56 minutes ago, FPVSteve said:

I was watching a stream the other day of the new 12.3 closed beta (which has just released, hooray!) of someone flying into the weather and not only did the airframe start gradually icing up as they flew through freezing + wet conditions, the plane actually started losing aerodynamic performance and ended up falling out of the sky necessitating a recovery at lower altitude.

I've never seen that happen in MSFS to anyone - the worst I've seen is a few bumps of turbulence and some overexaggerated ridge lift on V1 Simulations stream.

Icing has had a weird jounrney in 2020 and now 2024.  MSFS totally supports it, but I think at one point the developer turned it way, way down (or maybe off?).  I remember in the early days of 2020, I was flying an SR22 in a northeast winter and my plane totally iced up.  I know at one point icing was turned unrealistically high.  I was icing up on the ground (if that were true, I'd be frozen in my house all winter lol - it obviously takes more than just cold to create icing).  They always seem to find the balance with realism, and of course they get a lot of requests from people who don't understand it to turn it way down.  

I've seen icing in 2024, but it is very hard to even find it if you go looking for it.  I think I've only seen it a handful of times in the sim since 2024.  Again, the sim fully supports it, but I think the developers turn it down to appease a wider audience.  

I think turbulence is similar. Unhappy players were being thrown all over the Sky and complaining vociferously and I think now everybody just keeps turbulance, on low.

Much has changed since SU3 debuted, for me.  Prior to upgrading my 7800X3D to 9900X3D I begrudgingly used NV DLSS FG to get frame rate acceptable while keeping demand controlled, that is by keeping the native rate well down to 30FPS, and doubling that.  That was back when I was using 2020 primarily, pre 2024 install.  After 2024 was installed and upgraded the CPU I was able to avoid NV DLSS FG again as I could not tolerate the strobe/flicker associated with FG while on the ground during taxi/TO.  And almost as bad was the 2nd screen judder that happens whenever I would return to the main display after interacting w/ a 2nd screen, and that was a constant issue as I am frequently moving between both screens.  And my goal was to maintain 50FPS-native, and could do that in most all but the most demanding airports.   So for a while in 2024 was able to run w/o FG.  Then, sometime pre SU3 and maybe made worse by SU3, native frame rate dropped enough to make my goal of 50FPS-native less doable, except in modest airports.  So for maybe 5 months or so was running 2024 w/o FG.

When frame rate started to decline a few months back, just enough to have me dropping rate down to 40FPS-native and even that got threatened in complex airports, I decided to retry NV DLSS FG, as of about two weeks ago or so.  To my delight the 2nd screen judder issue is GONE now.  So that was a good half of what didn't work well for me w/ FG.   And I discovered what many already knew:  unlocking the rate of 60FPS-fg, so wide open, in many spots now the other artifacts associated w/ FG are 90% GONE as well.   So now I am able to run at 60FPS-fg at the very least, on up as conditions permit.   The higher the FG rate, the lower the artifacts in general.  At EIDW just a bit ago in the Fenix 320CFM the wide open rate with lots of FSLTL static and moving AI traffic, was around 92FPS-fg.  At KTEX last noc in the AS CRJ550, the wide open rate was 128FPS-fg.  And in general these artifacts, the strobe/flicker I can't tolerate, have been reduced some even w/ the rate is 60FPS.  And here is what is just mind-blowing:  it's typical to have essentially zero stutters anywhere now, not a one.  Taxiing around EIDW making sweeping turns with 2 or 3 AI traffic moving in my view not a hint of a stutter, it's just amazing!   Once I'm up in the air away from where FG related artifacts are most troubling, I simply hit an assigned key to relock the frame rate to 60, and it's essentially no different save power/temps drop bigtime.

To add more the sharpening hack from NV along w/ running Render Scale at 140 makes everything as sharp as it can get.  It really feels...perfect, in terms of performance now.  Even those scenery loading related slight hesitations are largely gone now as well.  So in short, 2024 is running better than any sim in my history of FSing and 'performance' concerns are 100% absent here.

Mega KUDOs and thanks to MS/Asobo for getting 2024 to this point!

Multiplayer, although it has improved a little.

40 minutes ago, kerosene31 said:

Again, the sim fully supports it, but I think the developers turn it down to appease a wider audience.

I don’t know if the SDK allows for 3rd party to simulate icing correctly?  I do know the way it’s currently simulated in default aircraft doesn’t seem to be realistic … so far, the times icing has been encountered the aircraft just loses power and I end up descending to a specific altitude and I regain power … no stall, nothing else, just engine power drops.  

I think leaving icing up to the 3rd party developer would be the best approach as each aircraft reacts differently to ice conditions … sooo, I’m hoping the SDK provides aircraft developers with hooks they need to simulate more realistic icing that doesn’t push their development costs significantly higher.

13 minutes ago, SayAgain said:

I don’t know if the SDK allows for 3rd party to simulate icing correctly?  I do know the way it’s currently simulated in default aircraft doesn’t seem to be realistic … so far, the times icing has been encountered the aircraft just loses power and I end up descending to a specific altitude and I regain power … no stall, nothing else, just engine power drops.  

I think leaving icing up to the 3rd party developer would be the best approach as each aircraft reacts differently to ice conditions … sooo, I’m hoping the SDK provides aircraft developers with hooks they need to simulate more realistic icing that doesn’t push their development costs significantly higher.

Again, note what Matt (of Working Title) said: https://www.avsim.com/forums/topic/679134-what-is-still-lacking-for-you-in-fs2024-since-su3/page/7/#findComment-5567406

"Icing has a measurable aerodynamic effect, which can be easily seen through the dev mode debug, has tuning parameters in the flight model for developers to use, and can absolutely make you fall out of the sky, cause pitot failures, etc."

What particular default aircraft have you tried?, perhaps those ones are not taking advantage of what's available in the SDK and core FDE. In any case, the hooks are there in the FM/SDK for 3rd party devs to use.
 

Edited September 4, 2025Sep 4 by lwt1971

2 hours ago, HiFlyer said:

 

Well that didn't take long to find haha

9 minutes ago, lwt1971 said:

In any case, the hooks are there in the FM/SDK for 3rd party devs to use.

Excellent, so 3rd party have no excuses 🙂  

Default MSFS 2024 Aircraft I tested with:

• Cessna 172 
• Airbus A320neo 
• Pilatus PC-24
• Cessna 208B 
• TBM 930 

 

Most aspects of MSFS24 have already been covered in this thread but I’m puzzled as to why birds aren’t present natively in the sim when using fauna. Bit odd for a flightsim. 

3 hours ago, kerosene31 said:

The biggest FPS hit I get is flying into the KLAX addon (Is it inibuilds? forget who makes it) with traffic.  My fps can drop into the 50s and even the occasional 40s, but it is still relatively smooth.

KLAX kills FPS regardless of sim / scenery ! 😁

41 minutes ago, SayAgain said:

I don’t know if the SDK allows for 3rd party to simulate icing correctly?  I do know the way it’s currently simulated in default aircraft doesn’t seem to be realistic … so far, the times icing has been encountered the aircraft just loses power and I end up descending to a specific altitude and I regain power … no stall, nothing else, just engine power drops.  

I think leaving icing up to the 3rd party developer would be the best approach as each aircraft reacts differently to ice conditions … sooo, I’m hoping the SDK provides aircraft developers with hooks they need to simulate more realistic icing that doesn’t push their development costs significantly higher.

I remember having the default SR22 fall out of the sky due to icing in the early days of 2020.  The windshield was completely covered and with no anti-icing, I was a flying brick.  (maybe I can still find the screenshot).  

I never saw icing like this again in the sim.  Now I think it is 99% visual and not doing anything, but it was there at one point.  

It is kind of like thunderstorms too.  At one point we had little in the way of thunderstorms.  Then, we had an update where suddenly every cloud in the sky was a thunderstorm regardless of conditions.  I remember in a northeast US winter, every cloud was a thunderstorm.  So, they just turned the dial way down again and now we're back to not having thunderstorms much again.  

I don't know how much of it is sim limitation, but I feel like more they struggle to get the balance right and make everyone happy.  

22 hours ago, SayAgain said:

Interesting … I thought it was just me getting it wrong.  Do you have any specific airports that are obviously way out so I can confirm what I’ve experienced in others?  Are the default airports or 3rd party?

I can't name all the airports but LGSK Skiathos is one amongst many. I would guess about 30% of all the ones i've flown at least during my simming in FS20 / 24

I'm in 2024 exclusively now.  The only things I am missing are the PMDG 737s and a handful of sceneries Technobrain RJBB, Flytampa Corfu, Tahiti Fa'aa (which was word not allowed to begin with) please inibuilds make a NTAA as good as Nadi.  I have also noticed a lot of "MSFS2024 compatible" sceneries with trees, roads or water covering taxiways and some strange little issues. 

 It's taken me about a week to get it to a state where I could delete MSFS 2020.

I have almost every major addon and 97% of them work.  Fenix A32X, iFly B38M , Carenado GA stuff (182 RG, 207, 210, PA-28), FSS E175/E190/727/P2012.  FSL A321neo, PMDG 777s, Captain Sim 717, Horizon-Sim 787-9, Kuro 787-8, Headwind A339, FBW A380,  (although I would argue it has some sort of strange memory issue in FS24.) ini A350 the list goes on.

People say the PMDG 737s work "oh I've flown it X number of hours with zero issues", but they don't fully work.  You can fly them, but you have to be careful with your keyboard controls, the transponder does not work, EFB glitches out, and for ME I had freezes and WASM issues constantly. So after reading the PMDG offical stance on the PMDG 737 I believe I will wait until its 100% FS2024 supported.

The thing I was excited about in FS2024 was AG and firefighting ops. But I don't like video games and the licence, grind, buy, grind, licence buy grind bs.   I just wanna jump in the C188 or AT802 and spray some chem trails over some corn. So' I'm dissapointed there arent just Quick Start missions. 

Overall, clouds are better, photogammetry is better, phototiles are shaprer, watermasks are better, I really like the vegetation and AI generated rock, it's really nice for bush flying.  The rest is only about as good as 2020. One thing I don't like are the wierd DLSS and Fram Gen issues.  I hate how the water morphs, the ground morphs and objects moving also look blurry, including your own plane and clouds.  TAA does not seem to fix it.  But the frame rate is good so I live with it.

 

Edited September 4, 2025Sep 4 by aniiran

6 hours ago, UrgentSiesta said:

KLAX kills FPS regardless of sim / scenery ! 😁

Thats when I turn on the Dynamic Setting.

dd

So if i read this thread i think i never go over for MSFS2024 !! 🤔

cheers 😉

Edited September 5, 2025Sep 5 by pmplayer