<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Dave,</div><div dir="auto">You are very much mistaken about the speed limits of the K class locos! Class K1 and K2/K2a were "high rollers"!</div><div dir="auto">Only the class K3 had problems with balance and were speed limited.</div><div dir="auto"><br></div><div dir="auto">Jimmy Lisle</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><div style="font-size:12px;color:#575757" dir="auto">Sent from my Verizon, Samsung Galaxy smartphone</div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: NW Mailing List <nw-mailing-list@nwhs.org> </div><div>Date: 1/14/25 1:28 PM (GMT-05:00) </div><div>To: Norfolk Western Mailing List <nw-mailing-list@nwhs.org> </div><div>Subject: DCC CV's - Best Practices for N&W Steam </div><div><br></div></div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Steam Modelers;</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
It’s been a long time since I’ve seen any messages from the NW-<u>Modeling</u>-List leaving me to wonder if it has fallen into disuse. So, I’ll post here on the NW-<u>Mailing</u>-List.</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
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.</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Beginning with some foundational matters:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
My goal is to keep things <u>reasonably</u> realistic. For example; The Y classes were not speed-demons, and the K classes had operational speed limits due to counterbalance issues.</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
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.</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Have you pursued speed limitations? Initial research suggested these top speeds for Road Power: </div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Class A – 70 mph</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Class J – 110 mph</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Class K – 35 mph</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Class Y – 50 mph</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
What are you using for:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 02 – Start Voltage</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 03 – Acceleration Rate</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 04 - Deceleration Rate</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 05 – High Voltage (Speed Limiting)</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 06 – Mid Voltage</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 65 – Kick Start</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Speed Curves:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Which are you using?</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
3-point curve? (Start, Mid, High of a preloaded curve)</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 25 - Speed Table Selection? Which one?</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
14 step or 28 step configured?</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
What do you have for CV 67 to CV 94?</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Are you using a Throttle Control Mode? If so, which one?</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Speed Matching & Consisting:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
If it is Speed Matched, to what locomotive?</div>
<div style="text-indent: 0.5in; margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
What values do you use for:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 66 – Forward Trim</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 95 – Reverse Trim</div>
<div style="text-indent: 0.5in; margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
What values do you use for consisting with other Locomotives:</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 21 – Consist Functions Fn1 to Fn8</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 22 – Consist Functions Fn0 & Fn9 to Fn12</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 23 – Consist Acceleration Rate</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CV 24 - Consist Deceleration Rate</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Thank you,</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Dave Willis</div>
<div style="margin: 0in; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Blt 1962, CN 4</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
</body></html>