Some years ago I made a 1/9 scale model of the DH2, with a geared speed 400 power. She flew well and was featured as a plan in Tony Dowdeswells Flying Scale Models for Jan/Feb 2001, then as a Turnkey laser-cut kit of parts, then as a build diary by Frank von Jaershky (the Hun in the Sun) on RC Groups at http://www.rcgroups.com/forums/showthread.php?t=244004. His model is still flying and we are in regular correspondence. Rekitter also had a build thread at http://www.rcgroups.com/forums/showthread.php?t=332501&highlight=DH+2 and there are quite a few threads on various aspects of the model. The plan is still available from FSM, and I have my own hand-drawn originals which are modified to show the aileron option
Mine has hung in the ceiling of my model room for some time, until gradually I felt it needed a bit of TLC and some wind in its wires.