Hi all. I am working on my first WW1 kit the 1/4 BUSA SOPWITH PUP and I have a couple questions about the top wing senter section.

1-- The top of the front end of the two W4 ribs are lower than the wrest of the ribs at the front of the center section and there is an airfoil shape to the bottom of the W4 rib when the rest of the ribs are flat . I can see no reason for this in the instructions and the W4 ribs fit well otherwise so is this just a kit flaw or am I missing somthing -( highly possible ).

2-- There is no mention at all about mounting the clear window into the top center section. Does anyone have a good picture of this section , in the bones if possible.

If anyone would like to comment about other things to look for with this build I would appreciate it.

Thanks P.J