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HomeAircraftHelicopterAerial Photography and Video › Helicommand Profi( EDIT: It works!)
02-08-2008 06:22 PM  10 years agoPost 81
trackhead

rrKey Veteran

utah

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So in moderate speed forward flight, if a wind gust comes, it will 'help' keep the heli at a similar elevation?

I'm interested in it's ability to react to wind gusts during slow and moderate speeds of forward flight.

Thanks.

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02-08-2008 07:38 PM  10 years agoPost 82
rerazor

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Mich.

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Yes, damping setting for altitude hold will compensate more for "disturbance". And like the HC3# version you have gain on your TX slider for how much altitude hold you want. It is stated in the manual that neither altitude hold setting is recommended for fast forward flight. I think you would have no problem dialing it in for your video usage.

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02-13-2008 02:28 AM  10 years agoPost 83
rroback

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Irvine (UCI), Ca

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As requested by some people, I tested the profi with the internal gyro, using a 9254. I'm always a little worried testing something new on the tail, but it worked fine, and held steady. even more exciting is the fact that the forward movement when I did a piro seemed to be gone. I also raised the gain a little too high on the position hold, but other then that, this keeps getting better. I also got the profi software to work on my macbook pro, using parallels, running xp, so I can test stuff at the field, finally. I only got one flight, as the sun was setting, but I think I'm about ready to shoot a video of the heli for you all to see. The heli wiring looks a lot nicer with just the profi, rx, arizona regulator... and without the gy611.

Rhett..... I can't fly, but the Profi sure can.

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03-02-2008 05:48 AM  10 years agoPost 84
rroback

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Irvine (UCI), Ca

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the profi is working great:

http://www.rhettroback.com/movies/maxiprofi1.mov
http://www.rhettroback.com/movies/maxiprofi2.mov

I've still got a little adjusting on the tail gyro, but I just have to raise the gain a little. If anyone has any more questions, ask away! I'm going to go out tomorrow and try and shoot a solo-panorama. I've done a few panos with a cameraman, but none solo, but this unit should make it easy!

Rhett..... I can't fly, but the Profi sure can.

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03-02-2008 02:10 PM  10 years agoPost 85
trackhead

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utah

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Thanks for taking the time to post that. Impressive indeed.

So Position Hold obviously works at higher altitudes that the HCa?

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03-02-2008 02:23 PM  10 years agoPost 86
rerazor

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Mich.

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Much higher than the HC3A. Depending on environment up to 90ft.

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03-02-2008 06:54 PM  10 years agoPost 87
rroback

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Irvine (UCI), Ca

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It seems to work even higher then that, although at a certain stage, it will use the gyro's instead of optics. I've had the heli as high as I could go, and it still did a decent job of locking position, it just drifted a slight bit more. Either way, the unit was flying better then I could at that altitude. The rigid/3a can do 3m tops, the profi can do 30m (depending on surface)

Rhett..... I can't fly, but the Profi sure can.

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03-29-2008 03:48 PM  10 years agoPost 88
daytonabeach

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Oslo, Norway

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How high do you think you have had it so far?
Would you use VR googles and live view for greater distances?

Do you know what will happen if the sensor hose gets turbulence regarding placement of the yellowball?

And last, when the gps unit will come out, doesnt that mean that it theoretically will lock in all possible axes, and basically keep the position in a "ball" sligthly bigger than the heli diameter itself regardless of the wind strength?

Never argue with an idiot, he'll drag you down to his level and beat you with experience...

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05-21-2008 04:18 AM  10 years agoPost 89
keithm

rrApprentice

Ocala, FL

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Profi setup advice requested
Want to be sure this thread stays alive!

I'm going to be using a Profi on my MJ2 to replace the A2000i for AP work. I don't have the unit in hand yet, but have spent quite a bit of time with the manual. (The scary part is I think I'm beginning to understand it) I have an XP9303H and the radio portion of the setup seems straight forward. Since I don't have access to the Profi software yet, I have a few questions for those who have installed the Profi on an MJ2.

1. Regarding the gain settings for Horizontal and Position modes. Can anyone provide suggested settings that have worked well on an MJ2? I prefer to adjust the gain using the PC interface to the Profi rather than the transmitter.

2. Same question with regard to the "H-Pilot" channel.

3. Can anyone explain the "forward freewheel" function and if it has any value for AP work?

4. The XP9303 is not the ideal transmitter as it has no programmable momentary contact or push button switches as should be used for the Automatic trim function. I have programmed a regular switch that will have to be turn on and then off. Any problem with this?

5. Once I get the thing working properly, i'd like to install the rigid head. (Still trying to think of a good reason as to why.) Can someone recommend a gain setting for the Fixed mode that works with the flybarless MJ2?

Any screen shots of the PC setup software would be appreciated.

Thanks

Keith

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05-21-2008 04:48 AM  10 years agoPost 90
rroback

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Irvine (UCI), Ca

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I don't have screen shots, but I can send you my setup file. I'd really recommend sliders for the gains, as varying surfaces, and climate conditions need different gains. I have a switch setup for auto-trim, no problemo with that. Forward freewheel I believe is basically how much your heli will go forward, before the horizontal/position hold tries to fight it. Basically, the Profi works fine, with very little setting changes, but if you want to get the most performance, you have to tweak all the settings. Pm me your email, and I can send you my file.

Rhett..... I can't fly, but the Profi sure can.

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05-21-2008 04:51 AM  10 years agoPost 91
rroback

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Irvine (UCI), Ca

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To answer Daytona's questions:

How high do you think you have had it so far?
I've gone up to about 150 feet or so, never had need to go further.

Would you use VR googles and live view for greater distances?
You could, but I'm not comfortable with FPV flying, in urban environments.

Do you know what will happen if the sensor hose gets turbulence regarding placement of the yellowball?
The heli basically will bounce up and down a little. I had it happen when I was fooling with different places.

And last, when the gps unit will come out, doesnt that mean that it theoretically will lock in all possible axes, and basically keep the position in a "ball" sligthly bigger than the heli diameter itself regardless of the wind strength?

-That's how it should work.

Rhett..... I can't fly, but the Profi sure can.

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05-21-2008 05:31 AM  10 years agoPost 92
keithm

rrApprentice

Ocala, FL

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Thanks very much Rhett, I'll PM my email. I'm using the two sliders that are available on the 9303, so it should work fine. After I get it working, I'll be glad to make the XP9303 setup available to anyone who needs it.

How about the gain settings for rigid fixed mode?

Keith

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05-21-2008 02:20 PM  10 years agoPost 93
rerazor

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Mich.

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Gain settings for Rigid mode is a trial and error with the PC software rigid gain adjustment. Basically, you test hover it and and lower the rigid gain (in software) until there is no oscillations or to your preferred "feeling". Once set you won't have to go back and adjust it again.

Note: Rigid gains is separate from Hor/Pos gain.

I also highly recommend to use sliders for all gain adjustments.

For Auto-trim I think your JR 9303 has a spring loaded trainer switch that would work well to toggle it on/off.

Let us know when you get the Profi and we will get you setup no problem.

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05-21-2008 11:48 PM  10 years agoPost 94
daytonabeach

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Oslo, Norway

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Just a short input regarding the rapid tail wagging with the internal gyro.
Changed from 130mm tailblades to shorter ones today, all wagging dissappeared, and the tail even locked as it should without any readjustments in gain, have my tail gain set to 67%, i will increase it again to see where the limit are now.

Now i can do clean high speed pirouettes in poss mode without any problem, at least today

Still have some minor issues with a endless wiggling in poss mode closer to the ground, around 6 feet.
It still also get these unexpected bouncings now and then in alt hold, even with lesser gain and the yelow ball safely placed from any turbulence area...

Never argue with an idiot, he'll drag you down to his level and beat you with experience...

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05-22-2008 12:37 AM  10 years agoPost 95
rroback

rrElite Veteran

Irvine (UCI), Ca

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So shorter tail blades helped both of us! Are the bounces possibly during wing gusts? In altitude hold, or damping mode?

Rhett..... I can't fly, but the Profi sure can.

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05-22-2008 01:58 AM  10 years agoPost 96
rerazor

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Mich.

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Where do you have the foam ball mounted?

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05-22-2008 07:39 AM  10 years agoPost 97
Vortex Aerial

rrVeteran

Riverside Ca

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If anyone has any more questions, ask away!
Maybe this has been asked already but if, while in altitude hold, you fly out over the edge of a cliff or across uneven terrain.....what happens?

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05-22-2008 07:44 AM  10 years agoPost 98
rroback

rrElite Veteran

Irvine (UCI), Ca

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you keep flying, level. Altitude hold works based on air pressure.

Rhett..... I can't fly, but the Profi sure can.

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05-22-2008 10:22 AM  10 years agoPost 99
daytonabeach

rrElite Veteran

Oslo, Norway

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Rhett, its in alt hold... you wrote wing gusts, did you mean wind gusts?

My canopy are pretty tight wraped around the body, and the whole for the pletti is also very tight around the edges, so it shouldnt be affected, when flying yesterday it was no wind at all...

Here are a couple of pics of my profi install, the yellow ball are placed inside the frame on top of the rx, according to captron it shouldn be any problem.

Yes a barometric sensor always measure the preasure from the sea level, wich means that the surrounding terrain wont have any effect.
I assume the profi calibrates itself when powering on.

What im not sure about is of you take of in high altitude and descend, theoretically the pressure input would then be negative, but im not sure if that does matter, or if it just reacts on the preasure differences regardless of a negative or positive innput, i will ask Joachim about that.

Note, the 611 is still just there in case i need the ext gyro, but so far it doesnt seem nescesary

Never argue with an idiot, he'll drag you down to his level and beat you with experience...

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05-22-2008 05:47 PM  10 years agoPost 100
rroback

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Irvine (UCI), Ca

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I did mean wind gusts. If it's windy, or you're doing forward flight, I'd use damping mode. I didn't notice a difference, until I really started using the profi in wind.
Just to be clear:

Altitude holding- only use while hovering. don't fly in this mode ( you can move a little, but try not to). I usually fly to a spot, then switch into position hold and altitude hold.

Altitude Damping- used when in forward flight (when trying to do very level forward flight, such as for filming), or in windy situations. Basically acts like holding mode, but when a gust hits, the heli doesn't bounce.

About your ball, Daytona. try to wrap some tape around the frame. You only need a tiny little hole for air to get there, so I'd cover as much as possible. My ball didn't work so well right there, but I didn't test it for very long.

Rhett..... I can't fly, but the Profi sure can.

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HomeAircraftHelicopterAerial Photography and Video › Helicommand Profi( EDIT: It works!)
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