Different

[ScaleCraft]

https://www.ebay.com/itm/Cast-Metal-O-S ... 3613858225

Not too bad. Paint is nice, numbers on nose...eh.

Odd brass plates under the motors. I am guessing mounts for can motors. One roof mount antenna needs work.
Running through all these I have seen over the decades, cannot remember a single power B unit. Odd. Maybe a LONG motor. Mismatched trucks....one straight cut, one helical gears. Oh, well.
Price? WAY high, but that's opinion.

This IS Trainz. You would think they'd have figured out who made these other than "Cast Metal 0 Scale...", and in description: "Brand: Does Not Apply".

How hard is that, anyway?

[bob turner]

I don't think they care - they are doing a volume business, raking in money. On these, I don't care either. I like the brass cast F-units. I have five AN F units around here, and my reaction is "ho-hum."

[De Bruin]

I wonder if the PRR F3's had steam generators? apparently here they did.
We received a notably similiar loaner AN F7 A-B set (sans SG's) similarly decked out with the induction antenna on the roof of the A unit (was it Bowser/Mantua who sold/sells these antenna sets?)
Anyway they had the same single truck drive in both units, though both having helical gear sets. They looked and performed exceptionally well on the layout for about three years and we ran the dog s*** out of them, eventually the wheels on the trailing B unit's rear truck started sliding inward on the axle, due to the lateral force pulling our ruling grade (unfortunately all on a curve too) with heavy old school freight cars in tow. I'd re-fix them with Loctite and various other remedys but after another month or so in service they'd break loose again, so their "lease" was not renewed and they've since been returned to their owner.

[ScaleCraft]

On single-powered A units, I've seen in person exactly one dual powered one. Took a special set of trucks and a driveshaft. Always thought that would be a good fix for the GM 600 horse vertical motor jobs to get 8 wheel drive out of them. Custom length driveshaft, tho.

[E7]

I wonder if the PRR F3's had steam generators?

PRR F units did not have steam generators.

[ScaleCraft]

But these ones do, which makes them worth $485!

[bob turner]

The dual drive was an optional kit from All Nation. I bought one. Their drive shaft idea left something to be desired - I used KTM U-joints.

I agree - overpriced.

[E7]

But these ones do, which makes them worth $485!

No thanks, but apart from the steam generators, they are a fairly accurate rendition of the first 6 PRR EMD A units: streamlined number boards, road numbers 9500, 9501, 9502, 9503, 9504, and 9505, high fans, train phone antennas.

[Rufus T. Firefly]

I don't think they care..........

If it's not from one of the easily identified 3 rail clans, or lacks a brass import box, then they clearly have minimal interet in getting anything correct.

.......my reaction is "ho-hum."

Agreed.

[ScaleCraft]

The dual drive was an optional kit from All Nation. I bought one. Their drive shaft idea left something to be desired - I used KTM U-joints.

I agree - overpriced.

I know it was optional...just as stated, only ever seen one in person.
That was one of the reasons I thought for dual powered B units. Single A, dual B, had your pulling power. Not seen any single B units in person, ever, I don't think.

Saw one once the owner had single A, dual B, dummy A, pulled a drive out of the B, and had single A-B-A, but I knew that, so wasn't factory.