ChristiaanJ
M2dude will have to confirm that the 'lateral stiffeners' he is thinking of are indeed the very roughly 2' long and 5" strips at the location of each spar just outboard of the engine, that are very clearly visible on Coffin Dodger's photo of 'AA.
Yippeeeee we have a winner. Coffin Dodgers photo of my poor old G-BOAA shows the stiffeners perfectly.
(I was starting to think that I had gone even more bonkers than usual, and was imagining the things
).
Best regards to all
Dude
