In forward flight, the lift vector is reduced by the angle of the TH. Normally, the TH would just add more thrust to all rotors to maintain altitude. Since you are already at full power going forward, there is no reserve power to provide additional lift to maintain altitude. I would expect the TH to loose altitude in that situation.
No wooden dock with wooden supports. Very small dock no wiring of any sort or metal on it.
Well that certainly indicates things are not right, usually that compass calibration is off / needs redoing or that the right stick on the controller might be adding input by not returning properly to center position. The latter is usually the case if you are getting unwanted drift as well. Losing height can be a symptom of an accelerometer than needs calibration too, although if you max out the speed and power, of course it can't retain its original height for the reasons mentioned above...
Great video. I have done all the calibrations before but i always had the controller and my phone rite next to me as i was doing the compass. If i ever get mine fixed or get a new one ill folllow the advice in the video.
Don't let that off the hook so easily
My hardware monitor looked fine, but one day after quite a lot of drift at landing I checked again for a much longer period of time, using the Channel settings rather than the Hardware Monitor, and that revealed that indeed, my right stick wasn't always returning to exactly center. Somewhat counter-intuitively, in my case, the actual act of testing it for a full 10 minutes with a lot of extreme movement seemed to fix it on its own, and I haven't had the problem since. But definitely investigate, and get that sorted - you can't be confident in a craft that doesn't do exactly what you tell it...
