Hi Daniel. If my eyes deceive me or if the photograph is distorted by the camera lens (and this happens often) - my apologies beforehand.
But on this picture it looks as if the starboard side curves to the outside (yellow line) whereas the port side follows a straight line (indicated in blue).
View attachment 188211
Once again - if I am wrong, I am apologise.
It isn't the picture. It is the jig who is doing that effect.
Let me explain:
The jig will be gone (sanded) as the below picture of the Chinese modeler
The arrow shows that only the jig spacers have been left to allow the hull planking.
Now, my model.
The kit is CNC and nothing is like the laser perfect cut of your last Russian boat. The jig has a LOT of imperfections. Those are the ones that generate that effect clearly seen in the below picture
Do you see it better now ?
Now I will Zoom both side:
First the "defective side " and see what I am pointing with the arrow
Now the "non defective side"
Do you see now the issue ?
I will help: The right side jig is "thinner". The left side is "thicker". So the right is more against the rib "generating an arch when compared with the left side where all along the jig has the same thickness".
Try to follow the frame tips line now. It isn't easy at this time because that jig picks the brain attention. I do not believe neither that the frames are "perfectly positioned " but at least I do not see such issue. I will know , if frames are not perfect,, when I sand all that jig along the ship leaving only the spacers.
This ship is more of a scratch type than a laser cut as the Marmara, where all fitted to almost perfection (almist because nothing is perfect in life).
The below images are from this book
Look how it started and how is evolving after sanding and additions.
So, if at the end also the frames are not "perfect" , then, there are options along the building process to hide it.
We will see.
Cheers and thank you very much for the observation. It helps the log followers and myself.
No apologies please, do not write that again. For those observations is what we spend time doing these logs. It is a daily learning process.
Cheers
Daniel