About PFM implementation

[mojiao]

Aircraft PFM is implemented according to CFD or value table, the forum does not seem to have any description. What is one way to explain the irrational behavior of planes in the game? (It will be better if there is an official team to answer it)

[Weta43]

Your question is like someone asking "how long is a piece of string ?"

It's impossible to answer without providing more background and detail to the question.

If you want some answers you'll have to give examples of what (precisely) do you think is irrational about the behaviour of the planes.

You'll also want to give an explanation of why you think that behaviour is irrational - preferably with some real life documentation that demonstrates the behaviour in game isn't as it should be in real life.

Lastly you'll want to provide a track where the behaviour you believe is irrational is exhibited.

Until you expand on your question and provide examples,  no one will know what you're talking about, and if they don't know what you're talking about they can't provide answers.

[mojiao]

1. Although I don't have wings, I can still fly, or I am a rocket.

2. Can the maximum speed exceed Mach 1 when the wings are folded? (I don't know what the reality is, but does this make sense?)

Will the above situation occur in the case of CFD real-time calculation? That's my question

2小时前，Weta43说：

Your question is like someone asking "how long is a piece of string ?"

It's impossible to answer without providing more background and detail to the question.

If you want some answers you'll have to give examples of what (precisely) do you think is irrational about the behaviour of the planes.

You'll also want to give an explanation of why you think that behaviour is irrational - preferably with some real life documentation that demonstrates the behaviour in game isn't as it should be in real life.

Lastly you'll want to provide a track where the behaviour you believe is irrational is exhibited.

Until you expand on your question and provide examples,  no one will know what you're talking about, and if they don't know what you're talking about they can't provide answers.

1. Although I don't have wings, I can still fly, or I am a rocket.

2. Can the maximum speed exceed Mach 1 when the wings are folded? (I don't know what the reality is, but does this make sense?)

Will the above situation occur in the case of CFD real-time calculation? That's my question

Edited May 1, 2022 by mojiao

[draconus]

You can read about the PFM definition here:

https://www.digitalcombatsimulator.com/en/support/faq/general/

and abot FM development here:

 

Please notice that folded wings on the Hornet still leave 2 thirds of usable wings area and it is also not the whole lifting area available for the aircraft so while it does have big impact on slow speed handling I don't see how that would prevent from reaching 1M.

More info is needed for #1 as "flying" definition can be different for one and jets have much in common with rockets too.

You failed to shock us with your findings, sorry.

[Dragon1-1]

If the first pic is from MP, then it might be damage desync. This happens sometimes, and is sadly inevitable when physical damage calculations are done on a machine physically distant from the one calculating visual damage.

As for folded wings, IRL the wingtips might rip off completely at transsonic speeds (they're not designed to break the sound barrier in this state, so the hinge may fail), but the aircraft will fly... until you slow down, that is, where you'll find out why the Hornet was designed with a wing this big.  That said, it's got low wing loading and lack of payload will give you a lot of margin, so it's likely to remain at least somewhat flyable. 

[mojiao]

1小时前，Dragon1-1说：

If the first pic is from MP, then it might be damage desync. This happens sometimes, and is sadly inevitable when physical damage calculations are done on a machine physically distant from the one calculating visual damage.

As for folded wings, IRL the wingtips might rip off completely at transsonic speeds (they're not designed to break the sound barrier in this state, so the hinge may fail), but the aircraft will fly... until you slow down, that is, where you'll find out why the Hornet was designed with a wing this big.  That said, it's got low wing loading and lack of payload will give you a lot of margin, so it's likely to remain at least somewhat flyable. 

The first picture is the result of local operation. When the wing breaks and turns uncontrollably, the flight can become smooth after trying to operate the tail rudder. (you can try) so my question is whether it is reasonable to adjust the tail rudder to smooth the flight of an aircraft without wings?

[Dragon1-1]

In general, no, although it's possible you found a bug. If you can get it to happen consistently and post a track on how you did it, ED will likely take a look. This doesn't normally happen. 

It is also possible that you merely get stabilized, not under control. That might happen. Without wings, the airplane's aerodynamics resemble a big lawn dart, or indeed, a rocket. This configuration is very stable, in that it'll always attempt to point along your flight path vector. The fuselage provides limited lift, and the all-flying elevators have plentiful authority even in this situation (at high speeds, you're basically a huge missile, and they're controllable), so it might happen that you can exert some control over your crash site. It shouldn't really be flyable in a meaningful way, but it wouldn't be completely out of control.

Edited May 1, 2022 by Dragon1-1

[mojiao]

3小时前，draconus说：

You can read about the PFM definition here:

https://www.digitalcombatsimulator.com/en/support/faq/general/

and abot FM development here:

 

Please notice that folded wings on the Hornet still leave 2 thirds of usable wings area and it is also not the whole lifting area available for the aircraft so while it does have big impact on slow speed handling I don't see how that would prevent from reaching 1M.

More info is needed for #1 as "flying" definition can be different for one and jets have much in common with rockets too.

You failed to shock us with your findings, sorry.

There is such a passage (If such graphs are available, there is no problem to convert TAS (V in this source) to Mach number
for each altitude and then use it directly for SFM or to use it as a reference for our thermodynamic
model for PFM using either Mach or TAS directly.), can I understand that the game only uses the CFD calculation results instead of using CFD real-time calculation?

[draconus]

5 hours ago, mojiao said:

...using CFD real-time calculation?

You're serious? Or do you have some spare computing cluster?