25% better flight time with motor change only

I built a qav500 quad, naza-m, 40a speed controllers, 2X3s 2200mah batt. i was getting horrible flight time with (the other guys motor) different motors. Now I am able to get 15 min flight time quad fully loaded with a gimble and camera. amazing stability

these are the motors that I used to power my quad with such good flight time

http://www.gobrushless.com/shop/index.php?app=ccp0&ns=catshow&ref=MDANmotors

look it up, call the guy and see what im talking about. amazing customer service

the motors i got he built for me because they were not on his web site.. oh and the specs he has on his motors seem impossible but im now a believer

i will post pics upon request