This model is a cartoonized version of the Spacek SD-1 Minisport 3D model airplane.
It is modeled in ZBrush and then imported into 3ds Max and optimized accordingly. The files of the two programs are attached and can be used easily.
Also, if you want to print the model in 3D, you can use the .stl inside the files. Repairs and corrections were made for 3D printing. (You can see the preview image of 3d printing of the model in photos)
Shared formats; -max -zpr -obj -stl -fbx -3ds
Please do not hesitate to contact me if anything goes wrong.
Healthy days.