UP "Passenger" F units

Dominic Mazoch posted:

I read somewhere that UP had some F units equipped with steam lines, signal lines, ET AL.  But all the pics I see have UP passenger trains powered by E units.  Did UP ever use F units on passenger trains other than for protection?  Was this the same for some of the GP30B's and SDP35's?

You might try the Union Pacific Historical Society.

Not sure about passenger F's. They may  have been used in local passenger service. Or like the GP30B's and SDP35's equipped with steam generators, their main purpose was back up power for mail trains. But from what I have read they were seldom used in this service and mostly in freight pools.

Dominic,

 Kratville and Rank's book, The Union Pacific Streamliners, has diagrams of the UP's FP-7A and FP-7B units (UP owned 2 of each).  It further states they were used on the OSL on secondary trains such as The Portland Rose.

 ChipR

In the late 1940's through about 1955, UPRR ran some passenger F3's on extra sections of passenger trains between Salt Lake City and Los Angeles, and mixed some in with E7's on occasion.  The Los Angeles trains other then the City of Los Angeles and the Challenger, were mostly using Alco-GE and Fairbanks-Morse passenger units at that time.  Once the first order of E9's was delivered, the F3's, the Alco-GE's and the F-M's disappeared from California passenger trains.

ChipR posted:

Dominic,

 Kratville and Rank's book, The Union Pacific Streamliners, has diagrams of the UP's FP-7A and FP-7B units (UP owned 2 of each).  It further states they were used on the OSL on secondary trains such as The Portland Rose.

 ChipR

FP's 7 and 9's only came as "A" units.  The "B" unit would be a regular length F7 or 9, I believe