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1

Usually in modern aircraft the different system's parts are manufactured by subcontractors. There are industries like Safran (see for example the Safran aerosystem part) or aloft that are taking care of designing these parts and propose them on the market. In general airplane makers industries are assemblers, they design the frame, they define the specifics ...


6

It's pretty easy. Flexible ducting is readily available. Of course yours would twist in torsion, but it doesn't have to. It can be arranged to bend instead. The wings are held on by a big, tough horizontal spar. It's round because the wing rotates on it. It's hollow because that's strongest for weight. Thus you are guaranteed to have a big, hollow, round ...


3

This is done in the engineering world all the time, using something called a rotary seal. installing one of these in a pipe allows the ends of the pipe to rotate relative to each other without losing pressure in the pipe. Rotary seals also are used anywhere a rotating power shaft emerges from a gearbox or an engine block that has oil under pressure inside it,...


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