Trim and optimize simultaneously introducing an objective function

Hi there,

I have set up a 6DOF Simulink model of an aircraft. With that I want to start an automated performance analysis for trimmed flight. The trim function inside the Linear Analysis Tool (Control Design Toolbox) revealed very usefull during the first investigations. Now I want to analyse the maximum sustainable turn rate for different altitudes and velocities. This can be achieved by finding feasible operating points (trimmed flight) while optimising, i.e. maximizing the bank angle. What I learned so far by use of this trim function (findop) is that it focuses only on feasibility rather than on optimizing towards an objective function. I looked into the code of findop.m etc. but I couldn't find any hint how to introduce a custom objective function for the "optimization" with fmincon (Gradient descent with elimination).

My question is: Is it possible to introduce a custom objective function (in my case the reciprocal of the bank angle) into the trim function?

Thank you in advance!

Korbi