Post Description

Hi All,
Deze post heb ik al eens eerder 'gepost' maar toen was de betreffende dvd van iemand anders die ik gevonden had in binsearch. 
Nu heb ik mijn EERSTE POST met EERSTE UPLOAD :) [flag] ik ben benieuwd of het is gelukt, het duurde een godseeuwigheid eerdat de upload klaar was.
Nu: 6-6-2011 om 19:19uur is de laatste file geuupload.
Het kan wel een uurtje of wat duren eerdat de servers in sync zijn dus niet meteen gillen dat er files niet volledig zijn :) (lol)

Geniet van deze geweldige dvd.....
rcmarc


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.


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 9¼ in (40.47 m)
Width  11 ft (3.4 m)
Height  16 ft 2½ 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/in² (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.