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Author Topic: Omnibus F4 Autopilot...iNAV....Fixed Wing.  (Read 3880 times)

Cfish

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #45 on: November 17, 2017, 04:39:50 PM »

Guys,
I have my ezuhf connected via ppm to omnibus f4 pro Fc.  I have ch8 programmed to Rssi in the ezuhf configurater, and ch8 listed as Rssi in the Inav configurater.  Getting a flat reading on ch8 however, when looking at receiver tab in inav.  Same on the osd - no rssi movement.  Turn radio off and it still reads same Rssi as when radio is on and servos are working.

Any suggestions on how to get it working?  Also, should I use Link instead of Rssi in the ezuhf output?

Thanks
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English Turbines

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #46 on: November 18, 2017, 01:36:55 PM »

Guys,
I have my ezuhf connected via ppm to omnibus f4 pro Fc.  I have ch8 programmed to Rssi in the ezuhf configurater, and ch8 listed as Rssi in the Inav configurater.  Getting a flat reading on ch8 however, when looking at receiver tab in inav.  Same on the osd - no rssi movement.  Turn radio off and it still reads same Rssi as when radio is on and servos are working.

Any suggestions on how to get it working?  Also, should I use Link instead of Rssi in the ezuhf output?

Thanks

 Hi m8,
            I have mine set to Link Quality rather than RSSI....On channel 8....via the SPPM stream.

 This gives a full signal strength reading of around 78 and it drops to about 5 with TX off....You can see it in action on my later clips of the Falcon after I converted it from 5.8G to UHF and 1280 video.

  The early clips on 5.G feature Audio as the vtx had a Mic onboard which proved useful for hearing what iNAV was doing with the throttle in certain flight Modes. The silent clips are on UHF.

  Im using a Sanders modified into a Dipole on the RX....the value can be seen to be dropping as I fly further out, so it appears to work albeit not perfectly probably because of IRC inverted signal.

    Hope that helps....:)
                                                                                               :vulture:







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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

Cfish

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #47 on: November 19, 2017, 03:21:25 AM »

Thanks, ETurbines.  I switched from Rssi to link and now its reading varies with tx on/off.  I'm in the final stages of getting this Ranger ex dialed in and looking forward to doing some fpv flights beyond LOS.  Installed a bigger motor last night, revved it up, and the plane bucked up and and the prop sliced my thigh real good.  This shits gettin dangerous!
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English Turbines

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #48 on: November 19, 2017, 12:49:49 PM »

Thanks, ETurbines.  I switched from Rssi to link and now its reading varies with tx on/off.  I'm in the final stages of getting this Ranger ex dialed in and looking forward to doing some fpv flights beyond LOS.  Installed a bigger motor last night, revved it up, and the plane bucked up and and the prop sliced my thigh real good.  This shits gettin dangerous!

 Hi m8,
            Pleased the Link setting worked for you...Its not perfect, but since I run my EZ TX Module on Low power, it shows some signal strength / quality drop at range, which is at least an indication.
  Hope your injury isn't too serious, I know the motor / prop combo on my big Skywalker is pretty powerful too, too powerful actually, I rarely have to use full power, even to take off.
 I assume you are using the Rudder control with iNAV controlling it..?...Be interested to see how that works out, I know my big Skywalker is a pig to fly without coordinated Aileron / Rudder combination, and RTL with my Storm controlling just Aileron / Elevator is like watching paint dry...lol.

                                                                                               :vulture:



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Nothing beats the smell of Jet-A at 800 Celsius...:)
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SW1900 UHF Storm.

Cfish

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #49 on: November 19, 2017, 04:27:34 PM »

I'm flying a Ranger ex, and haven't switched out of passthru yet.  All LOS so far to get it balanced.  Next flight I'll be switching into horizon with autotune to tune the piffs. 

ETurbines, i assumed inav controlled elev, ail AND rudder.  Are you implying there is a inav setting that needs activated to control both ails and/or rudder?  Or maybe a ail/rudder mixing function within inav? I'm not aware of either, but new to inav.  Would sure like to get your input!
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English Turbines

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #50 on: November 19, 2017, 06:06:46 PM »

I'm flying a Ranger ex, and haven't switched out of passthru yet.  All LOS so far to get it balanced.  Next flight I'll be switching into horizon with autotune to tune the piffs. 

ETurbines, i assumed inav controlled elev, ail AND rudder.  Are you implying there is a inav setting that needs activated to control both ails and/or rudder?  Or maybe a ail/rudder mixing function within inav? I'm not aware of either, but new to inav.  Would sure like to get your input!

 Hi m8,
             Im assuming you have selected the normal "Plane" Pre-set inside iNAV..?  If so, then it's my understanding iNAV will utilise Rudder control for doing Coordinated turns with Aileron mix and that you can select how much mix your plane requires to do nice turns (if it needs any at all).
 The significance of using Rudder is very important for maintaining heading, for example when in iNAV GPS Modes, especially if like my Skywalker it suffers from adverse yaw.

 In the case of my big Skywalker 1900, it's crucial to mix in Rudder because it's very reluctant to turn well without it. Since my Skywalker uses a Storm Autopilot, it does not control the Rudder, which is why I need to y lead the Ailerons and Rudder together so the Storm uses both all the time. This is done by mechanically limiting how much Rudder movement is available.

   The downside to this, is that it means hand launches rather than takeoffs as during Takeoff, you dont want Rudder and Ailerons mixed together and during Takeoff, a LOT of Rudder authority is required.
 So, for example, with the Ailerons on maximum deflection of say 15mm, (with the Y lead mix in place) the Rudder would only have about 6mm max movement, a nice mix, giving nice turns by just using the Ailerons to steer the plane. This permanent mix also allows the Storm to fly the plane nice while turning and also during RTH and PA Mode in particular. If that makes sense...lol.
  If I were fitting out my Skywalker again, it would get an F4 and iNAV rather than the Storm. Not that the Storm AP is no good, it's just that the Skywalker 1900 will only fly well using the Rudder and Ailerons when turning.

                                                                                               :vulture:


« Last Edit: November 19, 2017, 06:08:55 PM by English Turbines »
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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

Cfish

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Re: OMNIBUS F4 Autopilot....iNAV....FIXED WING.
« Reply #51 on: November 20, 2017, 12:38:51 AM »

ETurbines, nice explanation and nice remedy you installed with the y harness.

 I did not know inav contained a ail/rud mix.  I will have to read up on it.  I did set up the plane with the presets in inav. I will say that in passthru, where I assume no ail/rud mix is activated, the big ole Ranger ex turned decently without rudder input. 

f4 fc's are so cheap .....get one and slap it in your Skywalker!  Nothing cooler than taking off a big, heavy rc plane from the ground. 

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English Turbines

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Re: Omnibus F4 Autopilot...iNAV....Fixed Wing.
« Reply #52 on: November 20, 2017, 08:54:34 PM »

ETurbines, nice explanation and nice remedy you installed with the y harness.

 I did not know inav contained a ail/rud mix.  I will have to read up on it.  I did set up the plane with the presets in inav. I will say that in passthru, where I assume no ail/rud mix is activated, the big ole Ranger ex turned decently without rudder input. 

f4 fc's are so cheap .....get one and slap it in your Skywalker!  Nothing cooler than taking off a big, heavy rc plane from the ground.

Hi m8,
           Well, its good your Ranger turns in nice because my Skywalker 1900 was completely hopeless without the mixer.

   Yes, as far as I can make out, iNAV controls both Ailerons and Rudder when in GPS Modes. How much Rudder input it uses with Aileron is adjustable too, because the Rudder on most planes is pretty sensitive.
   Yeah, my Skywalker is pretty complex internally, so changing it all now would be a ball ache...Having flown iNAV now, I would not hesitate to fit it though, it just works so well in a wing its untrue..lol.
  So, be interested to see how you get on with it as you start to get it dialled in and start using the flight Modes available.
 
Keep us posted will you...?

                                                                                                :vulture:



« Last Edit: November 21, 2017, 09:08:17 AM by Coyote »
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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

BigT

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Omnibus F4 Autopilot...iNAV....Fixed Wing.
« Reply #53 on: December 05, 2017, 09:54:05 PM »

I need to replenish my stock of header pins. Any one know a uk supplier please?


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English Turbines

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Re: Omnibus F4 Autopilot...iNAV....Fixed Wing.
« Reply #54 on: December 05, 2017, 10:57:28 PM »

I need to replenish my stock of header pins. Any one know a uk supplier please?


Sent from my iPad using Tapatalk

    I get mine from E-Bay.....RS prices are a sick joke...and I have one a 5 min drive away....wont go there....lol

                                                                                                :vulture:
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Nothing beats the smell of Jet-A at 800 Celsius...:)
Bixler 2 EZUHF 1280mhz Video.
SW1900 UHF Storm.

Steve W

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Re: Omnibus F4 Autopilot...iNAV....Fixed Wing.
« Reply #55 on: December 06, 2017, 11:32:16 AM »

ET quick side note (in case others are reading this thread :) ) .. the Storm doesn't, but the Tornado does support a rudder mix with the ailerons so you can do nice coordinated turns.
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