
I've got a question about the two separate pieces, at the bottom of that picture. They're shown fitted on a 1/35 here:

And here they are shown at 1/16 scale, fitted to a frame of sorts:

What was the purpose of doubling up the mesh over the forward engine vents? How common was this? Were they always fitted to a frame like in the second picture?
I'm building a very-late-war, last-ditch-defense type of KT and am trying to decide whether to fit these larger pieces yes or no. I'd have to scratch build a frame but that's not hard.