After I make some modifications of birds and the remote control, I was able to achieve a good result. My result can be seen in flytrex http://www.flytrex.com/mission/quadcopter-russian-bear-putin--lux-tao-66398/
I'm number two in the ranking http://www.flytrex.com/challenges/distance/phantom-2-vision-plus
My previous record I have described here http://www.phantompilots.com/viewtopic.php?f=27&t=23532
I'm number two in the ranking http://www.flytrex.com/challenges/distance/phantom-2-vision-plus
My previous record I have described here http://www.phantompilots.com/viewtopic.php?f=27&t=23532