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Well, I disassembled everything again, and while inspecting the motors, I noticed that one of them was missing a C-clip. Put it back, tested it with the APM and I was able to hover without modifying the PID's. But I wanted to confirm if the problem was the HF Sport, so, put it back to the quad...

Well... I just mounted the APM with the same components I have been using with the HF Sport, and it hovers, it won't yaw to the left. I will re-build my old frame with the HF Sport to double check if there is something wrong with it. But until now, it all looks like the HF Sport died while on...

@Aerovideo, right, on that last flight, the battery could have been near to get a bit low, but still, the low voltage alarm wasn't emitting any sound or showing red LED's or anything. Takes about 15 min to get a 5300mAh to low voltages. Just for safety I fly each battery for 12min. But, I have...

@IrisAerial, correct, after a few ones. That day I used 2 5300mAh gens ace batteries and 1 5000mAh Turnigy. @S11D336B, I'm not sure about the exact weight to thrust ratio, but it weights around 1300+ grams with the battery on and I'm using 10x4.5 props on 880Kv RCTimer motors with 3S...

Hello, The other day I was flying my quad and after 40 minutes, it started to act weird and crashed. Good thing it was about 1/2m high :D It started to yaw to the left out of nothing and I haven't been able to find the root cause. I checked the ESC calibration, all 4 ESC's looked fine. I...

Hi I have been learning to fly my quad with the AP firmware and decided to give it a try at the Expert mode. I connected the HFS to both of my PC's and I'm not sure what's going on, but I have been unable to update the firmware of my Sport board. It looks like the update client site is down...

Hello I damaged half of one of the antennas of my receiver. Looks like these are coaxial antennas. Is there any DIY antenna I could make instead of buying antennas? Or else, my quad will be grounded for a month :P Thanks

Furtaba 7C here!