About those wingtip vortices & engine smoke ...

[K2mil]

These effects are nice add ons. I really don't care how realistic they are, there are more important things in DCS I care more about.

[=Mac=]

I would love to see exhaust and wheel smoke on my planes. I would love to see low pressure wingtop clouds when pulling G's, too! God, that would be great!

[Python]

Some people care more about these things however, we can't all have it our own way. I think vapour is an important visual aid that will help people get deeper into the sim, it adds extra realism. It isn't perfect right now but it is a welcome start and it is nice to know ED are working on it, I'm sure eventually it will be more natural... and the whole wing will be caked in it. :pilotfly:

[kk0425]

I think everybody should take a deep breath and relax. This is a sim after all. Even if they're not perfect, they're still wonderful additions to an already fantastic sim.

 

Edit: And to expand on that, compromises have to be made. We're all not running the same hardware. Some of us might even be using a full 3 axis simulator, while others are running off 5 year old laptops, and everybody in between. Plus, how does this not look freaking cool. You can almost feel the speed just by looking at this.

 

Edited September 9, 2013 by kk0425

[Python]

Watch the F-18 take off at 00:49 seconds in, Contrails galore, amazing stuff.

 

And the F4 at 34:50, very nice sight indeed...

 

Edited September 12, 2013 by Python

[power5]

US f4 phantoms are smokey

 

 

Was something wrong with the engines on that poor F4? I dont remember them being that smokey. This is more representative of most videos I have seen. Or course this is in HD 240p.

Edited September 12, 2013 by power5

[NRG-Vampire]

thanks for the video :thumbup:

the phantom was awesome :) it got smokey engines without afterburner - just like the fulcrum

 

http://forum.lockon.ru/showthread.php?p=1848994#post1848994

 

Edited September 12, 2013 by NRG-Vampire

[Madone]

Speaking about engine smoke... I saw a formation of 2 Mirage 2000's in a low level flight over my house this morning, then they turned East to climb up and I noticed that only one aircraft (the wingman) produced some engine smoke but for a short period of time (like 3 or 5 sec).

I don't know how ED will code, that seems so random to me oO If they want it reallistic, that will surely be a pain in the a**...

[sobek]

The most smoke usually occurs while the engine is in a transitory state, namely spooling up. It's perfectly possible to model this, especially with how sophisticated the engine model is in the DCS products.

[howie87]

Any word on when we'll see this?

[GeorgeLKMT]

Any word on when we'll see this?

 

1.2.7. No word on when 1.2.7 will come though...

[SkateZilla]

1.2.7. No word on when 1.2.7 will come though...

 

Do you have an official statement regarding that? I may have missed it..

 

The most smoke usually occurs while the engine is in a transitory state, namely spooling up. It's perfectly possible to model this, especially with how sophisticated the engine model is in the DCS products.

 

TBh the Smoke looked pretty good in the time frame I got to play with them, When I pump or push the throttle forward the smoke got darker and increased velocity etc.

[GeorgeLKMT]

Do you have an official statement regarding that? I may have missed it...

 

ED said that on facebook.

[SkateZilla]

At least they go over the wing and not under the wing IRL, but they'll fix this probably in game!

 

Positioning the Connectors changes the Direction of the Vertices.. I played with them in the EDM Viewer.

[NRG-Vampire]

Positioning the Connectors changes the Direction of the Vertices.. I played with them in the EDM Viewer.

 

yeah this works in modelviewer only - presently (modelviewer is already 1.2.7)

unfortunately in the 1.2.6 sim only the positioning works - rotating not

but hopefully it will change in 1.2.7

[SkateZilla]

The A-10C Tip Vapor is fine (doesnt Dip downwards).

[NRG-Vampire]

The A-10C Tip Vapor is fine (doesnt Dip downwards).

 

in the modelviewer or in the sim ? (i go to check right now)

if in the sim it's fine then probably it means AFM vortices (rotation) is implemented however SFM still not

[SkateZilla]

SFM uses the Coordinates in the LUA AFAIK.

[Suchacz]

It would be nice to have this effect for the props and rotors too...

 

 

[NRG-Vampire]

SFM uses the Coordinates in the LUA AFAIK.

 

yeah but the vortices calculation the same as AFM (seems to)

as i see A-10C got (checked: still wrong - dip downwards) vortices at 3-4G but in contrast A-10A got dashed vortices (wrong too) over 6Gs only

moreover A-10A AFM very far from A-10C AFM: almost impossible to pull more than 6Gs with A-10A: got stall warning at 0.7 Mach and 5Gs :doh: if i pull hardly - 10% fuel, no weapons both

Edited October 29, 2013 by NRG-Vampire

[SkateZilla]

unless something changed in the recent patch, the A-10C Vapor was fine, See Attach.

 

As for Prop/Rotor Vapor, Just Put the Connectors on the Blade Tips and Adjust the Flight Model to show Vapor in relation to Speed (ie SuperSonic Transition).

[Echo38]

It would be nice to have this effect for the props and rotors too...

 

I've been watching aircraft for my entire life, and I've never seen anything like those pictures. Indeed, I've never seen any trails at all coming from propellers or rotors. Is there a specific set of conditions under which visible trails on prop/rotor tips are present?

[Suchacz]

I've been watching aircraft for my entire life, and I've never seen anything like those pictures. Indeed, I've never seen any trails at all coming from propellers or rotors. Is there a specific set of conditions under which visible trails on prop/rotor tips are present?

I'm not an expert, but imho it depends on air temperature, pressure, dew point, relative humidity, and of course on prop/rotor configuration as its tip speed and angle of attack.

 

If I remember it correctly from my highschool physics classes, it is called "Adiabatic expansion" - sudden air pressure drop which is causing this condensation of water vapour in the air...

 

Edited October 29, 2013 by Suchacz

[SkateZilla]

I figured it was when the wingtip speed exceeded mach 1 while the center of the prop was subsonic. (Like a C-130 at Max throttle)

[Suchacz]

I figured it was when the wingtip speed exceeded mach 1 while the center of the prop was subsonic. (Like a C-130 at Max throttle)

Wow, never heard about that, it must cause tremendous vibrations, shouldnt it? :huh: