DAYTON, Ohio—Boeing has started the T-X flight test program for the engineering, manufacturing and development (EMD) program with the first two modified, company-funded prototypes, while the final version of the EMD aircraft remain in detailed design.  The early test points collected by the first two T-X aircraft, which have resumed flying after a months-long hiatus, are possible because there are no outer mold line changes between Boeing’s company-funded prototypes and the ...


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