Any down sides? It didn't seem to approve of being ballasted, and it was tricky to land accurately.
The model was built from white foam, with a hardwood spar and 1/32nd balsa skin glassed in light weight cloth.
This planform is the same as the 2m pink foam wing and will serve as a basic layout for any future testing.
This 57" version died a death when I slapped a lipo and brushless pusher onto it. The prop sliced the aerial off and the wing snapped on impact with the ploughed field.