Dr Zarkoff Wrote:
-------------------------------------------------------
>
> > Maybe you guys did, with the luxury of sg
> equipment.
>
> What is "sg equipment"?
>
Standard Gauge. :)


> > Not so with 325 max amps D/B rated EMD G-12 and
> 6SL brake;
>
> The maximum continuous TM current rating for an
> F-3 is 700 amps. Looking up a G-12 on wikipedia, I
> get the impression that slightly more than 60% of
> an F-3 in all respects.
>
See my Flickr [flic.kr]

Wheel Arrgt: A1A-A1A with EMD "flexi-coil" truck
Driving Wheel Dia: 40 inches
Idler Wheel Dia: 33 inches
Engine: EMD 12-567C
Horsepower (engine): 1425hp at 835 rpm
Horsepower (traction): 1310hp (input to main generator)
Tractive Effort: 29000lbs
Main Generator: EMD D12
Traction Motors: EMD D19
Air Compressor: Air cooled Gardner-Denver model WXO
Air Brake Schedule: WABCO 6SL
Total Weight: 80.5 tonnes/88.73 short tons
Fuel Tank Capacity: 792 US Gals
Water Capacity: 205 US Gals
Length Over Pulling Faces: 46 feet 3 inches

>
> > often worn Triples with leaking across the face
> and thence undesired releasing on that wagon.
>
> I would suspect leakage between ports in either
> the slide valve and/or the slide valve seat rather
> than across the faces of the operating piston.
>
Correct, across the faces of the slidevalve: leaking piston would just contribute to BP leakage during application.

regards

Chris
in New Zealand