I decided that 17 min flight with this craft was not long enough, and to prove the hubsan props are more efficient than the ladybird I decided to give it another go. I also give a history of how I got into the hobby and my experience. the full flight time was about 22mins 44 just missing out on 23! 5 mins more than with the ladybird props. the long flight times giving us good data here to show the actual difference in efficiancy