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Okay as default both smoke stacks set to smoke alternately so attempted to change argg!

 

I soon found out that you must not load engine module first and then set a new engine ID# and set smoke stacks using aux1 then 9 key.

 

apparently the instruction manual not exact as this is how I was able to do it.

 

I slid run switch to program pushed engine soft key entered the ID # I wanted then I pushed aux1 key and then the # 9 key and then pushed set engine responded accordingly then slid switch to run and then loaded the Big Boy module.

 

in reading the instruction booklet they mention legacy or in command mode so are they now calling cab-1 as in conventional being legacy? and command mode is the gain access to all cool features using cab-2?

 

so new question!  do I have to revert the Big Boy back to cab-1 status to set default smoke feature as delivered from Lionel now?

thanks for clarity on this.

Last edited by Former Member
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First, it does not matter if you load the engine module first or not.  The Module controls the Cab-2 configuration, not a locomotive configuration.

 

Al you need to do, and it is very simple, is set the TMCC ID of the loco, and then press AUX1, and numeric 9 after "set".  If you don't understand how to use the Cab-2 once the memory module is loaded (the 9 key will change on the "run" screen); please read the Cab-2 manual on how to use the Engine Programming features in the Cab-2.

 

 

Last edited by SantaFeFan

SantaFeFan,  thank you I went to cab2 remote changed from legacy control for the Big Boy to cab1 control and with module loaded it worked as you said.

 

you can understand or maybe not my confusion as instructions with big boy do not mention changing smoke stack default sync mode cab-2 has too be in cab-1 mode.

 

so I added the wording so next time I have a visual to read that is correct.

 

 I just didn't realize when instructions said to push aux1 and 9 key they meant cab 2 should be in cab-1 mode.

 

 so I assumed cab-2 in legacy mode that would still be the 9th position with or without a numeral key showing apparently my mistake!

 

at any rate thanks again for the heads up.

 

 

 

 

Hot Water. the single smoke and a double chuff while prototypical seems odd to my ear.

 

I do like the double smoke stack combined with the double chuff even if not prototypical then again its a toy train true?

 

guess that is why they did software etc so we could run them how we want to our own personal preference.

 

so the prototype was each engine/driver assembly in sync as one? 

 

which in turn would equate to a sync of both engines exhaust cycles?

 

hey if you don't ask how will one learn!

ST PAUL,

 

To be honest, I have no idea what you are asking.  At any rate, the smokebox on any and all steam locomotives is one huge open-on-the-inside cave, so to speak. No mater whether there there are two exhaust nozzles , as on articulateds, or one exhaust nozzle as on two cylinder and three cylinder locomotives, the end result is the exhaust steam/smoke all exists the stack/stacks in unison, i.e. no individual synchronized chuffs.

Originally Posted by Hot Water:

ST PAUL,

 

To be honest, I have no idea what you are asking.  At any rate, the smokebox on any and all steam locomotives is one huge open-on-the-inside cave, so to speak. No mater whether there there are two exhaust nozzles , as on articulateds, or one exhaust nozzle as on two cylinder and three cylinder locomotives, the end result is the exhaust steam/smoke all exists the stack/stacks in unison, i.e. no individual synchronized chuffs.

so how do they get both steam nozzles to discharge in unison? and why are there 2 stacks as opposed to one large stack? are the fire tubes divided into 2 sections, one for each stack? inquiring minds want to know.

Last edited by JohnS
Originally Posted by JohnS:
Originally Posted by Hot Water:

ST PAUL,

 

To be honest, I have no idea what you are asking.  At any rate, the smokebox on any and all steam locomotives is one huge open-on-the-inside cave, so to speak. No mater whether there there are two exhaust nozzles , as on articulateds, or one exhaust nozzle as on two cylinder and three cylinder locomotives, the end result is the exhaust steam/smoke all exists the stack/stacks in unison, i.e. no individual synchronized chuffs.

so how do they get both steam nozzles to discharge in unison?

 

The two nozzles do not discharge "in unison". In the case of UP steam locomotives, which had the twin stacks, each nozzle discharges upward into, and through the petty-coat pipe and stack. However, the other exhaust nozzle may also be discharging at the same time. The other factor is, the smokebox is so large, that the draft created by each exhaust, discharges smoke & hot gasses out of both stacks.

 

and why are there 2 stacks as opposed to one large stack?

 

Do to the "lower grade" coal that UP used, greater draft was required in order to support such huge fireboxes. Thus the 3900 class 4-6-6-4s, the FEF-2/FEF-3 4-8-4s, and the 4000 class locomotives all had twin stacks (in fact at least one FEF-3 4-8-4 had three stacks, as an experiment).

 

Many other railroads with articulated steam locomotives used only one large exhaust stack arrangement.

 

are the fire tubes divided into 2 sections, one for each stack?

 

No. The fire tube design boilers are not separated. 

 

inquiring minds want to know.

 

Last edited by Hot Water

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