Menno was kind to share the difficulties he experienced at this stage, and I had exactly the same problems but thanks to the warning I had the necessary remedies in hand to overcome the problem. Now curing.
The cured first part of the flange:
And a detail from inside, not yet trimmed:
Then, rather than finishing the inside layers of tape, I moved on to finish the outside. The F-22 comes with a lot of nice features like integrated chainplates and rudder gudgeons which I really like, and I would like to do as much as possible that way. Hence, I make the groove for the lexan doorway panels an integrated part of the construction. I started out making a mould to sit in place for the lexan.
It was temporarily fixed to the opening from the inside:
Then I made a flange outside of this mould. It will be trimmed back to make a 1 cm deep groove around the opening to receive the doorway panels. I will drill drain holes in the bottom part.