Jump to content

About those wingtip vortices & engine smoke ...


Echo38

Recommended Posts

The engine exhaust, too, I'm puzzled about. Most modern fighters don't usually leave visible smoke, as best as I can remember. Not U.S. ones, anyway. I've seen Russian fighters leave smoke, and older jets, but I don't recall ever seeing smoke from an F/A-18 or F-16, or anything similar, discounting smoke generators.

Discuss?

 

They don't constantly smoke, but smoking F-15, F-16, F-22 (F-22's is an interesting brown colour...)

1646670836_SmokingF-15.JPG.bb0366134c3ec0759c94e34c4e349932.JPG

562195761_SmokingF-16.JPG.01fb4ec82adb521c8a2f707da3df0b1f.JPG

870464235_SmokingF-22.JPG.56522ba1a8c88e0c69cdc829368e4bf5.JPG

Cheers.

Link to comment
Share on other sites

  • Replies 112
  • Created
  • Last Reply

Top Posters In This Topic

Again, I've seen countless C-130s taking off, and never any trails from the props. Have you seen this in person, or only in pictures?

QUOTE]

 

Yes I have, plenty of time (I'm ex RNZAF), this picture was taken just a couple of weeks ago at my local airport. Nothing to do with camera, this happens quite frequently. Perhaps it is our high humidity we have here in NZ.

InWin S Frame with Asus Z170 | i7-6700K @ 4.5 Water Cooled CPU and Graphics | 16GB DDR4 | GTX1070 | 240GB M.2 SSD | Warthog Hotas | MFG Crosswind | 40" Samsung 4K | CV1 | Replica MB Mk10 Ejection Seat with Gametrix 908

Link to comment
Share on other sites

Again, I've seen countless C-130s taking off, and never any trails from the props.

 

dVvK3ra.jpg

i7 7700K | 32GB RAM | GTX 1080Ti | Rift CV1 | TM Warthog | Win 10

 

"There will always be people with a false sense of entitlement.

You can want it, you can ask for it, but you don't automatically deserve it. "

Link to comment
Share on other sites

A book I was reading a while ago stated that the number of blades on a propeller was 'limited' to 5 by propeller interference. I have just seen another photo of the Alenia C27-J (thanks to Python for alerting me) which has 6 bladed propellers. Anyone know how the 'limit' was able to be broken?

Alpine Systems PC with Intel i7-2600K @ 3.40/3.70 GHz. NVidia GTX590 Graphics. 24 Gb RAM (24 Gb usable!). 64 bit. Windows 7 PRO SP1. 3 x Samsung P2370 monitors. Thrustmaster HOTAS. TrackIR5. :joystick:

Link to comment
Share on other sites

^^^

Google "NP2000" and prepare to be amazed.

 

 

Correct - I am amazed.

 

For those who want to know more than they need ;) I recommend the Wikipedia entry Propeller (Aircraft) which has a great description (plus formulae!) of most of what has been discussed in this thread. It also has some great photos. :smartass:

Alpine Systems PC with Intel i7-2600K @ 3.40/3.70 GHz. NVidia GTX590 Graphics. 24 Gb RAM (24 Gb usable!). 64 bit. Windows 7 PRO SP1. 3 x Samsung P2370 monitors. Thrustmaster HOTAS. TrackIR5. :joystick:

Link to comment
Share on other sites

A book I was reading a while ago stated that the number of blades on a propeller was 'limited' to 5 by propeller interference. I have just seen another photo of the Alenia C27-J (thanks to Python for alerting me) which has 6 bladed propellers. Anyone know how the 'limit' was able to be broken?

 

Blade Design, apparently you havent seen the late E-2C and E-2D NP2000 Turbo Prop System, Eight Blades

Windows 10 Pro, Ryzen 2700X @ 4.6Ghz, 32GB DDR4-3200 GSkill (F4-3200C16D-16GTZR x2),

ASRock X470 Taichi Ultimate, XFX RX6800XT Merc 310 (RX-68XTALFD9)

3x ASUS VS248HP + Oculus HMD, Thrustmaster Warthog HOTAS + MFDs

Link to comment
Share on other sites

Blade Design, apparently you havent seen the late E-2C and E-2D NP2000 Turbo Prop System, Eight Blades

 

;) Well. I have now!

 

The question still arises - how did the designers find a way round the blade interference problem? I see from my latest reading that by bending the blade into a 'scimitar' shape it delays the onset of the transonic airflow over the blade tips - perhaps it was this transonic flow that was causing blade interference?

Alpine Systems PC with Intel i7-2600K @ 3.40/3.70 GHz. NVidia GTX590 Graphics. 24 Gb RAM (24 Gb usable!). 64 bit. Windows 7 PRO SP1. 3 x Samsung P2370 monitors. Thrustmaster HOTAS. TrackIR5. :joystick:

Link to comment
Share on other sites

  • 1 month later...

About engine smoke in 1.2.7

 

I think these things would make the effect more realistic:

 

- make the transition between MIL smoke and Afterburner more smooth. Right now the smoek just suddenly stops as soon as the AB kicks in. It would be much nicer if it faded away into an extremely faint light brown smoke when the AB is on.

 

- Please tune the smoke amount and color for western jets. Haven't seen any F-15, f-16 or F-18 smoke nearly as much and as black as they do in 1.2.7. The color should be light brown and barely visible unless you're looking from the front/back or during rapid throttle movement.

 

Other than that, great work on the Mig-29's smoke.

Thanks.

Windows 10 - Intel i7 7700K 4.2 Ghz (no OC) - Asus Strix GTX 1080 8Gb - 16GB DDR4 (3000 MHz) - SSD 500GB + WD Black FZEX 1TB 6Gb/s

Link to comment
Share on other sites

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...