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Old 06-15-2011, 11:02 AM  
mohel
 
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Transportation

Transportation

The B&O Museum is in Baltimore a few blocks from the Aquarium and the USS Constellation in the harbor.
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Old 06-15-2011, 11:10 AM  
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So awesome to see our heritage being preserved. Thanks for sharing this Blucher. Great photos! You ought to put up a few pictures of the mightiest steam locomotive of them all....... The gigantic "Union Pacific Big Boy"! 132 feet long with a wheel base of 117 feet and some 540 tons. YUP! I was a hardcore railroader 30 plus years ago.
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Old 06-15-2011, 11:29 AM  
mohel
 
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Transportation II

I knew India didn't have much of a road system relying mostly on trains but I was surprised at what passed for Indian trucking.
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Old 06-15-2011, 12:17 PM  
mohel
 
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Quote:
The gigantic "Union Pacific Big Boy"! 132 feet long with a wheel base of 117 feet and some 540 tons. YUP! I was a hardcore railroader 30 plus years ago.
I may well have it but not with Big Boy on it. I lived in Reading (Reading RR) for several years. When they phased out cabooses every siding in town was crowded with blue cabooses waiting to be scrapped. At least one guy bought a bunch and made them into motel rental units.
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Old 06-15-2011, 01:21 PM  
mohel
 
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more Transportation

Union Pacific Big Boy
From Wikipedia, the free encyclopedia

HTML Code:
http://en.wikipedia.org/wiki/Union_Pacific_Big_Boy
Big Boy was the name given to the Union Pacific Railroad's twenty-five 4000 class 4-8-8-4 articulated steam locomotives built between 1941 and 1944 by Alco.

Quote:
Background

The Union Pacific Railroad introduced the Challenger-type (4-6-6-4) locomotives in 1936 on its main line across Wyoming. For most of the distance the maximum grade is 0.82% in either direction, but the climb eastward from Ogden, Utah up the Wasatch grade (Wahsatch, on the railroad) is 1.14%, demanding a locomotive with greater tractive effort and horsepower to eliminate doubleheading and helper operations. In collaboration with the American Locomotive Company, the UP's design team, headed by Otto Jabelmann, re-examined the original Challengers designed by A.H. Fetters. They found that by increasing the firebox to approximately 235 by 96 inches (6.0 ? 2.4 m) (about 155 sq ft/14.4 m2), lengthening the boiler, adding four driving wheels and reducing the size of the driving wheels from 69 to 68 in (1.753 to 1.727 m), they could achieve that goal.
[edit]History

The Big Boys were the only locomotives to have the 4-8-8-4 wheel arrangement, combining two sets of eight driving wheels with a four-wheel leading truck for stability entering curves and a four-wheel trailing truck to support the large firebox.
The Big Boys were designed to pull a 3,600 short ton (3,300 t) freight train over the long 1.14% grade of the Wasatch Mountains in Utah. Before their arrival, helpers were needed. Adding and removing helpers from a train slowed them down. For such locomotives to be worthwhile, they had to be faster and more powerful than slow mountain luggers like the earlier compound 2-8-8-0s that Union Pacific ("UP") tried after World War I. To avoid locomotive changes, the new class would need to pull long trains at sustained speed?60 miles per hour (100 km/h)?once past the mountain grades. Towards the end of the 4000's career (in the late 1950s) it was found that they could still pull more than their rated tonnage of 3,600 tons (3,300 t). Their ratings were increased several times until they regularly pulled 4,450 short tons (4,040 t) up the Wasatch grade, unassisted.
They are articulated, per the Mallet locomotive design, but used simple (single) rather than double expansion, unlike the original Mallet design.
They were designed for stability at 60 miles per hour (100 km/h). They were built with a heavy margin of reliability and safety, as they normally operated well below that speed in freight service. Peak horsepower was reached at about 35 mph (56 km/h); optimal tractive effort, at about 10 mph (16 km/h).
25 Big Boys were built, in two groups of ten and one of five. All were coal burning, with large grates to burn low quality Wyoming coal from mines owned by the railroad. One locomotive, #4005, was experimentally converted to oil. Unlike experience with the Challenger types, this was not successful, and the locomotive was soon changed back to coal. The cited reason for this failure was the use of a single burner, which, with the Big Boy's large firebox, created unsatisfactory and uneven heating. It is unknown why multiple burners were not employed, though with dieselization in full swing after 1945 the company probably lost interest in further development of steam.
Postwar increases in the price of both coal and labor and the efficiency of diesel-electric motive power foretold a limited life for the Big Boys, but they were among the last steam locomotives taken out of service. The last revenue train hauled by a Big Boy ended its run early in the morning on July 21, 1959. Most were stored operational until 1961, and four remained in operational condition at Green River, Wyoming until 1962. Their duties were assumed by diesels and turbines.
Quote:
Power type Steam
Reference:[1]
Builder American Locomotive Company
Build date 1941 (20), 1944 (5)
Total production 25
Configuration 4-8-8-4
UIC classification (2′D)D2′ h4
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Leading wheel diameter 36 in (914 mm)
Driver diameter 68 in (1,727 mm)
Trailing wheel diameter 42 in (1,067 mm)
Wheelbase 72 ft 5.5 in (22.09 m)
Length Locomotive: 85 ft 3.4 in (25.99 m)
Overall: 132 ft 9? in (40.47 m)
Width 11 ft (3.4 m)
Height 16 ft 2? in (4.94 m)
Weight on drivers 540,000 lb (244,939.9 kilograms)
Locomotive weight 762,000 lb (345,637.4 kilograms)
Tender weight 342,200 lb (155,219.3 kilograms) (2/3 load)
Locomotive and tender combined weight 1,250,000 lb (566,990.5 kilograms)
Fuel type Coal
Fuel capacity 30 short tons (27.2 t)
Water capacity 22,000 U.S. gal (83,000 l; 18,000 imp gal)
Boiler 95 in (2,400 mm)
Boiler pressure 300 lbf/in? (2.1 MPa)
Fire grate area 150 sq ft (14 m2)
Heating surface: Tubes and flues 5,035 sq ft (468 m2)
Heating surface: Firebox 720 sq ft (67 m2)
Heating surface: Total 5,735 sq ft (533 m2)
Superheater type Type A
Superheater area 2,043 sq ft (190 m2)
Cylinders Four
Cylinder size 23.75 ? 32 in (603 ? 813 mm)
Top speed 80 mph (130 km/h)
Tractive effort 135,375 lbf (602.18 kN)
Factor of adhesion 4.11
Career Union Pacific Railroad
Class 4000?4019: 4884-1
4020?4024: 4884-2
Last run July 21, 1959
Preserved 4004, 4005, 4006, 4012, 4014, 4017, 4018, 4023
Disposition Eight preserved, remainder scrapped.
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Old 06-15-2011, 01:42 PM  
mohel
 
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Transportation
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Old 06-15-2011, 05:08 PM  
mohel
 
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Transportation
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Old 06-15-2011, 10:09 PM  
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Big Boy & Company
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Old 06-15-2011, 10:59 PM  
mohel
 
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Transportation
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Old 06-15-2011, 11:50 PM  
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Large version: {4 MBs}
http://www.modeltrains.com/PICTURES/...-AA-1289-1.JPG
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