[Greg Elmassian]

Lee, you have a new RDC-3? Cool. I'm sure you already put a QSI in it. Can you comment on the disassembly, and any pictures?

Regards, Greg

 

[Greg Elmassian]

I put a QSI in my RDC-1, since I know I can upgrade the sound file any time I want. The GP40 file, tweaked a bit is not bad.

Beats running it on DC and/or no sound.

Regards, Greg

 

[Greg Elmassian]

Yep, I was looking at using the Aristo socket to make it dead easy.

Wonder how/if the wiring changed in reference to the sound card also.

Lee, you stated you had an RDC-3.... would you be so kind as to show/tell what has changed on the Aristo wiring?

(I'm assuming you are very interested in products that have the Aristo socket to allow the QSI to just plug in)

(I am).

Regards, Greg

 

[Greg Elmassian]

Jerry, many people have derailing problems with the RDC.

One reason is that the trucks are not very flexible, and the major reason is just the length does not live well with poor trackwork.

Having traction tires on it can make it run worse in these conditions, when the RDC rocks a bit one truck can lose traction (lose contact with rails) and the other one, instead of slipping, may "grab" because of the traction tires, thus increasing the frequency of derailments.

I removed my traction tires and that cleared things up (although subsequently I improved my trackwork)... some people also leave the traction tires on one truck and make the other freewheeling... the concept is the same, basically.

Not sure if this is Marty's personal reason, but it's a common "solution".

Regards, Greg

 

[Greg Elmassian]

No tires is indeed good news.

The wheels have a taper fit on the axles and use a screw on the end, that's current production for the non "prime mover" gearboxes.

There will be fewer derailments w/o the tires.

Regards, Greg

 

[Greg Elmassian]

I just received some of Loco Lee's sound clips for the RDC and for an F7. They sound very nice, and I'm hoping we will see them in the very near future.

As everyone knows, QSI has not had an RDC sound for some time. You can clearly tell the motor is not the standard GP diesel.

What was particularly exciting was the F7 sound, where the startup and shutdown was really detailed and distinctive. Lee said the F7 engineer had never been to notch 8 before on that loco! (It's on an excursion line).

Regards, Greg

 

[Greg Elmassian]

Yes, like a real recording of a real RDC and hearing all the four "gears"?

By the way, I could not change the notch speeds with CV 55.21.0. Not surprised. Momentum did not change them. PID experiments tomorrow.

Try the doppler shift on the horn.

Regards, Greg

 

[Greg Elmassian]

Yes, in the blister... not too bad one...

Greg

 

[Greg Elmassian]

Thanks Lee! Drove home from work, got out the laptop, and updated my Q2upgrade program to 16.0.0 and then loaded the new sound. It's a little more "polished" it seems from the Beta you sent me.

Overall the volume is a bit low out of the box. I'll experiment and then put recommended changes on my site, as I usually do.

One funny thing: when you do the F9 shutdown, you get the very loud (by comparison) idling thump thump sound as on the Alco sounds.. that needs to be changed... you have to go "through" that sound to do a complete shutdown, which is very nice with the twin diesels!

Regards, Greg