An undercarriage was fitted since hand-launching a greasy model of that weight in dead calm conditions was an Olympic feat not always meeting with success. After two crashes on launch out of three I figured wheels might be a good idea; however, it did not have the power to ROG from grass and so has been honorably retired. The wing has been reused - the observant will have noticed mounting points for twin motors. (The beast has had a checkered history - conceived and part-built years ago, much as shown here, the motor was removed and twin Speed 400s fitted during my initial foray into electric flight. It staggered into the air, grossly underpowered and with insufficient tail area, for a couple of long hops. The OS20 was then returned with a longer nose to take a bigger and better tank, and with an enlarged tailplane it finally achieved success in its original guise. And now it's gone back to twin electric... Do other people do this or is it just me?)
A new fuz has been built and is carried aloft on the old wing fitted with twin 130W out-runners, powered from a 3s pack of 8.8Ah. This provides much the same performance as the original OS20, i.e. sedate.