Three Cylinder Steam Locomotives

As far as I know, there are only five surviving 3-cylinder rod steam locomotives in the United States (this, of course, does not include all of the 3-cylinder Shay type locomotives). They include:

Southern Pacific 4-10-2 Number 5021

Souther Pacific 3-cylinder 5021 This is the only surviving Southern Pacific three-cylinder 4-10-2 (out of 49). The first of this type was built in 1925 by ALCO. The first axle is cranked to allow clearance for the center connecting rod on the second axle. The Southern Pacific named this wheel arrangement after their own name (Southern Pacific). The Union Pacific also had locomotives (10) of this wheel arrangement (none survived). They named them "Overlands". This locomotive has 63 inch drivers. With its three cylinders, it could develop 4,100 HP. Its top speed was 60 MPH. They were used for both freight and passenger service over Donner Pass until it was determined that they were too rigid for the curves on that line. 5021 came to this museum under her own power. 5021 is in maintained in excellent condition.

Union Pacific 4-12-2 Number 9000

Please see 4-12-2 Type Steam Locomotives

Alton & Southern 0-8-0 12

Alton & Southern 12 This Alton & Southern 0-8-0 is located at the Museum of Transportation in St. Louis, MO. It was built by ALCO in 1926 and cost $57,598.20. It ran up 622,626 miles in service and was donated to the museum in 1948. Here is the locomotive data from its builders photo:

American Locomotive Company
New York
Class 080 S 243, "Three-Cylinder"Road Number 12
Built for the Alton & Southern
Gauge of TrackCylindersDriving Wheel DiameterBoilerFire BoxTubes
DiameterStrokeInside DiameterPressureLengthWidthNumberDiameterLength
4'-8 1/2"22"28"57"76"200 lbs96"84 1/4"239
38
2"
5 1/2"
16'-0"
Wheel BaseWeight in Working Order - Pounds
DrivingEngineEngine & TenderDrivingEngineTender
16'-4"16'-4"54'-6 3/4"242500242500169400
FuelEvaporating Surfaces, Square Ft.Superheating Surface Square Ft.Grate Area Sq. Ft.Maximum Tractive PowerFactor of Adhesion
KindTubesFluesFire BoxArch TubesTotal
Soft Coal199187118623307174056.160600 lbs4.0
Tender Type 8-Wheeled.Capacity Water 9000 galsFuel 14 tons
Order No S-1560
September, 1926

London & North Eastern Railway 4-6-2 60008

London & North Eastern 3-cylinder 60008 This three cylinder Pacific, named Dwight D. Eisenhower, is displayed at the National Railroad Museum in Green Bay, Wisconsin. It was originally named Golden Shuttle but was renamed in late 1945. It was built by the LNER as the A4 class, introduced in Sept 1935. There were 35 in the class. When British Railways was formed in 1946 by the amalgamation of four "Groups", there was some number duplication on locomotives. Block numbers were allocated the four former groups of locomotives. Former LNER locos were numbered in the series starting at 60000. That is how 60008 (formerly number 8) came about.

Specifications

Boiler
Boiler max. O.D.:6' - 5"
Grate area:41.2 sq. ft.
Heating surface firebox + combustion chamber:231 sq ft
Total evaporative surface:2576 sq ft
Length between tube plates:17' - 11.75"
Superheater surface:750 sq ft
Operating pressure:250 psi
Engine
Cylinders:(3) 18.5" dia by 26" stroke
Valve Gear:Walschaerts with Gresley derived motion for inside cylinder
Piston Valves:9"
Steam lap/Max travel:1 5/8" / 5 3/4"
Vehicle
Locomotive Weight:102 ton 19 cwt
Tender Weight:64 ton 3 cwt
Tender capacity:8 tons coal, 5000 gallons water
Axle weight:22 tons
Data taken from "British Locomotive Classes" Promotional Reprint Company 1996. First published by the Locomotive Publishing Company 1945 entitled Modern Locomotive Classes. The locos modified during the war, with sections of the streamline casing removed, so the weights may be wrong for your engine. Further, some engines had double chimneys with Kylchap exhaust systems. The record breaking engine Mallard (126 mph) was so equipped.

Baldwin Demonstrator Number 60000

With the year 1926 came an outstanding event in Baldwin's history, for at that time the Works was ready to build its sixty-thousandth locomotive. To symbolize this event President Samuel M. Vauclain planned and built a huge three-cylinder compound, high-pressure locomotive. It was of the 4-10-2 type and closely resembled engines with this wheel arrangement on the Southern Pacific Railroad. To safely accommodate the high boiler pressure of 350 lb. per square inch, a water-tube firebox was used.

From the book The Locomotives that Baldwin Built by Fred Westing

Baldwin 3-cylinder 60000 Built as a Baldwin demonstrator in 1926, this locomotive was used by various railroads around the country to show some of Baldwin's latest ideas. It was numbered 60000 to commemorate the 60,000th locomotive to be built by the Baldwin Locomotive Works. It ran successfully on either coal or oil as fuel. It also attained the highest power ever developed up to the time on the Altoona test plant, namely, 4,500 horsepower. This, at the time, exceeded the plant's capacity and restricted attempts to obtain greater power with additional tests. It has several features which made it unique: NOTE: If you look carefully under the smokebox front, you will see the center high-pressure cylinder and steam chest. This cylinder is angled downward to the back. The piston is connected via a crank to the second set of drivers.

The numbers 60000 appear on the cab side, and on the number boards and headlight of the engine. The tender lettering reads THE BALDWIN LOCOMOTIVE WORKS. The tender is a Vanderbilt with a short coal space and 6-wheel trucks. Here are a few more specifications on the 60000:

Although there were not any serious problems with it, the railroads rejected it because they found it overly heavy and complex and were wary of most of its features. Also, the 4-8-4 was quickly becoming the ideal high-speed, heavy freight and passenger locomotive. With only 100,000 miles on it (very little for a steam locomotive), it was returned to Philadelphia in 1928 and stored until 1932 when it was donated to the Franklin Institute Science Museum in Philadelphia, PA.

It is on display there today in the basement on a short piece of track. A hydraulic system is used to move the locomotive back and forth about fifteen feet. The demo was once propelled by a worm gear. It was changed over to a hydraulic system in the mid 1970s. By that time, the bearings in the drivers had become egg shaped, supposedly because of all the reversing, and some BLH retirees figured out how to replace them. The distance traveled inside the museum was staggering for such a short trip: conservatively, 30 ft/trip x 2 trips/demo x 5 demos/day x 360 operating days/yr = about 20 miles/yr, or about 400 miles in reverse by 1980.

Other Pages on the Baldwin 60,000

Other 3-Cylinder Steam

Baldwin built a batch of 3-cylinder pacifics for the EFCB (Central of Brazil) in 1927. They were broad gauge machines (5ft 3") (Brazil Central had both 5'-3" and Metre gauge lines). One of these is preserved in working order and operates about once a month. It is stored at the Museum of the Immigrants in Sao Paulo.

Photos

3-Cylinder Steam Reference

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