The Wright brothers bought french engines Bariquand & Marre to power the planes they finally flew in front of credible witnesses starting with Aug. 8, 1908
The articles, "
Aviation in US. Seven french engines for the Wright brothers, L'Aérophile, Apr. 1, 1908, pag. 127" (see:
L'Aérophile (Paris) ) which says that the french company "Barriquaud-Mare" had just delivered seven 40 HP Antoinette like plane engines to the Wright brothers and "
Progress of the Wright airplane experiments", Scientific American, May 23, 1908 (see:
Progress of the Wright Aeroplane Experiments [Scientific American, 1908] | Library of Congress ) that also talks about french engines, demonstrate, both of them, that the brothers needed in May 1908 (at Kitty Hawk in strong headwinds) far more powerful engines for far less spectacular flights than the ones allegedly performed in 1905 (atHuffman Prairie, over a flat pasture, without significant winds).
Also on Aug. 8, 1908, the Wright brothers using same french engines flew only 1 min and 45 sec in France, far from the claimed record 24.5 miles (39.4 km), 38 minutes flight in Dayton in 1905 when a considerable weaker engine was used. These brothers have simply no credibility and only their officially witness flights can be trusted. The rest is their own fiction.