MFD Autopilot

[Coyote]

Yes the APM radios work. But they have to be in close proximity to the AP I found. Any long distance between them and the data was corrupt.

[BlueFlyer]

Ah, OK... well I get the live google earth view from the bluetooth connection to the tracker anyway.

[Coyote]

Yes the MFD app shows live tracking

[KillerDave]

Hi Folks,

I have fitted an MFD into my FX-79 and am yet to maiden it with this AP...

I got the plane last Christmas so I have flown it before but now I've fitted the MFD, I am S**ting myself something will go horribly wrong!

So...

When I get to the field...

1, Power everything up and let the AP warm-up and acquire the satellites??
2, Do my usual ground checks making sure everything works in MAN mode.
3, Check the plane reacts as expected in STB mode...

Take a breath and chuck it up....???

What am I missing?

[Coyote]

No.

1 Power everything up
2. Do your pre flight checks
3. Take off and fly manually. Trim the plane properly in manual and then land.
4. Go to joystick calibration and save the now trimmed stick settings.
5. Take off and only now switch to STB mode.

Skipping any of these steps first will normally end in disaster as the first foundation of the autopilot being able to control the plane will have been wrong. 

[KillerDave]

Thank you.
I will report my progress when I have been to the field...  :)

[Coyote]

Cool. If it doesn't keep its height in level flight that will mean more nose up when performing a common calibration, but I would never do a common at the field, it's best to do it back home. You can use trim in the AP menu but that's masking a problem more than fixing it.

[KillerDave]

Cool. If it doesn't keep its height in level flight that will mean more nose up when performing a common calibration, but I would never do a common at the field, it's best to do it back home. You can use trim in the AP menu but that's masking a problem more than fixing it.

Why not at the field?
I have enabled in flight tuning and calibrated the Voltage and current sensor (thanks to your video) :-)
I'm going to go through the set-up 1 more time to be sure I've not forgotten anything before I go to the field over the weekend...

[Coyote]

Because the common calibration requires the plane to be perfectly level so in a field with ground that isn't spirit levelled and wind it is near impossible to achieve compared to at home.

[KillerDave]

Because the common calibration requires the plane to be perfectly level so in a field with ground that isn't spirit levelled and wind it is near impossible to achieve compared to at home.

Ah! That's what I thought you'd say...

I have a bubble mounted in the plane and a stand.

I wouldn't expect to do a set-up flight in much wind but I get what you are saying...

Thank you.

[KillerDave]

Hi,

I got my FX-79 back in the air!
I flew off in MAN mode and it needed very little trim...

Did the Common Cal' and set off again... flew up to a good height and switched to STB mode...
Holy hell! it's solid! It was a bit sluggish in turns, next flight I'm going to turn up the Max angle...

I also tried RTH, Nice!

[BlueFlyer]

Joystick calibration....

Take of in manual mode.
Trim using tx trim buttons.
Land.
Do joystick calibration in the menu.
Save config in menu.

Then what? Power cycle the mfdap?
Whilst the mfdap is off, do I now return my tx trims to centre?

[Coyote]

No just fly, don't touch your trims either.

[BlueFlyer]

Ok ta

[BigT]

Make sure you save the settings to model 1. If you save to any other model we think you will need to load that model every time.


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