I'm getting conflicted answers on the below setup, and was wondering if someone could help me once and for all. My setup goes like this: SK450 frame, NTM 2826 1000kv motors (9x4.7 props amp draw of around 12A), naza m V2 w/gps, 9x4.7 or 8045 props, Frsky 2.4ghz Rx and a 2200 3S 25C nano tech battery. From what i see online, people are telling me the following is the way to calculate flight time: 2.2 / (total amp draw of motors 48) * 60 = how long in minutes, although that comes out to like minutes. I see people with this exact setup and exact battery with a heavier metal frame saying they get 7-8 minutes. Can someone please help with the amount of time I think i would get? i dont have the quad built yet, but am looking to leverage all the 2200mAh lipos i have, rather than having to buy new ones :( I'm good with 7-8 min flight times, but 2 min would be ridiculous :) Any help someone can give would be totally awesome!!! Just looking for some logic and estimates of what i can "really" expect. Thanks guys!!!!