Pacifics

Pacifics have a 4-6-2 wheel arrangement based on Whyte's system.
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Chesapeake & Ohio 492, a heavy Pacific. Note the Elesco feed water heater anddual front-mounted cross-compound air compressors. This locomotive was used on a namedtrain. The placard on the tender appears to read "The George Washington."
Atlantic Coast Line number 1675 is a heavy USRA Pacific used in freight service.This engine has a delta-type trailing truck and Walschaerts valve gear. This enginewas built for the USRA by Baldwin during World War I.
A Special Note:A special thanks to John McNulty who has provided an updated description of ACL #1675.This is a U.S.R.A. Light Pacific not a U.S.R.A. Heavy as the caption reads. ACL had two groups of very similar U.S.R.A. type light pacifics. They breakdown as follows:
- Class P-5A standard U.S.R.A. Light Pacifics with 73" diameter drivers weredelivered to the ACL via U.S.R.A. in 1919. ACL then bought more P-5A's exactly the same untilthey numbered from 1500 to 1569. They were built by the Richmond Works andBrooks Works from 1919 to 1920. They all had the Cole Scovill trailing trucks with afabricated frame that was the standard on U.S.R.A. engines.
- The K-5A were originally used in passenger and freight work. They were found to besomewhat unsuited for freight work with the 73" drivers so they became the ACL'sstandard main line passenger engine. One K-5A #1504, built for the U.S.R.A. byRichmond, is preserved in Jacksonville, FL.
- The ACL then turned to Baldwin to modify the design to make it moresuitable as a freight engine. The result was Class K-5B with 69" drivers.They were intended to be dual service engines and usually worked in freight service,but they also worked passenger runs. They were numbered from 1600 to 1764 and were built between 1922 and 1926. Numbers 1600 to 1669 had Cole Scovill trailing trucks with fabricated frames and 1670 to 1764 had Commonwealth Delta trailing trucks with cast frames.
Here are the specifications for Atlantic Coast Line 4-6-2 # 1675:
- Class K-5B
- Cylinders 25" x 28"
- Drivers 69"
- Engine Weight 286,345 lbs.
- Steam Pressure 210 p.s.i.
- Tractive Effort 45,275 lbs.
- Built by The Baldwin Locomotive Works in 1924 for the Atlantic Coast Line Railroad
Reference: Prince, Richard E., Atlantic Coast Line Railroad, SteamLocomotives, Ships, andHistory, Green River, WY, Richard E. Prince 1966, pages 136 to 151, 218, 222 to 224
This view of the Chicago & North Western Railroad terminal yard in downtown Chicagowas taken from the roof of the main terminal interlocking plant at Canal and Lake Streets.The commuter train in the image is an express from Racine, Wisconsin being pulled by engine 2207.
Chesapeake & Ohio engine 461 is a Vanderbilt tender-equipped medium Pacific. Seen at theWashington, D.C. terminal, this engine is classed F-16 by the railroad and was built at theBaldwin Locomotive Works in 1913. These engines have been suplimented by newer Pacific typelocomotives pictured elsewhere in this collection. Specifications include 27"x28" cylinders,73" drivers, 185 psi boiler pressue, 290,000 lbs. without tender, and produces 43,950 lbs. TE.
A Super Pacific of the Southern Railway at Greensboro, North Carolina. Engine No. 6482 was used in fast passenger service. Here the locomotiveis coupled to the "Crescent Limited" crack flier. ALCO built this locomotive which is equippedwith an Elesco feed water heater, power reverse, and a mechanical stoker.
Modern locomotive construction on the Deleware and Hudson. Engine 653 was built in 1934 at the company's Colonie Shops."Scientifically" streamlined and equipped with R.C. Poppet valve gear, this engine also sported22"x30" cylinders, 325 lbs. psi boiler pressure, and produced 56,000 lbs. of tractive effort.
Pere Marquette Railroad's number 721 is on the truntable at the B & O Chicago Terminal Roundhouse onDamen Avenue at 14th Street. This locomotive, built by ALCO in 1920, was used on the Chicago toGrand Rapids run in fast passenger service.
Kanawha & Michigan (New York Central System) Railroad number4716, a large Pacific on a train at Charleston, West Virginia.The railroad classed these engines as K-41.
Just shopped Southern locomotive1367 is equipped with a Worthington feed water heater and pump.The American Locomotive Company (ALCO) built this Pacific.
Richmond, Fredricksburg & Potomac engine 405 is captured at Alexandria, Virginia in freght service.Equipped with an Elesco feed water heater, stoker, booster, and automatic train control,23.5" x 28" cylinders, 69" drivers, 200 lbs. psi boiler pressure, and weighing 492,900 lbs.with tendr, this engine exerts 59,950 lbs. tractive effort. The tank car behind the tenderis used as an auxillary (water) tender for the locomotive.
Erie Railroad number 2924 is a large Pacific preparing for a run on Shriner'sSpecial East at Marion, Ohio. Baker valve gear and an Elesco feed water heater complimentthis locomotive.
Mile-a-minute service on the B & O Railroad! Pacific 5180 is the first of two engines leading the fourth sectionof "The Capitol Limited," today running as the "Firestone Tire Company Special." Thetrain is crossing the Belt Railway Company of Chicago tracks at the B & O ChicagoTerminal Company's (BOCT) 134-lever tower at 75th street in Chicago, Illinois. Thedate is September 4th, 1933 (Labor Day), and the train is making about 60mph.
Cleveland, Cincinnati, Chicago, & St. Louis (New York Central Lines) engine 6523 taking on water at St. Louis, Missouri. Used infast passenger service, this engine is equipped with an Elesco feed water heaterand pump, stoker, booster, and power reverse.
Bangor & Aroostook engine 254 is representative of the large Pacifics, the lateston the BAR. ALCO built this locomotive with 21" x 28" cylinders, and 69" drivers.The engine with tender weighs 398,000 lbs., and at 210 lbs. psi boiler pressure,produces 32,000 lbs. tractive effort.
Rutland's largest pacific, number 83 was built by ALCO, and is classed K-2 by the railroad.Specifications include 25" x 28" cylinders, 215 lbs. psi boiler pressue, and 73" drivers.This brute weighs in at 494,800 lbs. with tender and exerts 43,800 lbs. tractive effort.
One of the Canadian Pacific's large 4-6-2s, number 2715 on the turntable at the new locmotive terminal at Toronto,Ontario. The engine was built by the Montreal Locomotive Works and is equipped withtrain control, an Elesco feed water heater, and a large 12-wheeled teneder. The CP has(at the time of the photo) 18 such locomotive in service. Pumping 200 lbs. psi boilerpressure into 24.5" x 30" cylinders, with 70" drivers, this engine weighs 306,500 lbs.with the tender, and produces 44,000 lbs. tractive effort.
The Central Railroad of New Jersey uses these large Pacifics to handle their limiteds.Here, number832 prepares for a run on the "Blue Comet" at Jersey City, New Jersey.This Baldwin built engine has an Elesco feed water heater and weighs in at 33,830 lbs. without the tender. The engine is capable of producing 52,180 lbs. of tractive effort.
Boston and Maine, number 3708 is a large Pacific type which have this year (1934) beensuplimented by five new 4-6-2s. This engine was built by ALCO and is equipped witha trailer booster and Worthington feed water heater and pump. Specifications for thisP-3a class include 24"x28" cylinders, 73" drivers, 200 lbs. psi boiler pressure, a weight of 236,000 lbs.without tender, 37,600 lbs. tractive effort without booster, and 46,975 lbs. with the boostercut in.
One of the Pennsy's famous K-4s Pacifics at the Washington D.C. Terminal.Engine 3371 has 27"x28" cylinders, 80" drivers, 205 lbs. psi boilerpressure, weighs 309,000 lbs. without the tender and exerts 44,460 lbs. tractive force.
A Special Note:Thanks to John McNulty for corrections to the description of this image.Although Mr. Schenzinger had identified this as a K4s Pacific, it is, in reality, amuch rarer image. This locomotive is one of only two class K2sb Pacifics built inthe Juniata shops in 1911. The other K2sb was numbered 3375. According to AlvinStaufer in his book "Pennsy Power," the engines were identical to class K2 except for72" drivers rather than 80". Both engines had the KW type cast trailing truck instead of the usual fabricated types used on classes K-2 and K-3. The KW types were later replaced with Commonwealth Delta type trailing trucks. K2sb specs: Cylinders: 24"x26", Drivers: 72", BoilerPressure: 205 lbs., Weight on drivers: 192,500 lbs., Engine weight: 286,000 lbs.,and 32,620 lbs. tractive effort. Again, mysincere thanks to Mr. McNulty for this correcting information and the pointer to Staufer'swork!
Chicago, Burlington, & Quincy number 2950 is equipped with a Worthington feed water heater, has 25"x28"cylinders and 69" drivers. The engine weighs 236,100 without the tender.
Pennsylvania Railroad number 5493 is shown leading a four car air conditioned train out of Columbus,Ohio.
Missouri Pacific Railroad 6447 is at Kansas City, Missouri. This engine is equipped with anElesco feed water heater, power reverse and a large 12-wheeled tender.
One of the largest Pacific types in use today (1934), Chicago, St. Paul, Minneapolis, andOmaha (Chicago & North Western) number600 is equipped with an engine and tender booster, and an outside-bearingtrailing truck. ALCO built this engine with 25"x28" cylinders, 75" drivers, and 260 lbs. psi boilerpressure capability. The engine weighs 619,000 lbs. with tender and produces 51,300 lbs. tractiveeffort without boosters and 64,400 lbs. with boosters cut in.
Missouri, Kansas, and Texas (Katy) number411, a heavy Lima oil burning 4-6-2 on a train at Muskogee, Oklahoma.The engine is equipped with a Walscheart valve gear and a trailer booster.
A large Pacific type of the Chicago and Alton Railroad, number 5276 (B&O renumbereing) is awaiting President Hoover's specialtrain at Peoria, Illinois. Classed P-15, the engine has 23"x28" cylinders, 77" drivers,and produces 32,800 lbs. of tractive effort.
Chicago, Indianapolis and Louisville, better known as the Monon, engine 445 was built by Alco in 1923. Classed K-5a by the railroad, theengine is equipped with a booster and capped stack. The photo was taken at Louisville, Kentucky.Number 45 has 23"x28" cylinders, 73" drivers, weighs 407,000 lbs. with the tender, and exerts34,500 lbs. tractive force.
"The Capitol Limited" is captured rounding the bend near the B & O Chicago Terminal Roundhouse at 14th Street and Damen Avenue on Chicago's South side. Engine number 5172 leads this double-headed 16 Pullman car train out of Chicago.
Fast passenger service on the Boston & Albany! Engine 587 is spotted near Boston, Mass.
Rounding out the collection of Pacific type locomotives is Chicago and Alton Railroad's 5274 making 65 MPH slamming across the AT&SF diamond at Corwith, Illinois.The train is "The Hummer," a C & A crack passenger train. At this point in time, the C & A iswholly owned by the B & O.

Pacifics

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