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tatfsn

Learjet 24B Flight Dynamics Issues (FSX)

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I am also having issues with vibration of the Lear above 230 knots (in FSX) very consistent and very annoying. If you go to the outside view you can see the Tail elevators juddering  

 

I would love to know what you did to resolve this matter ??

 

I find the gear sound now way too loud. Kicks in at around 110 knots ... love to tone that back down.

 

I have other issues with the Lear also regarding blowing out my VAS causing a quit to desktop when trying to look at the map view. I have talked to Bill about this and his recommendation would be to downscale my scenery or disable ORBX  - I am reluctant to do this. I really do like the Lear Jet but am considering hangering it until a lower res version comes out. The other option is a complete reinstall of FSX and with all my add-ons that is waaay down the list.

 

No issues with vibration here.  Nor with VAS usage, and I've flown it all over the place, including flights within Orbx regions.  As for the gear noise, I did find that a bit too loud and disabled it.


Jim Stewart

Milviz Person.

 

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You do not say whether you are running FSX or Prepar3D.

Do you have Orbx Vector and Global also? also ASN?

If you do and you are running fine then either I have a memory leak or something else is the issue,.??

 

I also still get shudder over 230 knots and porpoising even after patch 1.1 (this is starting from Bill's Cold and Dark startup.)

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You do not say whether you are running FSX or Prepar3D.
Do you have Orbx Vector and Global also? also ASN?
If you do and you are running fine then either I have a memory leak or something else is the issue,.??

 

So much of what you're asking is why one simmer has issues while another does not.  We all have such a unique blend of addons on our computers that it could almost be akin to a fingerprint. ^_^

 

My experience with no issues regarding shuddering or VAS usage is based on: FSX, ASN, REX Textures, FTX Global w/ UTX (or alternatively on some flights, various Orbx regions).  While VAS usage could be linked to such things as FTX Vector (perhaps), the shuddering you are describing sounds like something that would not be caused by scenery addons.  Maybe it might have to do with how your ASN is configured?


Jim Stewart

Milviz Person.

 

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Jim, thanks for your in-depth reply.

 

Not using ASN on load does have some affect - the suddering occurs at a higher speed now. Between 250-270 Knots. I uninstalled the Lear and reinstalled again including the 1.1 patch and I noticed a smoother experience with the Autopilot at higher altitudes and turbulence shuddering where you would expect it. (descending thru a cloud layer after reinstating ASN).

I did try ASN with all default settings by the way before this and it made no difference. I did however manage a slightly longer flight (Vancouver to Seattle) that crapped out when I called up the Map to read the ILS runway setting as I descended passed the airport thru cloud at 6000 feet heading south to approach runway 34R - it just quit out on me again. (and it was such a sublime experience too!!).

 

The first time I installed the Lear it asked permission to overwrite a file?? ( I assumed this file was an update used by other Lionheart products and as the option given was only OK, I went ahead. The second time I installed the Lear no such choice was presented. I have no idea what file was overwritten as the process doesn't say.

 

I will now try it in Oceania alone without Global or the Pacific Northwest enabled and see if I can take it on a further flight to see if there is some memory bleed in those areas.

 

As I do love this little bird (and there is no money back garauntee)  I am prepared to spend more time to resolve it than I would normally do. In the back of my mind I am considering a total reinstall but have hesitated for some time because of the choices and lack of HD space. I purchased a 2 Terrabyte drive yesterday with the intent of beginning the process, but my second choice has to do with which version.. GOLD? Prepar3d? or my present copy FSX base..

If I choose Prepar3d there are a number of payware aircraft I wll not be able to fly so am hesitant to loose my investment in those products (PMDG, Aerosoft Airbus, F1 DC9 and others).

 

Any recommendations from readers most welcome

 

Thanks

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Not sure what to suggest in terms of your memory issues.  I've been on some pretty long flights with it (2+ hours) into and out of Orbx regions with no issues.  I never use the FSX map however, since I'm using the Lear in conjunction with the Flight 1 GTN750.

 

 

 


If I choose Prepar3d there are a number of payware aircraft I wll not be able to fly so am hesitant to loose my investment in those products (PMDG, Aerosoft Airbus, F1 DC9 and others).

 

Until certain payware aircraft that I fly are compatible with or released in P3D, I'll stick with FSX.  My priority order goes Aircraft > Scenery > Eye Candy.


Jim Stewart

Milviz Person.

 

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Loaded up Oceania and tried Christchurch airport for touch and goes using the ILS with the Lear.

Got about 3 touch and goes before she quit on me again when I alt tab'd out to use a reference file. alt tab'd back into FSX and bam - back to desktop.

 

As an alternative test, I flew the Milviz 737 200 from Cairns to Mckay with ASN weather and real times. taking off late afternoon  and by the time I reached McKay the cloud ceiling had dropped to 1800 feet and twilight was almost over. Brilliant flight (lots of eye candy)  and I really enjoyed the experience...  The total time was probably close to 90 minutes... Point is, I can currently not get that sort of reliability with the Lear - so something is not right. Is it my system? I don't know so....

 

I have decided to purchase FSX Gold and install it on the 2 Tb drive, then slowly build it with add-on's. But you can be sure the first thing I will try will be the Lear Jet....

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I have enough RW Lear experience and I can say that this FSX Lear 24 is really close to how they fly. It's actually a more stable flight model than RW but I don't think the public would tolerate the amount of time that it takes a pilot to be able to handle the Lear. It takes many hours of hand flying to be able to just hold altitude and heading especially in the flight levels. On approach a new LearJet pilot will dutch roll all of the way down final. I am not sure what wing they tried to model here exactly but I feel they did it well enough to be darn close! The systems are really close (Funky like the RW) and keep in mind...the real autopilot didnt work all that well either. :) It's one of the first corporate jets and you'll be remiss if you don't keep that in mind when comparing it to other, later model jets. I was shocked when I first transitioned to the Gulfstream Line from the Lear 23, 24,25,35,36,55. Learjets really didn't change alot system-wise until the 45 which was built after the 55.

I'll spend some more time with it to see if the power comments are valid. I do remember 1000 lbs per side was good gouge for 200, 250, 300. As far as needing a lot of power to taxi, It didnt. But to takeoff, it certainly did with full fuel. You didnt go many places without full fuel! :) A totally must have if you can run it in your rig. Fun Jet! Lets see a Clay Lacy N664CL or N464CL paint scheme.

Thanks

Will Whiteside

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After a KSTS KVNY leg at FL410 and .81 I have noted a few minor issues.

I have to begin with how well this model simulates a RW 20 series LearJet. Where is the 25D?

:)

Here are my notes:

There is no MMo needle on the ASI.

 

There is no way to turn on the tip tank lights(Recognition Lights).

 

The nav lights show easily through the tip tanks from the cabin

 

The Pressurization system is inop.

 

There are no rivets on the engine cowlings.

 

Hydraulic pressure remains after you use the aux pump to pressurize it.

 

Nacelle heat lights come on when you turn on the nacelle heat? Not sure on this one. They switched that along the production line.

 

Spoilers have more deep rumble and slightly vibrate the aircraft

 

Spoilers are about 40% as effective as these modeled.

 

The air ignition should snap crisply when switched on with no engines running and during startup.

 

Where is the flight director?

 

When Landing or Taxi lights left on they show through wheel wells.

 

When same lights are off the wing roots are illuminated on top skin.

 

The lights on tip tanks are above and below the tip tanks.

 

On Handling:

 

The airplane is way too stable in roll. It should be very light and not very "locked in" especially when tips full almost wallows at less than 200 KIAS. In pitch it should be a little lighter.

Yaw seems a little stiff as well.

 

Well as I said, great job and what a nice experience to reflect on. This truly is a close rendition of a Lear 23.

 

Fuel burn was spot on. I climbed at 250 to 10K and 300 to .78 to FL410. Time to climb seemed a little quick. Maybe 5% less thrust. Fuel flow at Altitude looked really good.

A parabolic descent to a near Sea Level field(KVNY) and burned about 1900 lbs for the flight. I didnt get the time but I had about a 10 kt TW component average.

It isnt quite as skatey on the ground unless you are in snow and ice so those figures could be tweaked as well.

 Great Job!

Will

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As another long time RW pilot I'd really like to see: flight director, mmo needle and pressurization. Were a patch available down the road I would not be averse to paying for it. All in all it's a great aircraft and well worth the money. Wish I'd had a chance to fly one in the RW.

Dave

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Hello all,

I do not have any of these vibrations problem. I'm so sorry for tatfsn for that.

Good to hear that version 1.1 helped to fix the problem.

This addon is just fantastic and the mroe I fly rhe bird, the more I want to fly it, definitely!

William, thanks for the info about the turbojet engine. I will try the 6800 feet/min rate of climb I guess :))

Super-WOW as you said.

For takeoff, what I do is to throw full power and immediately reduce as soon as i'm climbin,g out of the runway, and reduce short short to 50-60% as you wrote.

A fantatisc bird for sure.

 

A rare one though, there is only one for sale at GlobalPlaneSearch. com, in the philippines for around 100 000 USD.

 

Best regards et "bon vol" (as we say in french),

Philippe

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Well, just to add my findings... I am also experiencing the vibrations in FSX. Have not done any investigations yet since I just purchased it last night. Runs great in P3D V2.4 though. I will be flying it there for now...

 

Bob C.

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Well, just to add my findings... I am also experiencing the vibrations in FSX. Have not done any investigations yet since I just purchased it last night. Runs great in P3D V2.4 though. I will be flying it there for now...

 

Bob C.

 

I just started flying / testing all my aircraft with P3Dv2.5 (hot fix #2) and FSX Aacceleration.

I will put in my checklist to look out for this vibration on future flights.


Best Regards,

Vaughan Martell - PP-ASEL KDTW

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