Thanks for the reference JT. Those forces seem huge, but I assume that is the force applied at the control surface, not the load on the pilot's leg? I doubt too many could bench press 300 lb with both legs, let alone one. I have seen quite puny pilots cope with practice engine failures in DC3s and rather guessed the load was no more than 180 lbs until trimmed out.
As an aside I am currently involved with a DC3 which has more powerful 1350 h.p. engines and the modification for these limited rudder travel from the original to avoid over stressing the fin or hinges.
No idea what the load on the pilot's leg would be in a B200 with no rudder boost assist, but guess it would be less that a DC3.