Model plane
thingiverse
At the original link http://www.3dvia.com/models/4AAAAE4052647648/dualengine, this 3D model can be found. To make printing easier, I leveled it and used a raft and support. It's suggested to try printing directly without any modifications to see if the support removal is more straightforward.
Download Model from thingiverse
With this file you will be able to print Model plane with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Model plane.