You're correct PPGMD.
In the May 2003 issue of Flying
magazine there's a great 8 page article (with excellent photos) called "The Wright Experience" that's all about building the flyable, authentic reproduction of the 1903 Wright Flyer.
The airplane that tried to re-create the first powered flight at Kitty Hawk, North Carolina last December.
Here's an excerpt from that article ........
"The restored 1903 Wright Flyer hangs in the Smithonian's National Air & Space Museum in Washington and, as part of a 1985 conservation effort, the museum made detailed blueprints of the airplane. There are also drawings made by Orville Wright and Louis Christman in 1928, and drawings made by the Science Museum of London while the plane was on display there in the 1930s and '40s."
"the only way to build the same plane that flew on December 17, 1903 - and to have any realistic assurance that the reproduction would actually fly - was to go back and retrace all of the Wright brothers' developmental steps, using letters, documents and other original source material."