Question on B-25 rudders
 

Been trying to find the correct answer on this. Are the rudders skinned or fabric covered on the later models? Looks like the ailerons are fabric covered, not sure about the elevators either. I am almost at the finishing point on one rudder, so need to find out if I have to skin it, or fabric it, makes a difference on how much to sand. Plans aren't descriptive either, just shows skin for the fin, no mention of the rudder.

B 25 Rudder
 

This one looks like fabric to me...

That one does, but the one I am modeling does not, and a few others I found also look skinned and not fabric. Hard to tell though. I know early C models were all fabric covered. The plastic model I have is also fabric covered, but I want the one I am building to be as close to accurate as I can get it. Hate to sand it down for sheeting and find out should have been fabric.