Hoverfly What is going on?

[periquira]

Ok, now I am convinced that there are no problems on my frame.

PH definitly does not work, it is completly useless.
I say this because my friend bought one naza and he lend it to me.
I flew with it today and it was perfect.
Then I switched back to hf and same problems appeared.

EVERYTHING IS WELL CALIBRATED.
It holds the course and on setup the magnetometer is in accordance to my instruments.
The artifical horizon is matching what it should match.
All gains are a little bit bellow when the quad shakes.
I did the temp cal and,it holds altitude very well.

I noticed that ph is very good in DEAD wind.
If I turn al or ph in a weak wind it turns the face against the wind up and never comes back.
If al or ph is turned in dead wind and then it starts blowing, al keeps the quaf stabilized and ph keeps stabilized but drifts slowly in the direction of the wind.
Please, I cant wait anymore. I contacted hf by phone yesterday, but I am tired of this.

I need a definite solution NOW

I dont want to hear the 'solutions' proposed by others users. I want to hear from Hfteam!

 

[Photronix]

Can you tell us what Firmware you are using and take a picture of your setup. Prefereably a closeup of the PRO/GPS showing surrounding electronics and where the GPS antenna is mounted.

 

[Photronix]

I need info to help you.

 

[periquira]

Firmware is .802 on both pro and gps.
Let me remind you that the problem (rising the side that is facing the wind when I turn on AL or PH) happens not when these functions are already ON, but when I turn them on in a windy condition. If I turn on in calm wind and then it starts to blow, I have no problem, only a slow drift and sometimes the quad makes a circle centered where PH was activated.


View attachment 7818View attachment 7819View attachment 7820View attachment 7821

 

[Droider]

You may find that the magnetic field from the batteries are causing you problems being so close to the boards. I aint a HF user but if that was MK you would be having all kinds of problems.

How flexible is that wooden plate. are the arms ridged with no flex across the body?

DAve

 

[periquira]

I noticed this behavior (to rise the side that faces the wind) last year when using only hfpro and I engaged AL, but at that time I did not need that function. Moreover, it does not happen when the wind starts blowing and AL or PH is ALREADY activated. So, it can not be related to inteference.

The frame is rocksolid because it was built to act like a beam. So, its height gives a very good rigidity matrix on the equation of the elastic line.

 

[periquira]

I flew today again.
My impression: it still rises the side that faces the wind if I turn AL or PH when wind is blowing, BUT I also noticed that if these functions are turned on without wind and it starts to blow my command to go in the direction of the wind is dramatically reduced, and, sometimes, even with the stick fully pushed, my quad goes back and if I release the stick, well, it almost crash.


Another note is that this flight took place in a big field. Consequently, I left the quad stabilize by it self when I turned on the PH with wind. It scared me, but 20 meters from the point where it was turned on, quad started to came back. Then it hovered with a small drift (but clearly) and did not came back again.


I will try to film the next flight. I am almost sure that I will move to dji, but I need to try to save this money...
Hoverfly seems to be a good FC, but it does not handle the minimun wind. I already saw videos of good flights, but it usually shows slow drifts, or pilot intervention and for fpv I must have almost 100% of certain that I can trust on my FC.

 

[periquira]

Hf, now you have the info. Where is my answer?

 

[StormRU]

if you do not need a smooth platform (for video) while using props 13 or above, go for naza + GPS.
For quad + FPV, Naza+GPS is overkill where HFP+GPS is a waste of time on testing, tuning, etc.
I have both, so I can compare. HFP does a good job when you have a large frame and big props. All the rest naza wins hands down.
My HF GPS board stopped working for no reason. The LED is always RED. I don't even want to ask HF for solutions because they never have it. This is only my experience. Yours may be different. Period.

 

[PaNt]

if you do not need a smooth platform (for video) while using props 13 or above, go for naza + GPS.
For quad + FPV, Naza+GPS is overkill where HFP+GPS is a waste of time on testing, tuning, etc.
I have both, so I can compare. HFP does a good job when you have a large frame and big props. All the rest naza wins hands down.
My HF GPS board stopped working for no reason. The LED is always RED. I don't even want to ask HF for solutions because they never have it. This is only my experience. Yours may be different. Period.

Generally i dont trust GPS...! After i registered to this forum i always see problems and crashes because of GPS>..!

I have seen 3-4 crashed because of the nazxa GPS..!
When yours stopped you were flying??!

 

[periquira]

But these guys that crashed with Naza flew ok and the other that did not crash are flying ok.
On the other hand, hfGPS never works, only on HF staff videos or in a dead wind situation or with the pilot's care.....

 

[PaNt]

But these guys that crashed with Naza flew ok and the other that did not crash are flying ok.
On the other hand, hfGPS never works, only on HF staff videos or in a dead wind situation or with the pilot's care.....

I dont know about the HF gps.. what i know is that the HF pro is great for AP AV..!
THen if i like GPS or whatever i might go with DJI ..! But AP AV and GPS two different things..!

 

[Bartman]

i can't relate to the frame size comments....i've got a non-symmetrical coaxial quad and it flies really well with the HFP board.

with any GPS, there is a certain amount of skill involved in having the helicopter stay fixed over one spot. with MK, flipping the switch and expecting the heli to find that spot on its own in a breeze isn't realistic. it takes a certain amount of assistance to get the heli to settle into the spot where PH was activated. the HF GPS seems to need the same little bit of assistance.

 

[hoverben]

periquira, I have pointed Al back to this thread for follow-up. In the meantime, you may want to try the new firmware (be sure to load it to both the PRO and GPS), as there are several improvements to Auto-Level and GPS functions.

 

[periquira]

I will try it asasp, probably tomorrow and than I give you the feedback.

 

[Photronix]

Try the new firmware and see if that resolves the problem. We test the GPS on a variety of platforms on a daily basis and it works fairly well in all conditions. By "fairly" I mean it does not work as well as we would like it to but some of this is because of the limitations of commercial GPS. We are continually working to get the best performance we can. I have tested along side MK and the performance is almost exactly the same. However, there are some more complex algorithms we are testing in the next couple of weeks that may improve the GPS performance beyond the MK.

 

[periquira]

I flew today and it seems to be much better.
AL can now be engaged with wind and the side that faces the wind does not rise.
I can go against the wind with AL without loss of command (before, if the wind were strong it had no command).
I need to make more flights to confirm these impressions.

BUT it is not a good product yet.
Saying that PH is a function of hfgps is a lie.
It should be called a "let's make the drif of AL slower" but not "let's hold it near a specific point". It definitly does not work and SHOULD NOT BEING SOLD!!!!!

How much time it will take to release a firmware that works with wind in PH?

 

[Photronix]

So whey you say it doesn't hold what do you mean exactly. Let's say you have PH activated and its windy. Do you mean that it continues to move with the wind? It is natural for the craft to roll or pitch into the wind and the holding point to move over but it shouldn't completely loose hold. Do you try to use the ailer/Elev to conteract the movement? Moving this stick disengages PH and puts it into AL so that you can slew the PH. Also did you update firmware on both the PRO and GPS?

 

[periquira]

I have the same firmware on both.
I left the sticks released as long as possible (otherwise I would crash on the trees - something like 15 meters away).
At this distance I consider that the center point was forgotten....

I will try to recalibrate the trims and see what happens.

 

[Photronix]

somethings wrong. We test almost always in wind because our test field is almost never calm. Especially this time of year.