General Electric U23B

Quantity Built: 481

8/1968 to 6/1977

 Somebody's Large Digital Image Here
Revised: 25 August 2022 / New: 30 Nov. 2005 Photograph by: xxxxxxx
- Info Supplied by: John Komanesky
Original owner Road Numbers Qty. Bldr Numbers Batch /Order Numbers Bldr Dates
Atchison Topeka & Santa Fe 6300-6323 24 37491-37514 2514/2516 6-10/70
6324-6348 25 37515-37539 2514/2516 10/70-2/71
Chesapeake & Ohio 2300-2339 30 37228-37257 2508 9-10/69
Conrail 2789-2798 10 41584-41593 1412 5-6/77
Delaware & Hudson 301-316 16 36803-36818 2601 8-9/68
Ferrocaril del Pacifico 537-546 10 40820-40829 1404 8-9/75
Lehigh Valley 501-512 12 40098-40109 1437 11/74
Louisville & Nashville 2708-2727 20 38765-38784 1410 1-4/73
2728-2752 25 39257-39281 2579 6-9/73
2753-2772 20 39508-39527 1423 2-4/74
2800-2824 25 40110-40134 1444 12/74-3/75
Milwaukee 4800-4804 5 38872-38876 2575 8/73
Missouri-Kansas-Texas 350-352 3 39225-39227 2577 5/73
Missouri Pacific 668-674 7 38758-38764 2561 1-2/73
2257-2267 11 39905-39915 1447 11/74
2268-2273 8 40356-40361 1464 3/75
2274-2278 5 40920-40924 1407 6/76
2279-2288 10 41523-41532 1414 12/76-1/77
Monon 601-608 8 37293-37300 2512 3-5/70
National de Mexico 9100-9113 14 40326-40339 1484/2812 3/75
9114-9121 8 40340-40347 1484/2812 3-5/75
9122-9129 8 40348-40355 1484/2812 5-6/75
Penn Central 2700-2749 50 38506-38555 2540 8-10/72
2750-2776* 27 39305-39331 2582 8-10/73
Southern Peru Copper 40-45 6 40372-40377 1463 10-11/75
50-57 8 40362-40369 1462 3-5/75
58, 59 2 40370, 40371 1463 10, 11/75
Southern Ry 3900-3904 5 38392-38396 2523 5/72
3905-3914 10 39215-39224 2576 5-6/73
3915-3934 20 39621-39640 1422 5/74
3935-3954 20 40078-40097 1443 5-7/75
3955-3969 15 41508-41522 1409 11/76-2/77
Texas Utilities 103 1 40719 1461 5/75
Western Pacific 2251-2265 15 38397-38411 2525 5-6/72
* 16 of these PC units were equipped with control stands set-up for long hood forward operation,

Source of information: Extra 2200 South

Batch / Purchase Order numbers were compiled Dave Dallner.

General Electric U23B

Technical Data
Drawing and Data by: Jean-Denis Bachand
 
GE Engine FDL-12 (4-cycle, V-Type) 2250 hp Bore & Stroke: 9.0" x 10.5" RPM (Max. / Min.): 1000 / 400 Loco Wgt: 242,000 lbs.
Powertrain Main Gen.: GT581 / GTA-11 Traction Motors: GE-752 (four) Tractive Force (starting): 85,800 lbs @ 25% Tractive Force (continuous): 57,500 lbs @ 11.9 mph T/M Blowers: Mechanical Driven (2)
Trucks Type: B-B (2 axle) or FB-2 Wheel Dia: 40" Speed: 70 mph / Gear Ratio: 74:18 Wheelbase: 9-4"
Operation M/U Capability Dyn. Braking Auxillary Generator: GY27 Air Comp.: Westinghouse 3CDC Air Brake: West. 26L
Capacities

Fuel Oil: 1700 gal.

Lub Oil: 300 gal.

Cooling Water: 350 gal.

Sand: 60 cubic feet (?)

Option: 2900 gal. Fuel

Dimensions Total Length: 60'-2" Bolster: 41'-11" Pilot-to-Pilot (distance): 52'-6" Engine Hood Heighth *: 15'-4.5" Cab Heighth*: 14'-9"
Dimensions Cab Width: 10'-3.5" Top of Walkway: 9'-4.5" Length over handrails: 10'-06.5" Distance between Truck Centers: ?
* Distance is from top of railhead.

Reference Sources:

  • Extra 2200 South, issue #75
  • GE Advanced Generation, 1989, by James W. Kerr
  • GE Locomotives, volumes 1 & 2, 1981, by James W. Kerr
  • Car & Locomotive Cyclopedia, 1984, by Simmons & Boardman
  • The Modern Locomotive Handbook, 1979, Railway Fuel & Operating Officers Assn.
  • Diesel & Electric Locomotive Specifications, 1981, by F. K. Hudson.
  • GE Advanced Generation, 1989, by James W. Kerr
  • GE U23B Manual

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