I would check on the order for attaching of the flaps. It looks like you could put them inversely. Therefore there are the tabs ( blue ) that should fit the slots( blue ) there. The two tabs ( yellow ) are to glue to them the outer flap with the larger tab( blue ) and not marked smaller one.
As far as I have read, no war-time F4U-1, -1A, -2, -1C or -1D had a step. It was introduced on the -4 which did see limited wartime service. I'm filling mine in and flaps down
Looks like the late war FG-1D, had them. Post war photos, but all FG-1D's were built during the war. Original steps were open, later steps were covered with spring door.
Thanks for that. Looking under the belly, there is no cutout step in the flap.
Geo, I know little of the minutia of these things that fly. Certainly would not have caught that!
I will be filling in mine as well. And did find this one! It does show more detail that I need as well.
Rolling along on the flappy things.
You can see what I have removed (white)
To be replaced to align with wing pieces.
Now both sides have been fitted in the wing. Not attached.
Yellow shows where matching actuator pieces will be attached!
Oh, and step filled with styrene and plastic putty, smoothed.
I'm pretty happy with with these results so far!!!!
So here are the actuator covers, replaced, now shaped for the starboard side.
Starboard flaps in place and shaped, port side to the left showing the blocks of styrene.
Too easy. I'll do the others tomorrow. Busy day an I am beat!