Re comments on buoyancy: My Jodel was successfully ditched by a previous owner and floated well, photos show it sitting up nicely in the water (it was recovered and restored). I would attribute this to the large hollow spar. Of course there are drain holes in the spar, but these are all (as far as I know) on the underside. I'm not saying it wouldnt sink eventually, but you do have a good chance of sitting in/on it for a while, much better than a metal airframe where the only buoyancy may be from whatever space in the fuel tanks.