I have just setup a new quadcopter using the Tarot Iron Man 650 Carbon Fiber Quadcopter Frame. I have also added a gimbal.
The quadcopter howers at a PWM of about 750. This is the max recommended per the arducopter instructions. I set the THR_Mid option to 750. Right now it hovers at about 70% throttle.
What can i do to give it more power as i am assuming under wind/ in missions it will be underpowered and not able to hold altitude.
These are all the specs of the quad:
Props 12* 4.5 " Carbon Fibre
ESC's 20 Amp 3dr
Battery 3s 5000mah 30c
I have a 650 too, "underpowered" too, 3s too http://diydrones.com/forum/topics/my-second-cuad-a-tarot-650
move to 4s it's a good recomendation but I didn't do it because of FPV, planes, etc. to have all standarize in asumption that isn't the optimus;
my experience: I fly at the begining at 70% (max recomended) but, in hard wind, if trottle goes to 100% I return and land, then I change props and throttle lower to 60 % and it's flying there now, I'm going to try to loose some weight to have a better performance.
You call underpowered because you have little motors or for your mid throttle? my experience is that I need bigger props for 3s batts than common recomendations but obiously if your motors admit them.
Save the 3s setup for a smaller quad. You'll need to move to 4s and lower kv for this one.
Yes. For example, my Tarot 680pro hex is 4s on 690kv with hq 12x4.5 multirotor props. With Tarot gimbal, gopro, and a 6600mah battery it hovers at 40-45% throttle.
It obviously needs more power and I have found moving to a 4S battery in these cases helps.