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Glynn

FLC mode

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Has anyone got the FLC mode to reliably capture the set altitude, if so can you please outline the steps you used.

VS mode works fine as far as I have tested it but FLC mode just busts straight through the set altitude.

Have not got as far as VNAV mode yet, in my testing I have spent way too much time just trying to sort out the FLC mode , if FLC mode is in fact terminally broken I may have to pursue a refund which is a shame as the product has some potential. 

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Before takeoff:

-Set desired altitude with ALT knob

-Set initial VS with VS wheel (+2500 FPM works well)

-Set runway HDG with HDG knob

 

After Takeoff:

-Retract gear, establish climb, retract flaps

-Switch on AP, click HDG button (That's all, don't click anything else, ALT, VNAV, VS, etc.)

-When acft accelerates through 200 KIAS click FLC button

-Adjust selected speed if needed using wheel on 2D autopilot (200-220 kts works well)

-Click FMS NAV button when established on flight path

-Aircraft will level off at preset altitude and continue along FMS route

 

Of course, this assumes that you have a flight plan and an active leg loaded in the FMS. (RayM)

 

 

 

Ray

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I can see what is happening now thanks to the tooltips

The VS wheel on the 2D autopilot panel is actually changing its function depending on the AP mode selected,  

FLC(flc speed ref) VS (vspeed hold sel) ALT (AP pitch ref)

I may be very wrong here but I doubt that is how the wheel operates in real life, can you confirm Ray ?

 

This is going to make programming my hardware very difficult

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I can see what is happening now thanks to the tooltips

The VS wheel on the 2D autopilot panel is actually changing its function depending on the AP mode selected,  

FLC(flc speed ref) VS (vspeed hold sel) ALT (AP pitch ref)

I may be very wrong here but I doubt that is how the wheel operates in real life, can you confirm Ray ?

 

This is going to make programming my hardware very difficult

I think it is just exactly like the real deal. The pitch wheel has 3 different functions, depending on what it active at the time. (maybe more)

 

Ray

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This is going to make programming my hardware very difficult

 

What hardware / software are you using?

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Here is what the CJ2 FSI Sys book has on the Pitch Wheel.

 

Regards,

 

Ray

app _ 0.jpg

app _ 1.jpg

app _ 2.jpg

app _ 3.jpg

app _ 4.jpg

app _ 5.jpg

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What hardware / software are you using?

Goflight mcp and the Goflight interface tool (GIT)

Many thanks for that Ray, looks like they got it pretty close.

Need to have a good think on how to program the wheel functions in GIT

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Need to have a good think on how to program the wheel functions in GIT

 

I used to use GoFlight .. but now I am just using FSUIPC.

 

I have Saitek throttles .. with rocker switch buttons.

I assigned one Up/Down rocker for vertical F/S and another rocker for FLC speed bug.

 

Both work.

But.

In testing I found that in FLC mode once the speed bug is set e.g. 190Kt  all ok ... later I can command a new speed (bug e.g. 200kt) with the Saitek rocker switch  and the new speed shows up in tool tips) but the CJ2 will not do the speed change (pitch)  immediately .. I have to move the Speed wheel Up or down e.g. 1 Knot (click on it with the mouse) to wake up the pitch logic and then the FLC commences at the new speed .. by adjusting pitch to sync the new speed and then resume climb.

 

In another post on the forum I think it was mentioned the FLC logic was like this .. once the speed was set .. I forgot what the poster said .. but it basically reset the speed logic but some method .. so the next speed could be initialed ... I will search around and see if I can find that post.

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A good practice is when the aircraft is within 1000 ft of the target climb, switch from FLC to V/S, throttle back a bit, and reduce V/S to around 300-500 ft/min so the aircraft smoothly captures the target altitude and the owner's party back in the cabin don't spill brandy all over their clothes :)

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but the CJ2 will not do the speed change (pitch)  immediately .. I have to move the Speed wheel Up or down e.g. 1 Knot (click on it with the mouse) to wake up the pitch logic and then the FLC commences at the new speed

 

This suggest that if its available the Lvar that represents the position of the Speed Wheel needs to be updated in GIT also.

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This suggest that if its available the Lvar that represents the position of the Speed Wheel needs to be updated in GIT also.

 

That part is unknown to me .. I have no idea what GIT is ... must be programming stuff?

 

Anyway I am just testing this FSUIPC controlling the speed bug in FLC .. it could be I have FSUIPC not configured quite right ...

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Further info on my test with FSUIPC and assigned rocker switch controlling the FLC SPD bug.

 

What I found so far.

 

If in FLC at a speed and I want a new speed FLC speed + or -.

 

Select a new speed with the rocker switch.

 

I click A/P FLC to exit it.

 

Slow or increase to new speed throttle up/down.

 

Select A/P FLC again to start climbing at new speed.

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Many thanks to those who responded, I now have a clearer understanding of what is going on, hopefully I can get this bird configured now.

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Hi Folks,

 

Just a heads up - someone reported in the TBM-850 2.0 thread - that Carenado fixed the FLC code in the autopilot... If it's still truly broken - maybe some "Official" support tickets might help get it rectified...

 

I'm familiar with using FSUIPC to setup controllers - I'd really like to offload as many functions of this autopilot to my joysticks as I can... I'm assuming you're using the "Button Presses" tab in FSUIPC... I know that FSUIPC has more FS options available in the drop down list than FSX/P3D provides... 

 

Can someone explain how I can setup FSUIPC to map the function - such as "FLC SPD Bug" - as I don't recall seeing that as an option...

 

Can just all the autopilot bugs (such as CDI) and buttons be mapped to a joystick ??? Would anyone have a list of which ones can and which ones can't ???

 

Thanks...

 

Regards,
Scott 

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I'm assuming you're using the "Button Presses" tab in FSUIPC... I know that FSUIPC has more FS options available in the drop down list than FSX/P3D provides...

 

 

 

Can someone explain how I can setup FSUIPC to map the function - such as "FLC SPD Bug" - as I don't recall seeing that as an option...

 

 

FSUIPC for controlling the CJ2's FLC autopilot speed bug:

 

This is what I used .. selected from FSUIPC's :

 

"Select for FS Control" section (checkmark the box to its right).

 

Then from the drop down list make your button choice from the long list of choices:

 

Ap Spd Var Inc

Ap Spd Var Dec

 

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You are welcome Scott,

 

If you have a spare Button/rocker switch you could also do the Autopilot V/S (feet/sec) Bug Up/Down with FSUIPC:

Ap Vs Var Inc
Ap Vs Var Dec
 

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Hi Vaughan,

 

Yeah - I'll have to look more closely - the list is so long - when I do look I seldom find what I'm looking for... I guess "altitude preselect" is in there too... I'll check when I get some sim time - no need to look on my account...

 

Thanks again - very helpful...

 

Regards,
Scott

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Hi Folks,

 

FYI: I did open a ticket with Carenado on the FLC problem - they stated that I'm the first one to report any issue with FLC - they weren't aware of any issue...

 

Regards,

Scott

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Hi Folks,

 

FYI: I did open a ticket with Carenado on the FLC problem - they stated that I'm the first one to report any issue with FLC - they weren't aware of any issue...

 

Regards,

Scott

 

What did you indicate was wrong with FLC on your trouble report to Carenado?

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Hi Vaughan,

 

Unable to maintain selected speed and blows through target altitude... I've seen some work around as mentioned - but I think it should work... Also - I've seen FLC problems mentioned countless times on various aircraft...

 

Regards,

Scott

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Unable to maintain selected speed and blows through target altitude

 

Were these the results from your flight tests?

 

I will test again ...

Initially I did not see a problem with maintaining selected speed in climb and it did capture the altitude .. (but I think it had to "hunt" a bit ... which would be = blowing the capture smoothly) I had to dial a new altitude and initiate FLC again or V/S .. I forget which ...

... ... but to be sure I will get it tested again and do a few screenshots ... easier to review with a few photos after a test.

 

Anyway .. good that Carenado will check it out and give some feedback.

 

After making assignments in FSUIPC I really did not do much testing at that time.

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Actually, almost no one uses FLC in commercial aircraft on a routine basis.  Many pilots I know say they never even consider using FLC. VS is the goto vertical change mode.

 

Ray

 

Hi Folks,

 

FYI: I did open a ticket with Carenado on the FLC problem - they stated that I'm the first one to report any issue with FLC - they weren't aware of any issue...

 

Regards,

Scott

That is total BS. It must be that guys first day on the job. I have reported it countless times.

 

But, that is why it is so important to report issues to the Support Desk. It seems a lot folks are quick to complain, but when pressed for what did the Support Team have to say, they eventually come back with - Oh, I didn't report it, I am just reading the forums and it is obviously a big problem. Yeah, right.

 

Ray

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