Bjoern

Mods for the Learjet 35A

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Okay, this was a bit of a quickie, but here's something to enhance the Learjet's usability.

 

Content (as of 24/12/2016):

1. Load/save functionality for all toggle-type switches and payload manager parameters

2. Key controls for some special functions

3. OPTIONAL: A very simple weather radar for those without a payware gauge

 

 

More information can be found in the readme. Note that I didn't have time for thorough testing, so there may be bugs or undesired behavior. The key/event-switch bindings are also most likely subject to further enhancement.

 

 

Download (will always link to the most recent revision):

https://drive.google.com/file/d/0B6K_xiE2GqmMZFJoTWgyVUJpaTQ/view?usp=sharing

 

 

 

 

Other available mods:

- VC texture mod by Mihail Miklasevskij: http://flysimware.com/website/Repaints/FSW_Panel_Update.zip

- LUA scripts for the custom switches (download link?)

 

 

Feel free to share any other mods for this aircraft in this thread.

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Annnnd here's a first new revision. Fixed a small bug in the loading script and linked the "AFCS Eng" button to the default autopilot master switch functionality.

 

Download link: See previous post.

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Hi Bjoern,

 

You're always a big asset to anything you get involved with - thanks for sharing - happy holidays and I'll take a look when I have some time...

:wink:

 

Regards,

Scott

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Well, after following this thread and the other L35 post for some time I decided to treat myself Xmas morning and of course got an extra special treat with 50% off.

Looked at a couple of videos and after 2 or 3 test flights plugged in a flight plan on the GNS ( not reinstalled the GTN after a reinstall of HF2) from KOAK-KCLM. Stepped up to altitude 16000' to get used to the autopilot. tried to use the gps/nav but had some issues so continued the flight with the HDG only.

Descended to 7000' at the TOU vor turned on a heading of 90 deg and slowed down, That's when I got into difficulty, to much to handle with all the alarms and alerts going off.

I think I let the approach speed get down to low along with a low fuel alert. I will have to look up the approach speeds and follow the check list a bit better.

 

Anyways thank to all who have contributed to this thread and have a good new year.

 

bob

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Hi Bob,

 

Welcome to the fold... While I use the GTN exclusively - the two most common reasons why an aircraft won't fly the GPS track - this plane you need to fly an intercept course to the GPS track - then you'll see the NAV button indicator switch from "armed" to "captured"... The second is the VLOC/GPS button on the GPS itself - which selects the NAV source between the radios and GPS unit...

 

Please feel free to post more - we'll get it sorted out...

 

Regards,

Scott

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Please feel free to post more - we'll get it sorted out...

That's for posting Scott, Been flying small GA's to long, Ha Ha, need to think outside the bubble.

I saved the flight so will pick it up later and take on board your suggestions.

 

many thanks.. bob

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Hi Bob,

 

Sounds good - just to clarify - so - normally - before takeoff - my GPS track is programmed in the GPS and my VLOC/GPS switch is set to GPS... I set my initial cleared altitude in the altitude preselect window... I use RC4 for all IFR flights for improved ATC service... So after takeoff and cleanup I set the autopilot on and press the HDG hold - Altitude Select - and VS hold to on... Then when I want to intercept the GPS track - I press the NAV hold button which indicates ARMED... The HDG hold stays illuminated - and I use the HDG bug to steer and intercept course - somewhere around 30 degrees - to intercept the GPS track... When intercepted the autopilot automatically switches off the HDG hold - and the NAV hold switches to captured... Similiar to how it captures altitude...

 

Regards,

Scott

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Hi Bob,

 

Sounds good - just to clarify - so - normally - before takeoff - my GPS track is programmed in the GPS and my VLOC/GPS switch is set to GPS... I set my initial cleared altitude in the altitude preselect window... I use RC4 for all IFR flights for improved ATC service... So after takeoff and cleanup I set the autopilot on and press the HDG hold - Altitude Select - and VS hold to on... Then when I want to intercept the GPS track - I press the NAV hold button which indicates ARMED... The HDG hold stays illuminated - and I use the HDG bug to steer and intercept course - somewhere around 30 degrees - to intercept the GPS track... When intercepted the autopilot automatically switches off the HDG hold - and the NAV hold switches to captured... Similiar to how it captures altitude...

 

Regards,

Scott

Thanks for the reply Scott, followed your instructions to the letter, nailed the ils approach and landing, very satisfying. still in the early stages of getting to know the L35 but that's all part of the enjoyment.

As I said just done a new install of Prepar3D HF2 and like to do a few flights before putting the addons in but in this case I took the advantage of the offer from Flysimware.

 

thanks again

bob

  • Upvote 1

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As I said just done a new install of Prepar3D HF2 and like to do a few flights before putting the addons in but in this case I took the advantage of the offer from Flysimware.

 

I "updated" to P3d HF2. The Lear is as beautiful as ever. Just hit the update GTN 750 and the gauge will update automatically! It functions 100% with HF2.

 

Sad to say my REX Advantage WX weather gauge needs an update. REX are aware and are working on a hotfix which is due in a week or so.

 

Scotts 100% correct re the Navtrack intercept. Its the extra speed of the Lear that needs adjusting for when intercepting the magenta line! She's a real speed bird this one!

 

Happy Holidays!

 

David

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Scotts 100% correct re the Navtrack intercept. Its the extra speed of the Lear that needs adjusting for when intercepting the magenta line! She's a real speed bird this one!

Yes found this out, managed another flight this morning from KOAK-KSEA, adjustment of the speed needs careful attention, nearly lost it on the final so a good job keeping one eye on the needle.

 

 

bob

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Guys, can we discuss aircraft handling in another thread? I'd like to keep this one focused on modifications for the aircraft.

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Guys, can we discuss aircraft handling in another thread? I'd like to keep this one focused on modifications for the aircraft.

Sure, my fault, in a rush to tell someone I had purchased the L35, I hadn't checked to see if I was in the right thread, should have started a new one, so if I have any more queries I will.

 

bob

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Speaking of mods, do you guys feel the Yaw damper is very weak in some phases of flight? Namely departure and approach?

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"Yaw_damper_gain" in the aircraft.cfg is your go to line in that case.

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Let's get this over with before it starts to haunt me in my dreams.

  • Updated for v2.8
  • Added some callsigns for implementation via Editvoicepack
  • Rearranged and partially optimized System.xml
  • Partially realistic simulation of the electrical system (realistic batteries, generator loads)
  • Simplified nose wheel steering logic
  • Modified autopilot vertical modes (SPD, VS, ALT hold, ALT SEL)
  • Expanded key control gauge
  • Resized and compressed shared textures (size cut down by two thirds)

 

Download:

https://drive.google.com/file/d/0B6K_xiE2GqmMZFJoTWgyVUJpaTQ/view?usp=sharing

 

  • Upvote 1

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On 3/5/2017 at 6:05 PM, Bjoern said:

Let's get this over with before it starts to haunt me in my dreams.

  • Updated for v2.8
  • Added some callsigns for implementation via Editvoicepack
  • Rearranged and partially optimized System.xml
  • Partially realistic simulation of the electrical system (realistic batteries, generator loads)
  • Simplified nose wheel steering logic
  • Modified autopilot vertical modes (SPD, VS, ALT hold, ALT SEL)
  • Expanded key control gauge
  • Resized and compressed shared textures (size cut down by two thirds)

 

Download:

https://drive.google.com/file/d/0B6K_xiE2GqmMZFJoTWgyVUJpaTQ/view?usp=sharing

 

Thank you! Installing to my Lear35 as I type!

 

Edit: In flight from KMKC to KOMA.... I noticed I am unable to activate just the flight director. The autopilot must be engaged to get it to come up, i.e I can't engage say HDG mode until ENG is selected on. Also noticed both clocks are inop, blank displays.

Did I goof something up with my install? Other than the above, it seems to be performing well...

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The flight director behavior was not touched by me and I'm not sure if it's a general FSX limitation or the way FSW coded it.

 

I also did not touch the clocks. Check that the panel.cfg entries ([VCockpit22] and [VCockpit23] for panel.GNS and [VCockpit11] and [VCockpit12] for panel.main) and the associated .cab file (FLYSIMWARE_DIGITAL_CLOCK.cab) is present.

 

Also, keep in mind that I can 't support any GTN750 cockpit configurations since I do not own the gauge.

Maybe I should add a disclaimer to the readme...

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18 hours ago, Jason_Peters said:

 I noticed I am unable to activate just the flight director. The autopilot must be engaged to get it to come up, i.e I can't engage say HDG mode until ENG is selected on.

I can verify the flight director should work without the AP being Engaged -- I use it that way frequently.

Al

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1 hour ago, Bjoern said:

The flight director behavior was not touched by me and I'm not sure if it's a general FSX limitation or the way FSW coded it.

 

I also did not touch the clocks. Check that the panel.cfg entries ([VCockpit22] and [VCockpit23] for panel.GNS and [VCockpit11] and [VCockpit12] for panel.main) and the associated .cab file (FLYSIMWARE_DIGITAL_CLOCK.cab) is present.

 

Also, keep in mind that I can 't support any GTN750 cockpit configurations since I do not own the gauge.

Maybe I should add a disclaimer to the readme...

I'm not accusing your work of causing the issues Bjoern. Just pointing out I'm having them. I'll take a look at those clock entries in the .cfg later this evening. I appreciate your help!

58 minutes ago, ark said:

I can verify the flight director should work without the AP being Engaged -- I use it that way frequently.

Al

Al,

Agreed, I've used that way a bunch as well. Are you flying v2.8? GTN bird with Bjoern's mods?

Not sure why it isn't working... will fiddle with it some more tonight.

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1 hour ago, Jason_Peters said:

 

Al,

Agreed, I've used that way a bunch as well. Are you flying v2.8? GTN bird with Bjoern's mods?

 

Hi Jason,

No, I went back to ver 2.7 and then added back some modifications less extensive then Bjoern made. For example, I'm using the ver 2.8 panel.MAIN folder but I modified the  Learjet_35A.cab file a bit to improve (at least in my judgement) the GTN750 hold/capture range for NAV and the Glide Slope. So I guess what I have is something like ver 2.75.  The AP functions seem to work fine in ver 2.7 so I didn't change any AP functions.

Al

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Sorry guys, I can't figure the FD out on the fly. Its conditions and functions are in the code that was left unchanged by me, but I'm not sure what it's supposed to do. Yes, it requires actual autopilot functions to be engaged, but the interaction with FSX' internal flight director is a mystery to me. Note that I've never used a flight director before. It's either stick and rudder or everything automated for me.

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8 hours ago, Bjoern said:

Sorry guys, I can't figure the FD out on the fly. Its conditions and functions are in the code that was left unchanged by me, but I'm not sure what it's supposed to do. Yes, it requires actual autopilot functions to be engaged, but the interaction with FSX' internal flight director is a mystery to me. Note that I've never used a flight director before. It's either stick and rudder or everything automated for me.

Bjoern,

If it helps, I removed your autopilot modifications, and the flight director now works as it should.  I.E. the autopilot doesn't have to be engaged.  Unfortunately, that means I get the crap v2.8 autopilot issues...

On the clock issue, I found that was my fault. I had failed to renumber the gaugexx entries appropriately as directed by your instructions. Once I did, they worked.. imagine that!

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