Not quite. The observation decks are partially cantilevered out past the flight deck's inner walls. The clearance between the outer and inner hull looks to be about half the width of the observation galleries.
Yeah, I think referencing the observation deck left too much room for interpretation as the illustration doesn't really match what was filmed.
However, the alcoves below would be subject to less interpretation as it is almost vertical with the inner wall and outer hull.
So to update, you'd have a minimum clearance of the width of the alcoves and the ceiling of the observation decks overlooking the flight deck (whichever is greater).

Last edited: