It's problematic using Voisin's memoirs as a source, there are so many ludicrous and self-contradictory statements there, but: "(Charles Voisin) instructed a sign painter to put in large letters the names of our clientson the empennages of their 'aeroplanes'. Our trade mark, printed belowthis emblem, was sufficiently modest in size,not to be legible on the photographs of our machines....': it was a measure to get people to buy their aircraft in the hope that any glory gained by winning prizes would be gained by them & not by Voisin Freeres. It workrd only two well: Voisin is very bitter about the reception accorded Farman.
What I can't quite figure out is what to do with the 'wheeled undercarriage' & roll control sections', which at present swamp the article and also repeat matter found in many other places.