How many watts per lbs (or kilo) should a scale motor glider have to look realistic in the air? 25W per lbs? It is a DAW Ka6E I plan to power :-)! Approx. 3 meter span. Just read a review of the Graupner Katana motor glider and the reviewer wrote that the roll before lift off was some 70 yards!! To me that sounds massive, but is it? I've seen jey models take off in far less! Tord, Sweden -- If reply difficulties - use [EMAIL PROTECTED] Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]