I understand, so power/trust/ or horsepower, is not relevant to the real physics of our FS2020 equations, only the bottom line numbers of the input and output of user perception of the term POWER under the given Dollar Equestion of your ideas. right?
Please show me, how you fly the same MACH speed with the same power settings in different weights.
If you can show me different power settings it means the questions is taking into consideration the weight of the aircraft. Right?
First, you need to slow down. You’re misinterpreting things people are saying. What he said was, the units you use don’t matter. The terms you use do matter.
Thrust is force, power is force * velocity.
And the answer to your question is, yes, MSFS is using aerodynamic equations that take all forces into account to calculate the total lift of the body and make sure all forces sum to zero at any given moment through an iterative process.
It uses lookup tables for lift coefficients of various surfaces in various conditions (close to the ground, mach speed, etc), and it initially calculates at the start of the game a set of 20 aircraft configurations and lifts for all surfaces, then interpolates a lift for each surface for the actual flight surface configuration from the original 20 initial configurations, and then uses these lift coefficients in aerodynamic equations to calculate the lift of each surface, sums that across the whole body, and then iterates these equations until all the forces are zero.
You paid for a full simulator. That still needs some work.
“Engineering is the art of modelling materials we do not wholly understand, into shapes we cannot precisely analyse so as to withstand forces we cannot properly assess, in such a way that the public has no reason to suspect the extent of our ignorance.”
- Dr. AR Dykes
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If they don’t talk about it in the SDK, you conclude that they are wise to include it in the power/life/drag/weight equations? Do you want me to prove otherwise?
Please stop, and read the SDK. It’s all available to you. Turn on developer mode in the options, download the SDK, and you’ll get the written SDK including the flight model discussion I’ve been posting excerpts from at your own leisure. There’s no way I’m posting all the equations and calculation methods they discuss.
Thank you, I am very happy to learn physics together with you, I am always open to new equations.
Can you show me please how do I fly a MACH speed of 0.8 with 40 Tons total weight but with less power, not like flying the same speed with more weight with the same power settings?
A demo of video will be very important for all of us, so we can see real live FS2020 physics in action.
Thank you very much for your contribution.
Do I need to read the SDK, for a simple video demo of power settings at 40 tons weight for 0.8 Mach?
or do I need to study hard equations instead of just looking at the trust levels for different weights?
That’s what I said.
And then they explicitly say they use a look up table for downwash.
They’re not looking at the interaction of airflow from one surface to the next like MSFS is doing.
Dear FlyingsCool, Thank you very much for your contribution.
Reading the SDK doesn’t prove the working of the equations like testing them in live FS2020 execution of algorithms, meaning putting the simulator into action, and seeing for yourself.
If you please you can make it easy for all simple users like me, not to work hard on reading SDK equations, but rather putting the simulator into flight and seeing for yourself if Weight is taken into consideration while flying at 0.78 Mach.
If the Trust setting change due to weight, you can conclude the weight is taken into consideration of the equations running the simulator, right?
Thank you once again for making my life easier to understand your SDK live physics.
Stall speed, pitch attidude, speed, required thrust for a certain speed, everything changes with weight.
That’s obvious since there are numerous complaints about a lack of performance when it turns out that it’s simply the weight which is too high for a certain cruising altitude.
Approach speed also noticeable chanes with weight.
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These downwash equations are very complex? right?
Do they apply on Jet engines with different weights? compared to the 1000 points of the matrix for calculating the high degree of mathematics, making simple calculations of weight/lift/trust/drag, is much easier than all those equations for the 1000 points of measuring and the CFD files. Right?
So why does the aircraft stall at the same speed? or why does it fly at the same speed with different weights? Do I need to study physics right from the beginning in order to improve on my terms while flying FS2020?
Yes, I always want to improve, while flying simple toys is FS2020 or X-Plane physics.
I would pay even more.
All wrong. Have you done stall tests at all?
If the weight is taken into consideration, then why does the aircraft fly with the same trust at any speed with different weights?
Technically, the physics in MSFS seem to go deeper and more complex than X-plane. Which makes sense since X-plane was first developed 15 years ago when computers were much slower.
Downwash? I don’t understand the point of your question. Look, you’ve got an obvious agenda, there’s not much more I can answer for you. You already have the answer you want, and coming here was never going to change that for you. Go have fun in X-plane. MSFS will get better over time.
If you’re really interested in flying a 787, I’d go get your hands on some technical manuals for it and read up.
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How complex is it to compute the influence of weight on the speed with different trust settings?
Why do you see any agenda here? it is a simple physics experiment in FS2020, don’t you think so?
Please stay focused I didn’t talk about SDK equations, just simple high altitude flying with different weights.
If you are convinced I have an agenda, then show me a video, how the trust settings change due to different weights in order to maintain the same speed. Please. Thank you.
Please show me, Take the 787 or 747 or any jet, fly at FL300, and change the weight of the aircraft, and check if the trust settings remain the same. while maintaining the same speed.
It definitely doesn’t.
Just tested with the 787-10 and @ 4000ft and 250kts I get these values;
557000lbs +4.5° pitch, 44% N1
457000lbs +2.5° pitch, 41% N1
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Now check it at FL300, Please. Tell me if you the trust setting are the same or different. Thank you.
In Addition the Fuel Flow should be different, not the same.
This request makes zero sense. Performance obviously changes with weight.
Why should MSFS take weight into account at 4000ft, but not at 30000ft?
Right, it should not be different, but check it for yourself. And check the Fuel Flow too.
That is also part of the Equations influenced by Weight.