Roberto wrote:
Well, thanks for taking the time and finding out the error is not as large as it initially seemed.
Some of us have the means to have scale plans and all, most of us do not.
Yes, after spending close to 200 bucks for a kit as researched as the Intrepid, I am a bit disappointed to find out (and it took a mere comparison with the much derided Trumpeter Essex) that this kit is too short, and that all the proportions of the side walls have somehow been altered.
I am also glad someone had the resources to show us that the shortcomings can only be MASKED rather than FIXED.
Spare us the sarchasm Mr. Cadman, because I would not have spent 200 bucks on something this off the mark.
I am still going to build it and place it as far as possible from the (correctly scaled) Trumpeter Essex.

Hi, Roberto,
I think the scale-issue with the Interpid-kit has been answered by a research by Maarten Schönfeld in another thread on this forum in "Calling all Cold War Essex-class Fans!".
When putting the hulls of the Intrepid against the Trumpeter-kit I also noticed the difference in length as Martin did.
Maarten mailed me the building plans of the Essex, but the same info can also be seen in Mark's plans. The bow (Front Perpendicular) is at frame 0, the rudder axis (which seemed to me a better reference-point than waterline-length or overall lenght) is at frame 195. The distance between frames is 4 feet, so the distance between frame 0 and the rudder axis is 780 feet. In 1:350 scale this is 679.3 mm, or 26.74 inch. I measured this distance in the Gallery kit and came out at 678 mm, just 1.3 mm too short. Maarten did a check on his Trumpeter Essex hull and measured 695 mm, or 15 mm too long. See his post attached here.
You're right in building both kits as they are, as the hobby is to have fun from building, isn't it? They both will look as an Essex-class...
Walter
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Gentlemen,
the only dimension of length which is of real use to us modelers is the Length between Perpendiculars (LBP or Lpp), as it a structural given for the naval architect and the engineers to design the ship structure. LBP is defined as the distance between the Forward Perpendicular (FP or FPP) and the Aft Perpendicular (AP or APP).
The FP is determined as the point where the Construction Waterline (CWL) intersects the bow (stem), and the AP where the CWL intersects the stern. CWL has very little to do with the real waterline, which is depending on the loading of the ship, hence Waterline Length can differ considerably from the LBP described above.
(Short note here: AP is often defined instead as the rudder axis, but this is not the case with the Essex class.)
So the key question is: where are FP and AP situated in case of the Essex? FP is at frame 0, forward edge of the stem at and below the CWL (Construction Waterline). AP is situated at frame 205, but this is not very clear in the drawings: someone scribbled 'AF' on the drawing at frame 205, but that point does not coincide exactly with the point where the actual waterline (and not the CWL) intersects the stern. But 205 is the correct position for AP.
As the LBP is given as 820 ft, the location of AP at frame 205 means that the frame spacing throughout the hull is 4 feet, which makes perfect sense. Any other location of AP would give a nonsense frame spacing.
As the rudder axis is located at Frame 195, this means that the distance between frame 0 and the rudder axis is 195 x 4 = 780 feet. In 1:350 scale this is 679.3 mm, or 26.74 inch.
My friend Walter measured this distance in the Gallery kit and measured it as 678 mm, or 1.3 mm too short. This must be quite acceptable for most builders I believe!
I also did a quick check on the Trumpeter Essex hull and measured this distance as 695 mm, or 15 mm too long. This is rather less acceptable I believe. So the real error seems to lie with the Trumpeter kit, not the Gallery one, I must conclude.
I hope this help to conclude this discussion, my friends!