Murphy models 121 with smoke!

[meathdane]

Just came upon this from TRS trains, all I have to say is WOW! 

https://fb.watch/ebc5c4fQ1E/

This guy does incredibly work! Especially fitting the generator unit into such a packed locomotive!

[irishthump]

Yeah that's a major feat of engineering there! I wonder did he use some of the empty space behind the see-through grill...

[MauriceJ]

https://youtu.be/dIKFqW8iuk8

[Westcorkrailway]

I love the weathering in this loco, as I do the smoke. They compliment each other very well. 

 

accodning to the manufacture the speaker and decoder was moved to the rear area behind the grill and the smoke machine was put where the decoder once was (smart idea might I add) 
 

 

[meathdane]

10 minutes ago, Westcorkrailway said:

I love the weathering in this loco, as I do the smoke. They compliment each other very well. 

 

accodning to the manufacture the speaker and decoder was moved to the rear area behind the grill and the smoke machine was put where the decoder once was (smart idea might I add) 
 

 

He's done a top class job! I'm very impressed!

 

I can't imagine it being cheap, but absolutely worth every penny! 

[Westcorkrailway]

24 minutes ago, meathdane said:

He's done a top class job! I'm very impressed!

 

I can't imagine it being cheap, but absolutely worth every penny! 

I think I’d quite enjoy one novelty model like this. 121 fits it well probobly with that extra space within to work with and the fact the prototype often be quite Smokey in the later days of its lengthy career 

[Georgeconna]

What are these smoke machines pray tell, Are they made by the lad installing them , Looks to be fan Assisted too?

EDIT: Just seen it  TRS Trains synchronised smoke   

100 notes too!

Edited July 13, 2022 by Georgeconna

[MauriceJ]

It’s a water atomiser. The “smoke” is actually cold water vapour.. It won’t set off fire alarms or smoke out a room.

[murphaph]

They are pretty cool but in reality once warmed up most diesels don't produce these huge plumes of smoke at high revs. The water vapour generation would need more complex control to be realistic, fading out as the revs increased, back in at medium revs then out again at idle. Only a cold engine would typically belch smoke throughout the rev range. Simply coupling the sound frequency to the generation rate may not work that well. The water also has to land back on the layout so that's something to bear in mind.

[Georgeconna]

3 hours ago, MauriceJ said:

It’s a water atomiser. The “smoke” is actually cold water vapour.. It won’t set off fire alarms or smoke out a room.

But it lands back down on the model for sure, happens to my Boats.

 

[JasonB]

On 13/7/2022 at 11:32 AM, murphaph said:

They are pretty cool but in reality once warmed up most diesels don't produce these huge plumes of smoke at high revs. The water vapour generation would need more complex control to be realistic, fading out as the revs increased, back in at medium revs then out again at idle. Only a cold engine would typically belch smoke throughout the rev range. Simply coupling the sound frequency to the generation rate may not work that well. The water also has to land back on the layout so that's something to bear in mind.

Killjoy 

[irishthump]

On 13/7/2022 at 2:17 PM, Georgeconna said:

But it lands back down on the model for sure, happens to my Boats.

 

 

 

On 13/7/2022 at 2:17 PM, Georgeconna said:

But it lands back down on the model for sure, happens to my Boats.

 

Yeah, fu*k that! It's hard enough to keep the track and layout clean without that going on.

[irishthump]

On 13/7/2022 at 11:32 AM, murphaph said:

They are pretty cool but in reality once warmed up most diesels don't produce these huge plumes of smoke at high revs. The water vapour generation would need more complex control to be realistic, fading out as the revs increased, back in at medium revs then out again at idle. Only a cold engine would typically belch smoke throughout the rev range. Simply coupling the sound frequency to the generation rate may not work that well. The water also has to land back on the layout so that's something to bear in mind.

At around 4:55 that 141 starts belching out smoke like there's no tomorrow! I've seen similar videos of US EMD diesels doing the same thing.

 

[murphaph]

10 hours ago, irishthump said:

At around 4:55 that 141 starts belching out smoke like there's no tomorrow! I've seen similar videos of US EMD diesels doing the same thing.

 

I think it behaves exactly as I described. Idle no smoke. Pulling away smoke. Cruising speed no smoke. The last minute of the video shows the same loco producing barely a whiff as she gets up to speed. The other 2 locos in the video don't show any signs of smoke at all.

You'd need more complicated control of the smoke unit to achieve that behaviour. You can't simply couple it to either the loco speed or loco sound frequency. A loco at full tilt typically wouldn't produce a stream of visible smoke. Only perhaps when moving off. Too fiddly if you have to manually switch smoke generation on and off I feel.

[murrayec]

ESU DCC & Lokprogrammer has built in smoke control for ESU, generic, and Seuthe smoke generators, which handles when one wants the smoke to happen.

Eoin