Nicolas, you may be right. Since I started my U-711, I've put in about 18 months of work and still haven't even got the hull halves glued together. But as you can tell from my description of the 37mm being around 70 pcs now, there's a lot of detail. I try to make everything move as in the real ones, so the shiled folds, the gun rotates and elevates. I've got most of the hatches on my boat opening, including the torpedo doors and the deck hatches, and all the antennas and scopes raise, lower and rotate. It takes a while but it can be done.