From X-Plane SDK

Example SDK 2.0 source code for Delphi

These examples show how to use the new 2.00 Functions.

• Delphi Source code: SDK200Tests_dpr.zip
  

This code draws a custom X-Plane OBJ (3-d model); you will need to add your own OBJ and change the code to reflect this.
Copy your OBJ to the XPlane V9 application directory.

NOTE
You will need OpenGL for Delphi to use the map test in this example.
If you don't have it then just remove any OpenGL code from the example.