Old scanned image from my own days of building and flying.
One of several WIK SALTOs I built. A real handful and definitely not for beginners, but for the advanced RCer, one of the most spectacular aerobatic gliders ever! Party trick was to take it to a slope soaring site ... work some serious altitude and then, when nobody was paying attention, fly it downwind to behind the ridge, turn it and dive it almost vertically back out over the ridge just above head height ... the wings would be screaming as would several of the spectators, and then feed in three consecutive flick rolls! Lovely stuff.