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- PRR_FF1 height "4267.2".
- PRR_FF1 length "23164.8".
- PRR_FF1 abstract "The Pennsylvania Railroad's class FF1 was an American electric locomotive, a prototype numbered #3931 and nicknamed "Big Liz". It was built in 1917 to haul freight trains across the Allegheny Mountains where the PRR planned to electrify. "Big Liz" proved workable but too powerful for the freight cars of the time with its 4600 available horsepower and astonishing 140,000 pounds of tractive effort. Pulling the train it regularly snapped couplers and when moved to the rear as a pusher its force was sufficient to pop cars in the middle of the train off the tracks.It had a 1-C+C-1 wheel arrangement in two half-frames, connected in the center. Each frame had a pair of three phase AC induction motors driving a jackshaft through gearing and a spring drive; side rods then drove the wheels. Three phase power for the 4 massive motors was supplied from the single phase overhead supply via a large rotary converter housed in the body of the locomotive. Combined rated output of the motors was 7640 hp, but the converter could only supply a short term 4600 hp or a continuous 4000 hp. With three-phase induction motors there was no way to control the speed of the motors; changing the wiring of the motor poles allowed for two speed settings, 10.3 mph and 20.6 mph, which were considered enough to drag heavy freight trains up and down steep grades.Its intended use as an Allegheny climber never realized and its power too much for the rolling stock in service at the time, Big Liz was sidelined until being cut up for scrap in 1940.".
- PRR_FF1 activeYearsEndYear "1917".
- PRR_FF1 activeYearsStartYear "1917".
- PRR_FF1 builder Altoona_Works.
- PRR_FF1 builder Westinghouse_Electric_(1886).
- PRR_FF1 height "4.2672".
- PRR_FF1 length "23.1648".
- PRR_FF1 numberBuilt "1".
- PRR_FF1 thumbnail PRR_FF1.jpg?width=300.
- PRR_FF1 topSpeed "33.152404".
- PRR_FF1 wikiPageExternalLink PRRElectricLocomotive_1917_RME_389-390_DennisShort.pdf.
- PRR_FF1 wikiPageExternalLink Pennsylvania_Electric_Locomotive_1918_RME_DennisShort.pdf.
- PRR_FF1 wikiPageID "3630199".
- PRR_FF1 wikiPageRevisionID "593965882".
- PRR_FF1 aarwheels "1".
- PRR_FF1 builddate "1917".
- PRR_FF1 builder Altoona_Works.
- PRR_FF1 builder "with Westinghouse".
- PRR_FF1 collectionmethod Overhead_line.
- PRR_FF1 electricsystem "11".
- PRR_FF1 hasPhotoCollection PRR_FF1.
- PRR_FF1 imagesize "250".
- PRR_FF1 name "PRR FF1".
- PRR_FF1 powertype "Electric".
- PRR_FF1 totalproduction "1".
- PRR_FF1 tractionmotors "4".
- PRR_FF1 tractiveeffort "Continuous:".
- PRR_FF1 tractiveeffort "Starting:".
- PRR_FF1 transmission "Rotary converter supplied 25Hz three phase alternating current fed to motors able to run at one of two speeds and connected to the drivers through Jackshafts and side rods".
- PRR_FF1 uicclass "1".
- PRR_FF1 subject Category:1-C+C-1_locomotives.
- PRR_FF1 subject Category:11_kV_AC_locomotives.
- PRR_FF1 subject Category:Electric_locomotives_of_the_United_States.
- PRR_FF1 subject Category:Experimental_locomotives.
- PRR_FF1 subject Category:Individual_locomotives_of_the_United_States.
- PRR_FF1 subject Category:Pennsylvania_Railroad_locomotives.
- PRR_FF1 subject Category:Scrapped_locomotives.
- PRR_FF1 subject Category:Unique_locomotives.
- PRR_FF1 type Locomotive.
- PRR_FF1 type MeanOfTransportation.
- PRR_FF1 type Product.
- PRR_FF1 type DesignedArtifact.
- PRR_FF1 comment "The Pennsylvania Railroad's class FF1 was an American electric locomotive, a prototype numbered #3931 and nicknamed "Big Liz". It was built in 1917 to haul freight trains across the Allegheny Mountains where the PRR planned to electrify. "Big Liz" proved workable but too powerful for the freight cars of the time with its 4600 available horsepower and astonishing 140,000 pounds of tractive effort.".
- PRR_FF1 label "PRR FF1".
- PRR_FF1 label "PRR-Klasse FF1".
- PRR_FF1 sameAs PRR-Klasse_FF1.
- PRR_FF1 sameAs m.09r0yq.
- PRR_FF1 sameAs Q1485145.
- PRR_FF1 sameAs Q1485145.
- PRR_FF1 wasDerivedFrom PRR_FF1?oldid=593965882.
- PRR_FF1 depiction PRR_FF1.jpg.
- PRR_FF1 isPrimaryTopicOf PRR_FF1.
- PRR_FF1 name "PRR FF1".