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I1sa 4483

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 "Old Photo Album" 

         #4483 was built in May of 1923 by the Baldwin Locomotive Works in Eddystone, Pennsylvania for the Pennsylvania RR, #259 of a lot of 475, c/n 56534. This "Decapod" is the last one in existance of the "I-1s" class, of which 598 were built.

In February, 1931, it was converted to an "I1sa" (109 were built class I-1s and later converted) and assigned to the Eastern Region, Susquehanna Division and Northern Region. On 11-1-1944, #4483 was reassigned to the Eastern Region, Central PA Division and Williamsport Division when it was equiped with   "Cab Signal, Whistle and Acknowledger." 

The I1sa class was designed for freight service, and all came with piston valves, 62-inch drivers, and a boiler pressure of 250 p.s.i. as standard equipment. With a huge firebox (312 square feet), twin automatic stokers were installed to keep the large 30.5x32 cylinders full of steam. The stokers and power reverse gear were unusual luxuries that the Pennsy rarely applied to freight locomotives, The twin air tanks on the pilot gave the class a distinctive and powerful look and the name "Hippo" became an affectionate reference.

#4483 was no stranger to Western New York, having been assigned to the PRR Ebeenezer, New York yards in the early 50's, and was often seen hauling coal drags up the Elmria Branch to the coal unloading docks in Sodus Bay on Lake Ontario, New York. The locomotive was dropped from equipment records on August 7th, 1957 by PRR Chief of Motive Power, Hal T. Cover with instructions to "Hold as Relic." When the Pennsylvania dieselized, the I1sa's were retired and #4483, one of the last to operate, was preserved and stored with other PRR steam power at the Northumberland, Pennsylvania, roundhouse in 1959 as the last remaining example of the class.

In 1963 the Pennsy sold the engine to the Westinghouse Air Brake Company (WABCO) to display on the front lawn of their headquarters in Wilmerding, Pennsylvania, with the PRR business car the "Ohio." WABCO executives had long wanted a railroad display, since their main product (air brake components) was railroad related. Unfortunately, the equipment was neglected and it soon deteriorated. Sometime during the mid-60's, Westinghouse removed the asbestos boiler insulation but, other than sandblasting and paint, the locomotive received little attention during its stay in Wilmerding. In the fall of 1982, WABCO offered the locomotive to any non-profit organization that could remove it from the property before year's end. Representatives from the Altoona Railroaders Memorial Museum and the WNYRHS inspected the engine in November but the RMM turned the offer down. On November 22nd, 1982, the WNYRHS took official ownership of #4483 and the PRR Business Car the "Ohio."

 Click here to read "#4483's Journey to Buffalo Diary" 

Today, the locomotive is on display and is currently undergoing cosmetic restoration at the Societies work site in Hamburg, New York with its short haul tender.



 Railroad  Pennsylvania
 Builder  Baldwin c/n 56534
 Whyte Classification  2-10-0
 Number in Class  598 - 123 PRR Juniata, 475 Baldwin Eddysyone
 Valve Gear  Walschaert
 Driver Wheelbase  22.67'
 Overall Lenght (engine & tender)  81.75'
 Engine Weight  366,500 lbs - 183.25 tons
 Weight on Drivers  334,500 lbs - 167.25 tons
 Tender Light Weight  182,000 lbs - 91 tons
 Tender Capacity (short haul)  9000 gals water - 17.5 tons coal
 Total Engine and Tender Weight  548,500 lbs - 274.25 tons
 Minimum weight of rail  112 lb/yard
 Driver Diameter  62" - #1, #2, #4, #5 Flanged, #3 Blind
 Boiler Pressure  250 psi
 Cylinders (dia x stroke)  30.5" x 32"
 Firebox Area  312 sq. ft
 Max Speed  50 mph

 Click here to read how four Decapods battled the"SHAMOKIN VALLEY BRANCH" 


Tender is now repainted
"Dark Green Loco Enamel"
with"Dulux"Gold lettering

Backhead showing
Mechanical Stokers
Engineer's side old metal 9/1996New Sheet Metal 7/2003                   


Both rear cab windows have been replaced using original wood frames as patterns. New window
frames were constructed with mortise and tenon joints and glazed with schedule 11 Lexan©.

This is the original Single Note"Banshee Whistle" from #4483   
Updates for Summer of 2002

All Photo's ©2002 - smph50 or Robert Snyder

Updates for Spring 2003
16 Gallons of Fresh Dark Locomotive Green Enamel and Cab Work

Updates for Fall 2004
Fireman's side wainscot complete. Bracing as per original construction
When rear walls are finished, new pressure treated floor-boards will be installed.

Working Drawing - Click to ENLARGE

A "Classic Profile"

#4483 is still undergoing cosmetic restoration at this time and has just recieved a complete paint job in May 2003. Plans for operational restoration are not in the immediate future due to the economic climate and the lack of railroads willing to take on the insurance risks. However, from professional mechanical inspections, the boiler has been found to be sound but will need retubing and flues. The running gear is in good shape with some spring equalizer work needed. Three years prior to retirement, #4483 had gone through a Class 3 overhaul by the Pennsylvania RR, and the Society is striving to keep the I1sa in great condition.

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The WNYRHS, Inc. P.O. Box 416, Buffalo, NY. 14231-0416 is an independent organization and has no affiliation with any other local or national group.
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This page last updated on December 8th, 2016  ©Copyright 1999 - 2017 WNYRHS Inc. all rights reserved

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