This is a medium-range hook shape for recreational boomerang throwing. Throw parallel to the ground or very slightly upwards with a bit of layover. My first 85% percent print flew very well with a nice 40 meter range.

If the boomerang comes in too low at the end, bend the leading wing slightly upwards so it is a millimeter or so above the surface when the boomerang lies flat on a table (and vice versa if it flies too high).