Scale model of Pratt & Whitney R2800 radial engine for rc model airplane use.
Designed for my 1:7.5 scale RC ESM F7F Tigercat.
The model can be scaled up or down to fit your model.
I recommend printing with no infill for reduced weight.
I recommend 0.2mm layers up to 23 mm height and 0.08 mm layers above 23 mm height for quick print speed, and good quality.
Two outlines is enough.