Combine rudders with vector thrusting and skid steering

Hi,

We are building a experimental 1:1 scale sail boat and Ardupilot Boat will control it. The boat has the following characteristics.

Boat hull: Catamaran
Sail: A rotatable fixed wing
Rudders: Two, but steering is combined
Thrusters: Two, they can rotate 180 degrees and angle & thrust control is separately

I’ve been researching the docs to get the correct parameters. We have some options regarding steering, and I would like to discuss the options here.

In Auto/Loiter/RTL/AUTO mode, the steering should be done with the rudders. When speed drops below SAIL_WNDSPD_MIN the throttle/thrusters are used to assist. Then we have multiple options to steer;

  • Rudders
  • Vector thrusting
  • Skid steering

How do we set Ardupilot to choose the desired steering in these modes?

Secondly, in Manual mode, is there a way to toggle between the desired steering options?

Kind regards,
Bastiaan

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