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I have prepared the wing spars and the right hand engine frames and bulkheads, to see how Lex has designed the construction of this section of the Comet. In the first picture, I felt, that the bottom central spar needs to slip between the central keel part B24a and the underside of the horizontal fuselage bulkhead part B24, so I cut out an opening with the thickness of the cardboard stiffener I am using in this case. The two central spars are sandwiched under and over part B24, leaving a gap of the same cardboard thickness.
Next, in the 4 parts B27 and 28 a and b respectively, I cut out within the red square a rectangle with the size of three thicknesses of the cardboard stiffener. These four frames slide over the two central spars . leaving exactly a gap in which the two horizontal bulkheads parts B 45 and B46 can be slided between B27a and b for the inboard engine and B28a and b for the outboard engine.
Finally, the closing bulkheads in front and back, parts B43 and 44, form the endplates and thus boxes are formed, over which the engine skins can be applied.
I hope this makes sense, but also see the pics.
As Lex mentioned in the Instructions, all frames and bulkheads need to be cut somewhat smaller, via the purple lines, to accomodate for the cardboard stiffener thisckness. In the pictures, you can see, that I have not so done yet.
When everything fits, I will construct the engines/wing group and the fuselage central keel as a separate unit, which can be assembled into the fuselage at the end, so that I will be able to make the correct anhedral.
As I said earlier, this design is clever, and makes a modellers delight.
Regards.
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