Southern Pacific S-gauge Cab Forward DCC Steam Engine
(click on a photo to enlarge it and
to see YouTube video)
A unique custom-made S-gauge engine. Unfortunately not operational when it arrived.
Too modern a cab and tender, and missing a two-wheel trailing truck to be prototypical of an early SP CF, but close enough for fun
No coal load. These were oil-fired. No way to add coal with the smoke box facing the tender
Only on a cab forward
Two six-driver trucks. One fixed and powered. The other pivots and not powered.
The powered truck without the motor
Underside of powered truck. Note the unique crosshead and linkage work.
The dummy or non-powered rear truck
Underside of the dummy truck
Plenty of mechanical issues. Here's a loose rim.
Another loose rim
A loose insulator. Both trucks were removed, degreased, and their issues addressed.
Chopped linkages and custom pivot points galore
Everything had been just pretty much thrown into the boiler
Another view of the entropy
Original "builder's plate"?
Plenty of electrical issues. These wires were melted together. Short circuit anyone?
Lots of other wiring issues - note the solder, bare edge, tape, and 1" spliced segment - what?
Amazingly, the decoder was not fried, tested well, and was reusable.
See the ash pan LED. Wired and programmed to glow steady - in reverse. That too was corrected.
The pilot helps with pick up. Good design. When rewired with leads that aren't melted together.
Coal load had been replaced with brass plate - nice.
Mechanical, electrical, and wiring issues addressed.
Speaker, decoder, and capacitor mounted. Wiring routed and strapped.
Sounds, lighting, and motor performance optimized with JMRI. Ready and running!
1:1 scale early SP 4-6-6-2. Note the square forehead cab and covered-wagon tender.
Classic late model SP 4-8-8-2 cab forward, note the rounded forehead cab, and square tender.
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