In context of the Buffalo accident we had a discussion of basic aerodynamics on elevators.
It is widely accepted that "modern" aircraft have a negative lift produced by the elevator.
Question: What does modern mean? Which aircraft are producing negative lift on the elevator?
I stood under the impression that high performance gliders produce also positive lift, so to get a better total lift.
The same rational I applied for airliners with trim tanks in the elevator: To avoid negative lift, they use to equalize the trim by weight and not by negative lift.
True, not? Any list of aircraft that produce what amount of total lift on the elevator on a stabilized horizontal flight in cruise?
Thanks to the aerodynamic wizzards out there
Dani