I saw Charles and assumed it was the Stunt Hangar scale builder Charles (Aviojet).
Charlie Reeves is a long-time stunt flier, master builder, and expert stunt pilot:
This is one of the rare times I have seen him when he was not smiling!
He and Jim Lynch are doing stunt appearance judging:
similar comment for Jim, also an expert stunt pilot. Note that these pictures are from the thread describing the restoration of Bob Gieseke's 1968 World Championship model, which has been entrusted to Jim.
Charles/Aviaojet is neither a scale builder nor is he a pilot. He is as diametrically opposite someone like Charlie as could possibly be imagined.
Brett