RE: U-Can-Do .40 stab failure
Hi FH Huber;
Apparently, many fliers successfully put .91 4-str on .40 size planes including the fragile U-C-Do. Last weekend there were two Pacific Aeromodel P-51 .40 size at our field; both ownmers told me of people putting 1.20 4-str on them and racing without failure. I wouldn't say anyone deserves to break their plane for experimenting.
Bob