. These were apparently modifications made for ease of construction. Also, the dorsal pylon is much thicker on the model than on the drawing (for obvious reasons), and it holds the primary hull a little higher aloft.
It seems to me that, when the components are all the proper size at the stated dimension (947'), to look past this and focus on the fact that the engines happen to be the "right" distance apart if you enlarge it bigger than it is supposed to be is to miss the point. You end up with one dimension "right" and all the rest of the dimensions "wrong." There is simply no justification for doing this, especially when it is a detail that was obviously changed when the model was constructed.
I am attaching below a few images to illustrate how close the drawing is to the model as built. The Jefferies drawing is reproduced in blue and the Polar Lights drawing of the same component is overlaid in red to the exact same scale. I have it on good authority that the PL blueprints are extremely accurate except for a few minor (intentional) details. None of these details bear on this discussion.
I hope the above demonstrates at least why I have "left the fold" on the 1:96 scale. It is not that I don't think a case can be made for a larger ship. As you mentioned previously, you need all the space you can get to shoehorn in the shuttle bay! But I have been forced back to 947' (somewhat unwillingly, I admit) by these, and other facts.
BTW, I don't think I mentioned before how much I am impressed by the recent updates on your site. I absolutely love what you've done with the Hangar Deck! You seem to have a real knack for putting yourself in the design aesthetic of the original series. In reference to style, it is of a piece with the original art direction. And it is functional, to boot. Great work!
Mark Gagen