as u see this yellow lines, thys show how rounded is skin around cfu.
UV map show how skins/texture is fit to 3d model. In b17 on wings is too short. Markings like "L" u have placed as ovject overlayed main 3d model. and textures belong to other file texture /as on som airplanes, markings/. Som spaces are not texturized, thats depends from what kinde of texture UV map was used to cover aircraft surfaces.
Sorry my english is too poor to explain all this technical terms correct
yes its yak
ramzey