e_lm_70 wrote:Yes, very nice an price position hold ... actually wind or no wind ... if the GPS is giving good data ... it does not really effect much the wind on position hold ... a weak GPS will also cause unprecise GPS PH without any wind at all.
But ... do you call this a windy day ?
This is a windy day for me......
With the copter always at 30deg inclination fighting the wind
![Uber Geek :ugeek:](./images/smilies/icon_e_ugeek.gif)
Yes, that's windy on that field. I do wonder, however, that in an open field with steady wind but no turbulence, the craft would have different response or it would demand different ability from the craft. Thus expose different tuning weaknesses.
Turbulence is when you get gusts of varying strengths, coming from different 3D directions (vs. a steady strength and direction) at different durations. In a passenger airplane, that's when you get tossed around. Near ground level, you can get temporary cyclonic action around structures, twirling winds, eddy currents. The quad would bounce around more, if not tuned optimally. I guess you can call it "resonance frequency of response" that varies with different PID combinations. It's now a more dynamic 4-dimension problem, entering the Time dimension.
What I should do in a day like that and at the same turbulent location, is to bring out my F450 on Naza v2 and see how well it can respond to the same condition.
This HKiri fw, if it can deal with turbulence more effectively at 32-bit (more MIPS) than another FC solution, coupled with better GPS precision and refresh rates, can set itself at a more superior level like a much more expensive FC above the Naza class of controllers.