2 hours ago, abrams_tank said:

Nice! I wasn't aware that Blackbox was testing these enhancements!  And I'm sure the 3rd party developers will take advantage of these new settings soon.

I hope Asobo doesn't take forever to apply this to all default aircraft.

Asobo rarely seems to update the flight characteristics of the aircraft they had a direct hand in. Like in 2020 they only ever touched C172 G1000 when adding new flight model features.

and any of the ones made by their third party partners, they’d need to be requested by Microsoft 

Edited September 21, 2025Sep 21 by Tuskin38

On 9/19/2025 at 10:25 AM, jcomm said:

Now they just need to fix mixture vs FF in the reciprocating aircraft 🙂

This actually has already been addressed on the sim side in SU13 for MSFS 2020. An option for volumetric fuel flow was added in engines.cfg, and developers can enable it to prevent the old behavior where fuel flow *increases* when leaning the mixture at altitude. Very few developers have taken advantage of the new option, but it's there. Asobo has been wisely implementing changes like this on an opt-in basis (developers need to explicitly enable them in the cfg files). That way, the changes won't break any existing code which developers have written to work around old bugs.

Edited September 23, 2025Sep 23 by Marc Collins
Wrong sim update number

@Marc Collins, thank you for that precious info and clarification.

It's very good to know 👍

Actually now that you mention it I think I recall something along msfs2020 but I had forgotten about it 🥴

I agree regarding ASOBO's strategy. In the early days of MSFS 2020 I noticed the max roll rate of fixed wing aircraft was still throttled, making the modeling of aerobatic and military aircraft not that accurate when it comes to really fast roll rates, like in an Extra 300.

After pointing this out at the forums they fixed it in one of teh SUs, and since then MSFS and now FS 2024 provide aircraft model developers the chance to accurately model such features.

Edited September 23, 2025Sep 23 by jcomm

On 9/23/2025 at 9:52 AM, Marc Collins said:

This actually has already been addressed on the sim side in SU13 for MSFS 2020. An option for volumetric fuel flow was added in engines.cfg, and developers can enable it to prevent the old behavior where fuel flow *increases* when leaning the mixture at altitude. Very few developers have taken advantage of the new option, but it's there. Asobo has been wisely implementing changes like this on an opt-in basis (developers need to explicitly enable them in the cfg files). That way, the changes won't break any existing code which developers have written to work around old bugs.

As these new configuration variables for the flight dynamics of MSFS 2024 are added, I think over time, the 3rd party developers will get a handle on how to best use these new configuration variables, and the future flight model of planes in MSFS 2024 should keep improving.

It kind of reminds me of how consoles work.  The first batch of games for a new console may not really get the most out of the console.  But by the end of a console's lifespan, the 3rd party developers have figured out how to squeeze everything they can out of that console.  For some of these new configuration variables for the flight dynamics added by Asobo today, most of the 3rd party developers will probably have figured out how to best use it within a few years.

Edited September 24, 2025Sep 24 by abrams_tank

I'm honestly surprised that the new inertia implementation in SU4 hasn't been given more scrutiny. You hear people talking about the flight model all the time but now it's gotten a significant upgrade, no one apart from BB seems to care lol

7 hours ago, Krakin said:

I'm honestly surprised that the new inertia implementation in SU4 hasn't been given more scrutiny. You hear people talking about the flight model all the time but now it's gotten a significant upgrade, no one apart from BB seems to care lol

I guess probably because it's only implemented on the Cessna 172 and the Extra 330 aircraft as of now. Like mentioned before, really hope Asobo start implementing these new capabilities/changes on the rest of the default fleet, and also we'll have to await 3rd party aircraft devs to start adopting the new FM features and parameters. As also stated above, I totally get why Asobo would roll these out as "additive" changes so as to not break aircraft highly configured to the existing FDE.

P.S. Checked out https://devsupport.flightsimulator.com/ and great to see Andrey Petrovich in the mix working on these flight dynamics aspects of the sim 🙂 
 

Edited September 29, 2025Sep 29 by lwt1971

1 hour ago, lwt1971 said:

I guess probably because it's only implemented on the Cessna 172 G1000 version and the Extra 330 aircraft as of now. Like mentioned before, really hope Asobo start implementing these new capabilities/changes on the rest of the default fleet, and also we'll have to await 3rd party aircraft devs to start adopting the new FM features and parameters. As also stated above, I totally get why Asobo would roll these out as "additive" changes so as to not break aircraft highly configured to the existing FDE.

P.S. Checked out https://devsupport.flightsimulator.com/ and great to see Andrey Petrovich in the mix working on these flight dynamics aspects of the sim 🙂 
 

I didn't realize the Extra 330 had been beefed up - is it also a "Reference Model" addon for Asobo (as with the Cabri)?

1 minute ago, UrgentSiesta said:

I didn't realize the Extra 330 had been beefed up - is it also a "Reference Model" addon for Asobo (as with the Cabri)?

Good question, didn't think it was a reference model like they normally treat the C172 and Cabri. But in https://forums.flightsimulator.com/t/sim-update-4-beta-1-6-3-0-release-notes-september-8th-2025/737331 they mention it along with the C172 as the ones that got the inertia related improvements.
 

7 hours ago, Krakin said:

I'm honestly surprised that the new inertia implementation in SU4 hasn't been given more scrutiny. You hear people talking about the flight model all the time but now it's gotten a significant upgrade, no one apart from BB seems to care lol

I think it's just that the FM/physics is a constantly moving target (which is a good problem as it really means the physics are constantly improving).

I remember the SWS devs lamenting even back in the v2020 days that they never knew how their Kodiak was going to fly after every update 😮

I'm sure that situation has only been exacerbated with the changes enforced by v2024.

Hopefully we'll see devs take the tack of Just Flight, who seem to have fundamentally re-defined how they define flight models & physics in v2024. And credit to iniBuilds, who (outwardly) seem to be frequently tapping those new capabilities.

6 minutes ago, lwt1971 said:

Good question, didn't think it was a reference model like they normally treat the C172 and Cabri. But in https://forums.flightsimulator.com/t/sim-update-4-beta-1-6-3-0-release-notes-september-8th-2025/737331 they mention it along with the C172 as the ones that got the inertia related improvements.
 

I will look into this as it’s be great to have a High Performance plane like this get the Reference treatment. Particularly since it’s a taildragger!

17 minutes ago, UrgentSiesta said:

'm sure that situation has only been exacerbated with the changes enforced by v2024.

most changes these days are optional specifically for that reason, not breaking existing aircraft.

For example the new ground physics model in 2020 (which was adapted from some 2024 code), they originally were going to force on for all aircraft, but decided not to.

19 hours ago, lwt1971 said:

P.S. Checked out https://devsupport.flightsimulator.com/ and great to see Andrey Petrovich in the mix working on these flight dynamics aspects of the sim 🙂 
 

Nice catch! Petrovich has done some good work on MSFS 2024!  I'm sure he is a major contributor in improving the flight model, and that's why the flight model in MSFS 2024 has improved so much!

Indeed! Having Petrovich in the MSFS dev team is, at least for me, a huge guarantee of coherence / consistency.

But we have to be patient because they're dealibg with bugs/ limitations inherited from decades of MS FS!!!

I find, for instance, the best helicopters I tried, with a bi thumbs up for the Taog's Hangar creations really up to the level of XP or even DCS, but not being and expert (far from that) in rotary wing flight dynamics my oppinion is what it is.. an oppinion from a simmer who likes to play helis in flight simulators...

On 9/29/2025 at 3:35 PM, UrgentSiesta said:

I didn't realize the Extra 330 had been beefed up - is it also a "Reference Model" addon for Asobo (as with the Cabri)?

Probably in preparation for the Red Bull air races... I vaguely remember Jorg mentioned in a past livestream that Red Bull wanted real Extra pilots to test the planes and races before Asobo released that activity within the sim.