Hello, I’m trying to do a new takeoff mode of a plane, using a tether and perform a circular takeoff. The tether would be connected between the center of a circle to a wing of the plane. Where I can add the external force (the tether force) to the plane and simulate my takeoff?
If you are using Jsbsim as your base physics model then you could add the force in the configuration file for your aircraft. Jsbsim is good with physical models as such. I am not sure how to make it a point force on the wing though.
Plane::calculate_forces
Note that Plane has a few options to simulate different takeoff mechanisms already: https://github.com/ardupilot/ardupilot/blob/master/libraries/SITL/SIM_Plane.cpp#L62