I have a goal to fly the arducopter higher than the current tallest structure 829.8 metres and record the flight. I intend on doing this on a calm day but expect winds at high alt. I do not know what speed to expect. Has anyone brought you copter to a high alt of this value and any learnings i can take?
that's is the receiver wire at least one of them. Props are 11X47. Not sure about reducing the descent as i need to get back before the battery dies....
I guess the key to getting higher up is to increase the ascent speed to max possible. Coming down any faster will be difficult but going up should be a breeze.
Excellent point, what values would you suggest for waypoint speeds including up down speeds?
I've been @1740m with my APM2.5 quad and battery wise it can go approx to 2,5km altitude, but i'd have to upgrade FPV antenna. I certanly wouldn't try this in urban envoirment...
that is very nice - what size battery do you use and how much was left at the end of this flight?
I have 5,8Ah 4S battery, approx 3,3Ah was used during that flight.
looking at your video you got a whole lot higher in roughly the same amount of time as me. i wonder is it you descent speed possibly - mine was in auto mode
I launched mt 3D Robotics Hexa-C copter last week up in the mountains of Virginia and conducted a high speed vertical run for what appeared to be 15-20 seconds in Stablized mode. I was able to see it the entire time and hadn't considered just how high I went until I started my decent. It took a considerable amount of time to bring it down due to not wanting it to flip on descent. I worked my throttle back from roughtly 45% to a minium of about 10% to keep the props turning and still maintaining stability. At one point the copter began to wobble and I had to ramp up RPMs to bring it back to level while descending. I strong discourage anyone not willing to accept risks of flipping and crashing your UAV by maintaining a mimium RPM on your UAV.
My Hexa was equipped with Telemetry, a 5000 maH Lipo, and Gimbal Stablized Hero 2 camera which recorded the entire run. At present due to weight increase to my factory setup, my Lipo on normal flight runs for 8-9 minutes. I did run into a issue with my Quanum Battery Telemetry monitor, I lost signal with the copter's battery somewhere at 150 meters as the copter ran up to 650 meters AGL vertical assent so I am unable to assess how many milli-ampre it took to get to that altitude. I was able to successfully bring it back down and land it, but I forgot to reconnect the battery telemetry to see how much was consumed.
Hope this helps. I have telemetry logs,KMZ file, and video I plan to share later when I get back home from work. Will post for those who are interested.
im interested - share the data!
Here is the logs and KMZ file of my flight. Unfortunately the video has been accidentally deleted! :-( At least you can view the data.