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.
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 Track | Cylinders | Driving Wheel Diameter | Boiler | Fire Box | Tubes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Diameter | Stroke | Inside Diameter | Pressure | Length | Width | Number | Diameter | Length | ||
| 4'-8 1/2" | 22" | 28" | 57" | 76" | 200 lbs | 96" | 84 1/4" | 239 38 | 2" 5 1/2" | 16'-0" |
| Wheel Base | Weight in Working Order - Pounds | ||||
|---|---|---|---|---|---|
| Driving | Engine | Engine & Tender | Driving | Engine | Tender |
| 16'-4" | 16'-4" | 54'-6 3/4" | 242500 | 242500 | 169400 |
| Fuel | Evaporating Surfaces, Square Ft. | Superheating Surface Square Ft. | Grate Area Sq. Ft. | Maximum Tractive Power | Factor of Adhesion | ||||
|---|---|---|---|---|---|---|---|---|---|
| Kind | Tubes | Flues | Fire Box | Arch Tubes | Total | ||||
| Soft Coal | 1991 | 871 | 186 | 23 | 3071 | 740 | 56.1 | 60600 lbs | 4.0 |
| Tender Type 8-Wheeled. | Capacity Water 9000 gals | Fuel 14 tons |
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.
| 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 |
From the book The Locomotives that Baldwin Built by Fred Westing
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:
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:
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.
