those old gear were originally all molded out of the same long fiber material that the servo trays, etc are molded out of.

They were designed for the original sport shark I think, maybe 1986 or so? Anyway, a 9.5 pound plane.

Over the years he has replaced pieces one by one with the same part except cast in aluminum. After one piece was strengthened the next one breaks, it is to the point now that the whole main can be assembled from aluminum. First it was the outer arm, then the inner arm, then the trunion and finally the frame itself. all changed to aluminum one by one


But what do I know....