You are persisting in maintaining he flew in 1903. I need evidence. I can not simply believe you. What books say Pearse flew in 1903 and based on what evidence?
The books by Geoffery Rodliffe and other references. You'll actually have to do some work for yourself and find them rather than just the quantifiably poor and biased internet searches that you have proven to do.
As has been said about such things, you are entitled to your own opinions but not your own facts. Use scientific method rather than opinion for research, it'll work a lot better.