Fwd: DCC CV's - Best Practices for N&W Steam

[NW Modeling List]

> 
> Steam Modelers;
> It’s been a long time since I’ve seen any messages from the NW-Modeling-List leaving me to wonder if it has fallen into disuse. So, I’ll post here on the NW-Mailing-List.
>  
> I am initiating the task of programming the CV’s of a small number of N&W Steamers in classes A, J, K, S1, Y3, & Y6b and many questions are coming to mind. So, why not tap into the best data source for guidance? As you share information, please indicate the Locomotive Class.
>  
> Beginning with some foundational matters:
>  
> My goal is to keep things reasonably realistic. For example; The Y classes were not speed-demons, and the K classes had operational speed limits due to counterbalance issues.
>  
> When dealing with acceleration and deceleration rates – I’m rather torn about actually putting hard values in CV’s because I would say they should be dependent on external conditions such as train power and weight, in addition to terrain.
>  
> Have you pursued speed limitations? Initial research suggested these top speeds for Road Power: 
>               Class A – 70 mph
>               Class J – 110 mph
>               Class K – 35 mph
>               Class Y – 50 mph
>  
> What are you using for:
>               CV 02 – Start Voltage
>               CV 03 – Acceleration Rate
>               CV 04 - Deceleration Rate
>               CV 05 – High Voltage (Speed Limiting)
>               CV 06 – Mid Voltage
>               CV 65 – Kick Start
>  
> Speed Curves:
>               Which are you using?
>                            3-point curve? (Start, Mid, High of a preloaded curve)
>                                          CV 25 - Speed Table Selection?   Which one?
>                            14 step or 28 step configured?
>                                           What do you have for CV 67 to CV 94?
>                            Are you using a Throttle Control Mode?  If so, which one?
>  
> Speed Matching & Consisting:
>               If it is Speed Matched, to what locomotive?
> What values do you use for:
>                            CV 66 – Forward Trim
>                            CV 95 – Reverse Trim
> What values do you use for consisting with other Locomotives:
>                             CV 21 – Consist Functions Fn1 to Fn8
>                             CV 22 – Consist Functions Fn0 & Fn9 to Fn12
>                             CV 23 – Consist Acceleration Rate
>                             CV 24 - Consist Deceleration Rate
>  
> Thank you,
> Dave Willis
> Blt 1962, CN 4
> 
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