[markus_GE]

You need to increase the DieselSmokeEffectInitialSmokeRate value to at least 0.5, from my findings of about a month ago. Otherwise, you will have no smoke at idle, but the rate of creation of these smoke puffs will be interpolated from the difference between Idle and Run8 puff rates, which can result in such low puff rates that produce single puffs instead of a continuous stream.

Cheers, Markus

[markus_GE]

Maybe I just recall that value wrongly. You´re reight, just go for trying some higher values, please.

Cheers, Markus

[markus_GE]

That´s really odd. When experimenting with values for my program back then when the new smoke system was still NEW, the figure had changed from bein puffs per second, for sure.

No it might be back to puffs per second, from what you tell. So, maybe just try out a high value, like 10, just to confirm this, so you´d get a better feeling for how things work and what might look correct.

Cheers, Markus

[roeter]

Just another aspect to this : is it possible to change the colour of the smoke?
Presently, if you want more smoke, you always get black smoke.
But some diesels were known for their quite excessive smoke rate - but thick blue smoke rather than black.
The UK Deltics were known for this, and some of the 'first generation' UK DMU's could lay a real smokescreen at times - but blue, not black. Once they started to emit black smoke it was usually the end of things - failure was then imminent.

Regards,
Rob Roeterdink

[copperpen]

I first came across this phenomenon a few months back, might even have been last year. I queried as to why the F7 I was using on the MONON route was producing big puffy clouds, while an RS3 was showing the thin plume. I was told it had something to do with the nozzle size. I changed all settings on the F7 to match the RS3, but the F7 continued to emit big light puffy clouds. That meant something else was driving the smoke emissions, but what?. Lack of any thing obvious in the eng file has me stumped.

[markus_GE]

Hm... I never got nor get the problem... Just to check all possibilities, how many other locos do your test activities use? Maybe something gets wrangled in there... (at least there has been a problem with steamers producing diesel smoke under certain circumstances).

Cheers, Markus

[markus_GE]

It can also be about the combination of a high DieselSmokeEffectInitialSmokeRate and a narrow nozzle, as I recall from experience.

Could you simply post the Exhasut section and the 4 DieselSMokeEffect lines?

Cheers, Markus

[markus_GE]

The values look pretty normal and acceptable to me.

Seeing that 2nd exhaust block, however, I also wonder what about removing one if the two. The first one is placed from the center of the locomotive 4.77 meters (feet?) towards the front, on the center line of the loco, and 0.819 meters (feet?) away from the railtop, if I interpret the values of the first line correctly. The 2nd exhaust is located at virtually the same position, just a tad higher, at roughly 3.27 meters (feet?). Thus, they will overlay one another.

Try commenting out the second block, and if that doesn´t work, the first block.

Cheers, Markus

[markus_GE]

Then I must have misinterpreted the position info. Any comments by somebody else on that?

BTW, how many smoke columns do you see on the model?

Cheers, Markus

[Monty]

I am using the following settings for all my early 2 stack diesels and they seem ok. Note that these are with 3dtrains light diesel smoke ace file available from their site.

Nozzle size for both stacks 0.15

DieselSmokeEffectInitialMagnitude ( 0.25 )
DieselSmokeEffectMaxMagnitude ( 3.0 )
DieselSmokeEffectInitialSmokeRate ( 0.15 )
DieselSmokeEffectMaxSmokeRate ( 1.0 )

Play around with the last entry in particular by small amounts (+/- 0.1 or 0.2 at a time) to increase or decrease smoke
Also check the line DieselEngineMaxRPMChangeRate is not set at some silly figures I have seen at times.
Hope this helps Cheers Ziggy