A question on a different forum sparked a contradiction in spelling and origins for the well-known Frise ailerons. On one side they are contributed to L.G. Frise, British designer for Bristol. On the other side there's an article that attributes them to a German designer, Mr. Friese. A search on Google turned up results for both spelling options, but only references to L.G. Frise were found, none for the German designer (apart from the article mentioned above, which can be found here:
Aileron article on FAA site (notice that the website address could perhaps indicate a source of some sort of authority)
Google also turned up a third spelling option: Frieze ailerons!
So who knows what the true origins of the Frise aileron are? And where does the mysterious German come from? Are there perhaps two different aileron modifications, one from Mr. Frise and the other from Mr. Friese?