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Good Afternoon Everybody,

I have a question concerning the UA F units. I recently acquired a dummy unit in not the best shape, and am thinking about converting to a powered unit. I know that the Marx generic motor has about the same wheelbase as the dummy trucks, but just how similar to Marx were the UA motors?

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@CP BOB posted:

Hi,  Steve mounted the frame on a Williams chassis. The GP9 should work. When I asked him, he couldn't remeber which engine he used. I have several Williams and the GP is closest. Almost an exact match.

Bob

Hmmm.

Certainly a thought. I was thinking of using another mechanism directly inside (Marx is almost dead on for wheel base, but I have some Scout motors here... for better or for worse).
Might need to give that one some consideration.

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