I built a new frame and put my second power system i owned so this cost me to build only 20$ because all parts were recycled from my crashes. And i have been getting bad flight times 10-13 min of just putting it into hover with no flying around.
Motors: D2830-11 1000kv Turnigy
Props: 11-4.7 Carbon
ESC's: Q Brain 4 x 20A Brushless
Battery: Multistar 4000mah 3S
Frame: Custom quad ~760mm (over sized so if the frame turned out well i could expand to a octo with 14in props)
Flight weight being ~1550g
At the time air temp was 0°C
I retested with 3300mah 4S With an additional 100g and got even less flight time but after calculations it was as expected 88% of the 4000 mah battery so nothing new there i doubt i could take off in a 6600mah 2s configuration but that will be the next attempt.
So the question is what could i do to improve flight times and what would you guys recommend for a power system?
Here is a picture of it.
Replies
Try with two batteries in parallel, your flying time have sense for your setup, that motors aren efficient I had them in my first setup and similar flying times
Ya i need something more then 10$ motors on that i agree. Turnigy motors over all have been disappointing.This was the last time i bought anything without looking over other peoples results. That was over 2 years ago when this was my second power system i ever put together for a quad.
To enlarge your flying times without spending money you can try to lightweight your copter I measure in my first build that 100gr less=1 min added to flight time (aprox), here you can find the history of my Turnigy motors copter http://diydrones.com/forum/topics/optimizing-my-first-cuad