Pics of that to follow.
When measured careffully, the engine bed is really 1-3/4" high on the outside, including glass thickness. I tore up index cards to step the flat away from the tabbing on the engine bed to get the 1-3/4" measurement.
Note the 8" box stringers are offset from the adjacent stringer by 1-1.5". I neglected to measure that.
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