interesting, but bad, plane made as a Frankenstein project by General Motors.
The engine was kind of cool though, and was suppose to by very heavily armed.
model in full dimensions in blender 2.80 and exported from blender 2.79b* at 1/100 for the .stl file
scale down to 35% in the slicer.
I've had issues exporting .stl's from 2.80 for Cura; 2.79b and 2.80 export the same mesh to different file sizes, too. So I export the mesh from 2.79b for consistency's sake.
as usual, the d6 is 15mm for reference