It took me a little while to learn what most of the switches and buttons on my DX6i could do. This past weekend the Trainer switch was assigned to start the timer in a count up mode.
With my EFlite 30C 11.1V 3200 mAh battery almost 7 minutes of mostly hovering flight was achieved (no touch down at all until exhausted).
"Is that all you get?" comes the question from the group.
To that end one issue has been my conservative approach to charging the battery. Keeping a battery cycle log seemed like a good idea and there the evidence can be seen that although a few balancing charges have been made, the charge rate needs to increase. The cell values of the charge prior to this flight were: 3.96, 3.97, 3.97. The first couple of cycles saw 4.2V nominal. I seem to remember dropping the charge current to 800 mA. The heli buff at my LHS keeps his cells at the 4.2V level.
I think this battery can handle more, don't you?
Oh, did I tell everyone on the 3DR and APM hard/software teams how happy I am with the way this copter flies?
WOW! It flies like it has rails and I haven't even adjusted any of the PID settings or any other variables, just TX trim. Many times I have simply held the TX in my right hand and enjoyed watching her sit in the air. Hi-5 to all the devs. Why anyone would want another autopilot is beyond me.
So, if you read this, and you have some data, why not respond with your flight times. Once the battery is topping off better, I am sure the time will be closer to 8 minutes. Cutting weight would help on this bird but.. I won't complain about her weight if she doesn't complain about my flying. ;)
Of course if you have two batteries, half my weight (now at 3.4 lbs/1.5 kg with battery), then you will stay in the air longer.
This build is a trainer/development platform. The next build may be also based on the 3DR frame but the goal will be to cut frame weight to allow 2 batteries.
I've got the multicopter monkey on my back now...and I love it.