Jump to content

Sign in to follow this  
Glynn

FLC mode

Recommended Posts

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. 

Share this post


Link to post
Share on other sites

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


When Pigs Fly . Ray Marshall .

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
Share on other sites

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


When Pigs Fly . Ray Marshall .

Share this post


Link to post
Share on other sites

This is going to make programming my hardware very difficult

 

What hardware / software are you using?


Best Regards,

Vaughan Martell - KDTW

Share this post


Link to post
Share on other sites

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

  • Upvote 1

When Pigs Fly . Ray Marshall .

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
Share on other sites

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.


Best Regards,

Vaughan Martell - KDTW

Share this post


Link to post
Share on other sites

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 :)

Share this post


Link to post
Share on other sites

 

 


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.


Stephen Munn

 

Share this post


Link to post
Share on other sites

 

 


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 ...


Best Regards,

Vaughan Martell - KDTW

Share this post


Link to post
Share on other sites

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.


Best Regards,

Vaughan Martell - KDTW

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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 


imageproxy.png.c7210bb70e999d98cfd3e77d7

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    34%
    $8,535.00 of $25,000.00 Donate Now
×
×
  • Create New...