Dear Robert,

The real beauty of the Pejsa model is that you can model your own dragfunction, tailored to your own data.

Do I understand it correctly that your Pejsa function is fixed to the retardation coefficient rate of 0.5?

If that is the case, it is not possible to model your own drag function any more.

Would it be possible to modify the retardation coefficient rate in Bfx, and if not, would it be possible to incorporate that in the code? I would be much appreciated if you could.

Best regards,

AL