X-Plane eVTOL Ultralight Simulator

I want a fully flyable eVTOL model inside X-Plane that I can use to train future pilots of a Part 103-compliant ultralight. The aircraft has eight electric motors and is steered with two independent joysticks—one dedicated to ascent/descent plus turning, the other to forward/reverse and roll—with a hands-off hover mode in between.

The heart of the job is getting the flight dynamics right. I need the model to reflect true ultralight behaviour under the Part 103 envelope while accurately blending the thrust from all eight rotors. Control response on both sticks must feel natural and symmetrical so that student pilots can translate hours in the sim directly to the real seat.

You are free to use Plane-Maker, X-Plane’s Experimental Flight Model, custom data-refs, or a plugin written in C++/Python/XLua—whatever delivers the most faithful handling. Visual fidelity is secondary; the priority is aerodynamic realism, thrust vectoring logic, and a rock-solid hover that holds position within tight tolerances.

Deliverables
• .acf file with tuned weight, balance, propulsion, and aero parameters
• Custom control-mixing plugin (source + compiled) that maps the two-stick logic, hover hold, and any flight-protection limits
• Test scenario files and a short write-up describing the performance figures achieved versus design targets

Acceptance criteria
• Smooth transition from hover to forward flight with no surprises
• Both joysticks respond within 50 ms to input and remain decoupled as described
• Sustained hover drift