Been flying my Velox without flaps functional and it flies great, I think a lot of the dramas people have had with this plane have occured getting it to slow with flaps out and behind the power curve.... personally I just dont think this model needs to use flaps for normal sport flying so I fixed mine using straight hollow carbon shaft to replace the stock pin hinges. I have a Kingtech K80-E 8 kg (18 lb) thrust turbine installed and find it just about perfect power wise also. I am really enjoying flying this model, lots of fun