Identifier: bulletinunitedst2101956unit (find matches)
Title: Bulletin - United States National Museum
Year: 1877 (1870s)
Authors: United States National Museum Smithsonian Institution United States. Dept. of the Interior
Subjects: Science
Publisher: Washington : Smithsonian Institution Press, (etc.) for sale by the Supt. of Docs., U.S. Govt Print. Off.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
hes in diameter, and the driv-ing wheelbase is 20 feet. The later streamlined 4-8-4s of theSouthern Pacific develop 5,500 horsepower at 55 miles anhour, and operate on a boiler pressure of 300 pounds persquare inch. General Electric Locomotive, 1938 A nonoperable model (figure 78) of the first of six2-C + C-2 streamlined electric locomotives built by theGeneral Electric Co. for The New York, New Haven andHartford Railroad Co. was made especially for the Museumcollection (USNM 311880) by the builder of these locomo-tives. The model, constructed in the Bridgeport, Conn., plantof the General Electric Co. and presented to the Museum in1940, is of plaster painted green and black, with gold trim. Itis 31 inches long and has a gauge of 1% inches. The electric locomotives represented by this model werebuilt in 1938 at the Erie, Pa., plant of the General ElectricCo. for passenger service between New Haven and NewYork. Originally numbered from 0361 to 0366, they are nownumbered from 360 to 365.
Text Appearing After Image:
Figure 78.—Model of General Electric locomotive, 1 938. 98 On the New Haven tracks these 77-foot-long locomotivesoperate on 11,000-volt, single-phase, 25-cycle, alternatingcurrent obtained from an overhead trolley system. On theNew York Central tracks they operate on 660-volt directcurrent obtained usually from a third rail, but occasionallyfrom an overhead supply at some crossover switches. For thislatter purpose a small auxiliary pantograph is used. Controlequipment is, of course, provided for both types of powersupply. The fully loaded weight is 433,200 pounds, of which272,400 pounds is on the twelve 56-inch drivers. While oper-ating on alternating current, the continuous tractive force is24,100 pounds, and the continuously available horespower3,600. The maximum available horsepower from the sixtwin-armature, 12-pole motors is 7,600. Slightly differentresults are obtained while operating on direct current. Themaximum safe speed is 93 miles an hour. American Locomotive Co. Hudson-

Note About Images