[Request] Reduce/change cockpit shaking

I'm going to go out on a limb and say that, in the sim, the current transsonic vibration is a bit violent.

Even shortly after it starts it becomes very difficult to read instruments, and you can forget about aiming anything. (It reaches these levels as low as M0.65 with certain loadouts) For it to have the same effects in real life the shaking would have to be really bad. Saturn V levels of bad. I think it would make sense to put a cap on how bad they can get to make it more of a useful warning buffet before reaching Mach tuck, as opposed to a brutal punishment for going M0.2 too fast. At the very least, I'd make the animation a bit less sharp and nauseating to look at...

If anyone knows why the shaking happens (and if it should be effected by stores as it currently is) on the real plane I'd be happy to listen. I'm aware this is one of many "I feel it should be different" posts

(Sorry not sorry for spamming the Su-25 forum section, I'm starting to like it a lot)

Yeah, so I recently did a bit of research and I'm 90% sure the shaking mechanic should be changed.

The transsonic buffet is just that, buffet. Not a violent, high frequency vibration. It's caused by air separation on the wing that is initiated by a shockwave. The turbulent air hits the horizontal stabilizer and shakes the aircraft. This also leads to reduced elevator authority and contributes to Mach tuck.

This means:

A. It should be a lower frequency, less violent vibration than we have now. Closer to the buffet you get when stalling the A-10.

B. Not totally sure on this, but I don't think it should be effected by stores as much as it is now. The primary source of buffet is separated airflow coming from the top surface of the wing hitting the stabilizer so underwing stores probably won't have a massive effect on when the buffet starts. (ie the vihkr pods severely reduce the Mach number at which you start shaking)

I'd always assumed the shaking was due to turbulence from the weapons as opposed to mach buffet.

What ever it is the effect is terrible and gives headache and you can even experience it when taxiing...

Problem is that the plane its self is not shaking, it is just a camera effect

As noted, it's the weapons ( "It reaches these levels as low as M0.65 with certain loadouts" ), but maybe (just maybe) the problem principal problem is not that it's rendered badly, it's that you're continuing to fly the aircraft outside of its designed flight envelope with the loadout you have.

Definitely doing above M0.65 while taxiing :lol:

Definitely real. The shaking stops as soon as they leave the ground.

What ever it is the effect is terrible and gives headache and you can even experience it when taxiing...

 

Problem is that the plane its self is not shaking, it is just a camera effect

The shaking on ground during taxiing is very unrealistic mainly due to the way too high frequency.

It feels exactly like a tire failure IRL!

The shaking is realistic. And when a plane shakes you cannot read the instruments very well in real life.

The shaking is realistic. And when a plane shakes you cannot read the instruments very well in real life.

Again, it's the high frequency that makes it unrealistic. The shaking is being caused by the runway/taxiway bumps IRL, hence it occurs at a low frequency.

If the shaking occurs at such a high frequency as in the DCS Su-25 it means that you have a tire failure, or at higher speed a shimmy damper failure, at least IRL.

In both cases this has nothing to do with the ability to read the instruments.

Definitely real. The shaking stops as soon as they leave the ground.

 

Shaking in general, and the occasional thump is real, yes. But taxing at low speed, no, the cockpit is not violently shaking in that video, even on crappy Russian roads they're not THAT rough. The shaking in DCS is extremely aggravating on this aircraft

Shaking in general, and the occasional thump is real, yes. But taxing at low speed, no, the cockpit is not violently shaking in that video, even on crappy Russian roads they're not THAT rough. The shaking in DCS is extremely aggravating on this aircraft

The shaking is probably realistic, what is not realistic in Su-25A and T is that the whole camera shakes even with little vibrations, this creates an exaggerated unrealistic effect. The solution would be to have only the cockpit shake and leave the eye positioned camera stable and shake the camera only when vibrations are very strong.

I believe this is how it is modeled in newer aircraft. However I highly doubt anything will be done about it for Su-25, there are bugs which were reported and acknowledged five years ago and were not addressed. Like cockpit frame bug, reversed engines, CCRP mode problems, Su-25T autopilot, etc. There is even a rumor that the whole 3D model of the Su-25A has been lost, so no changes possible... it is really sad...

They said a few months ago after the updates for A-10 and Ka-50 are done, the frogs are due for a look. The presence or absence of the original model is irrelevant, as any update would be either textures (no model required) or total (model is canned and replaced).

Zhukov I hope you are correct! I would love to see some updated frogs.

Yeah it's nowhere near Mach 1 when that happens. And if you expend or jettison your weapons it goes away. Just reduce throttle to 90-95% RPM and it won't happen. It's a feature, not a bug. (And I think it's reasonable in the amount, it doesn't really inhibit you from doing anything. Buffeting *is* fairly high frequency.)

This is still an issue. I'm okay with it when flying (don't fly a heavily loaded jet too fast), but on the ground its really bad.

I note that it is worse on Syria than other maps and this may be tied to how the ground surfaces are modelled.

Either way, it would be great to see an overall reduction in shake during taxi.. or at least an option to turn it down (much like the Gazelle) in the options menu.

Sorry to dig this up again, but it bothers me too. It's not, that the shake exist, more like how its effect is shown.

If i observer it correctly, the "cockpit" shake in the SU25T is applied to the "view" of the pilot, which makes it so irritating (especially when using track IR, probably even worse in VR).
It should be more like in the Mi8 or Huey, where the actual cockpit is shaking and not the view. I think it should be changed.