RE: Up elevator action
The plane will begin to climb. As the plane climbs it will slow. The plane will continue to climb and comtinue to slow until it can do neither any longer. At which point it will enter a stall. The severity of the stall and the aircraft's responses are an unknown. There is no possible way an aircraft, at middle power settings, will continue to happily climb with up elevator until it reaches a point of equilibrium and resumes continuous level flight at a slower speed, while still maintaining the same amount of up elevator.