Jump to content

Sign in to follow this  
AviatorMan

The Physics Model

Recommended Posts

I have seen a number of references in this forum noting that the "physics model" of MSFS2020 is inferior to that of P3Dv5.  Just curious how we know this?


My system specs: Intel i9-10850@3.6 - 5.2 GHz, NVIDIA GeForce RTX 3080, 32GB  DDR4  RAMNoctua NH-D15 CPU Cooler,1TB Seagate SSD, 4TB Seagate HD, Windows 10.     Sims: MSFS2020      Preferred Aircraft JF Arrow. Nothing much else GA to choose from. 

Share this post


Link to post
Share on other sites

Here we go . . .

  • Like 7

Intel Devil's Canyon 4790K@4.6, EVGA 1080 Ti Gaming OC, 16 GB 2300Mhz and a bunch of SSD's to run it all. And wings.

Share this post


Link to post
Share on other sites

LOL, good question. Now how about X-Plane? I read something about that too!


Cheers, Bert

Intel i7-4790K, 8 GB RAM, MSI GTX 970, Windows 10 Home 64 bit, MSFS

Share this post


Link to post
Share on other sites
Posted (edited)
28 minutes ago, AviatorMan said:

I have seen a number of references in this forum noting that the "physics model" of MSFS2020 is inferior to that of P3Dv5.  Just curious how we know this?

Depends what you mean by physics model. If you mean the flight modeling system, then the answer is nope, it isn't inferior, since it is capable of using the old ESP flight model system which is what P3D essentially uses, and it has its more modern system as well, with either of these being a selectable optional choice.

Beyond this, it's due a considerable update to the flight modeling physics fairly soon which will definitely put this beyond any doubt as to which is superior in terms of modeling flight and air mass reaction, being that it will leave behind the look up chart stuff of the older system in favour of a much more complex and realistic system.

But you might also mean the particle physics, which at present are not in MSFS (with the exception of contrails), however, this too is due for addition (in the next update in a week or so), with this being included in the SDK too and with expansion of that capability ongoing. P3D does have some particle effects, as did FSX, but this is graphically limited because of the engine it uses, which is why you don't see a ton of complex particle effects going on in it, although in fairness, the TrueSky stuff in P3D does redress this somewhat, but it's far from perfected in terms of GPU usage.

That's the facts, but when has that ever stopped people lol, so stand by with your popcorn for this topic to head for thread lock city at top speed, as people argue it regardless, in five, four, three...

Edited by Chock
  • Like 16
  • Upvote 2

Alan Bradbury

Check out my youtube flight sim videos: Here

Share this post


Link to post
Share on other sites

IMO there are only two types of people who can know this: those who work at Asobo and possibly real world pilots who have been using both simulators. Everyone else is just using their gut feeling, with a dose of prejudice, expectations, hate and hope thrown in there as well.

  • Like 10

Flightsim PC:
AMD 3900x (stock) with Scythe Mugen 5 cooler | MSI X570 MEG Unify | 32GB G.Skill Trident Z Neo F4-3600C16D-32GTZNC
Gigabyte Aorus Master RTX 3090 | 2x XPG SX8200 Pro 2TB Nvme SSD | Corsair RM850x PSU | Fractal Define 7 XL case
Output: Acer Predator x34 3440x1440 Gsync | Logitech Z906 speakerset
Controllers: Wooting 2 keyboard | Logitech Mouse | Fulcrum One Yoke | MFG Crosswind 3 pedals | CH products Throttle Quadrant | Stream Deck XL

Share this post


Link to post
Share on other sites

Tonic toxic topic

  • Like 1
  • Upvote 1

Dominique

Simming since 1981 -  4770k@3.7 GHz with 16 GB of RAM and a 1080 with 8 GB VRAM running a 27" @ 2560*1440 - Warthog HOTAS - MFG pedals - MFS Standard version with Steam

 

Share this post


Link to post
Share on other sites

Having never flown a real plane in real life I can tell you the physics are 101% correct, including the Spitfire which I've never flown but from having watched tons of WWII Movies it looks right so it must be right.









/tongue firmly in cheek

  • Like 12
  • Upvote 3

HP Reverb G1 - Windows 10 64bit, Gigabyte Auros Pro Mobo, i9-9900k CPU, Gigabyte 2070Super GPU, 32gig Corsair 3600mhz RAM, SSD x2 + M.2 SSD 1tb x1

Saitek X45 HOTAS - T300 Steering Wheel - G25 Pedals (modded springs) - SHH Shifter - Homemade 3 Button & 8-directional Joystick Box, SNES Controller (used as a Button Box - Additional USB Numpad (used as a Button Box)

Share this post


Link to post
Share on other sites
Posted (edited)
34 minutes ago, AviatorMan said:

I have seen a number of references in this forum noting that the "physics model" of MSFS2020 is inferior to that of P3Dv5.  Just curious how we know this?

A poster named noballer08, with a possible background in aerospace engineering over at the official MSFS forums dug into the SDK to determine exactly what the flight model was:

https://forums.flightsimulator.com/t/modern-flight-model/232844/3

My guess is, noballer08 has some type of background in aerospace engineering (at least noballer08 seems to have a good grasp on the math/physics/engineering behind aerodynamics). Anyways, if you think noballer08 did a good analysis of the flight model, this is noballer08's initial impression is of the flight model:

  Quote
  Quote

But, just at first glance, it looks like a really good flight model. Accomplishes the same geometrically-dependent aerodynamic loads that XPlane does with it’s BET/wing-strip method, albeit with more resolution. Definitely the SDK needs much better organization, and the flight model as a whole probably needs additional corrections (such as for compressibility).

https://forums.flightsimulator.com/t/modern-flight-model/232844/11

Edited by abrams_tank

i5-9400, GTX 1660 Super, 24 GB RAM

Share this post


Link to post
Share on other sites
1 minute ago, MarcG said:

Having never flown a real plane in real life I can tell you the physics are 101% correct, including the Spitfire which I've never flown but from having watched tons of WWII Movies it looks right so it must be right.

There is clearly a massive career ahead of you as the most authoritative interwebs reviewer of flight sim stuff ever with these impeccable and peerless credentials. All of these people with youtube channels claiming to be real pilots can do nothing, but bow before your might.

And I'll fight any man in the room who says otherwise. 🤣

  • Like 4

Alan Bradbury

Check out my youtube flight sim videos: Here

Share this post


Link to post
Share on other sites
3 minutes ago, Chock said:

There is clearly a massive career ahead of you as the most authoritative interwebs reviewer of flight sim stuff ever with these impeccable and peerless credentials. All of these people with youtube channels claiming to be real pilots can do nothing, but bow before your might.

And I'll fight any man in the room who says otherwise. 🤣

I'm bigger than YouTube!

  • Like 1

HP Reverb G1 - Windows 10 64bit, Gigabyte Auros Pro Mobo, i9-9900k CPU, Gigabyte 2070Super GPU, 32gig Corsair 3600mhz RAM, SSD x2 + M.2 SSD 1tb x1

Saitek X45 HOTAS - T300 Steering Wheel - G25 Pedals (modded springs) - SHH Shifter - Homemade 3 Button & 8-directional Joystick Box, SNES Controller (used as a Button Box - Additional USB Numpad (used as a Button Box)

Share this post


Link to post
Share on other sites

Only "Q" can answer this question 😎

Richard.

  • Like 1
  • Upvote 1

Richard Portier

MAXIMUS VI FORMULA|Intel® Core i7-4770K Oc@4.50GHz x8|NVIDIA GeForce GTX 1080ti|M16GB DDR3|Windows10 Pro 64|P3Dv5|AFS2|TrackIr5|Saitek ProFlight Yoke + Quadrant + Rudder Pedal|Thrustmaster Warthog A10|

Share this post


Link to post
Share on other sites

I can't wait for P3D wanna be "serious simmers" to hijack this thread 😄 

  • Like 1
  • Upvote 1

i9-9900K OC 5.0ghz, 32GB DDR4 3600 RAM, RTX 2080Super 

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.


    48%
    $12,180.00 of $25,000.00 Donate Now
×
×
  • Create New...