I have been working on a concept for some time, along the lines of the Horten wing. I have a set of GWS 75 and ten cell pack. My D-WAV-II “D" for Ductlings series is approx 22oz. 30"wing span. I’m afraid it will not take off. My knowledge of duct fans is limited. I am curious about brushless and Li-ion battery technology; could this be the direction for me?

A 30oz. thrust would probably do the trick. What is out there that might fit the bill?