DJI F450/Naza tuning

[Olemil]

Well I have to break down and get some advice from the pros. I am new to the MR world for sure, been flying helis for a few years now but this is a little different. I have a stock F450 with Naza controller including the GPS unit. I am also running the DJI 10" (1038) props with a 2200mah 3s pack mounted on the top frame plated. I'm using a Futaba 8FG tx with a S-Bus rx. Trying to get this dialed in but not sure what I should be expecting. Every time I've been out with this, there's been some sort of a breeze anywhere from 3-10+mph. I guess my biggest question is how are these supposed to react in wind? Mine the way it is set seems to rock side to side (bobble?) with a gust of wind while in GPS mode. It isn't anything violent but it does rock side to side. I have everything set up and programmed as per instructions including calibrating compass (outside away from any obstacles). My current settings are as follows: I have the Basic Gain pitch and roll set up with a knob on my 8FG (running at 150%), yaw set at 110%, vertical 110%, Attitude gain 140% on both pitch and roll. Now if there is a way to tame the wind effects, which one would I adjust to take some of the bobble out? This is a new game to me like I said, seems simple on a heli, adjust the gyro until tail wags then back it off. Thanks for any help you may have and sorry for the newbie question that I'm sure has been asked 1000 times. P.S. I have a set of Graupner 10x5 props on the way if you think that will help.

 

[tugboat]

My .02$ would be to try it with no wind (early morning or evening) then see how she responds to commands, if she still oscillates the same then bring down that gain.
It just sounds like the naza fighting the wind (in gps mode)
Many opinions on props... but again my .02$ you'll love the graupners, sure they lack the punch the dji's have but they won't snap in flight and you will gain flight time because they are more efficient, also no vibration... but remember to balance them!!
Good luck, your almost there!!

 

[Olemil]

Thanks for the info, much appreciated! That's what I was wondering if this is normal for a F450 in the wind, just not sure how much it should be bobbling. It does seem to be tame when doing any maneuvers and returning to center stick, it doesn't have any violent moves when leveling off. One of my concerns is which gain would effect the side to side corrections? So the Graupners won't have as much punch at the DJI's? I figured the Graupners with a higher pitch (5"vs3.8" on the DJI 1038's) they might have to much pitch. Oh I do have a DuBro balancer so I am good there. Thanks again!!

 

[Olemil]

Thought maybe I would throw this out there and see what anyone thinks. Something in the manual that keeps haunting me about using the X2 port for S-Bus. It is on page 39 of the Naza manual. It says X2 port is to be used for Dbus (S-bus) connection OR gain tuning OR for IOC switch. So my thoughts, are you supposed to only use the X2 port for one of these functions or can you use it for connecting your S-bus rx along with another option such as gain tuning? Just wondering if the signal from the S-Bus is disrupting the basic gain settings causing my bobbles. Is this a possibility or can you use the X2 port on the Naza for more than one function? Thanks.

 

[tugboat]

Thanks for the info, much appreciated! That's what I was wondering if this is normal for a F450 in the wind, just not sure how much it should be bobbling. It does seem to be tame when doing any maneuvers and returning to center stick, it doesn't have any violent moves when leveling off. One of my concerns is which gain would effect the side to side corrections? So the Graupners won't have as much punch at the DJI's? I figured the Graupners with a higher pitch (5"vs3.8" on the DJI 1038's) they might have to much pitch. Oh I do have a DuBro balancer so I am good there. Thanks again!!

Your welcome!! it is the gain for roll, take a look at page 19 in the naza manual... also check out Dennis Baldwins you tube channel he has some good vids on tuning.
Happy Flying!