General Electric U23B

Quantity Built: 481

8/1968 to 6/1977

 Somebody's Large Digital Image Here
Revised: 9 July 2012 Photograph by: Chuck Maxim
- Info Supplied by: John Komanesky
Original owner Road Numbers Bldr Numbers Batch /Order Numbers Bldr Dates
Atchison Topeka & Santa Fe 6300 - 6323 37491-37514 2514/2516 6-10/70
6324 - 6348 37515-37539 2514/2516 10/70-2/71
Chesapeake & Ohio 2300 - 2329 37228-37257 2508 9-10/69
Conrail 2789 - 2798 41584-41593 1412 5-6/77
Delaware & Hudson 301 - 316 36803-36818 2601 8-9/68
Lehigh Valley 501 - 512 40098-40109 1437 11/74
Louisville & Nashville 2708 - 2727 38765-38784 1410 1-4/73
2728 - 2752 39257-39281 2579 6-9/73
2753 - 2772 39508-39527 1423 2-4/74
2800 - 2824 40110-40134 1444 12/74-3/75
Milwaukee 4800 - 4804 38872-38876 2575 8/73
Missouri-Kansas-Texas 350 - 352 39225-39227 2577 5/73
Missouri Pacific 668 - 674 38758-38764 2561 1-2/73
2257 - 2267 39905-39915 1447 11/74
2268 - 2273 40356-40361 1464 3/75
2274 - 2278 40920-40924 1407 6/76
2279 - 2288 41523-41532 1414 12/76-1/77
Monon 601 - 608 37293-37300 2512 3-5/70
Penn Central 2700 - 2749 38506-38555 2540 8-10/72
2750 - 2776* 39305-39331 2582 8-10/73
Southern Ry 3900 - 3904 38392-38396 2523 5/72
3905 - 3914 39215-39224 2576 5-6/73
3915 - 3934 39621-39640 1422 5/74
3935 - 3954 40078-40097 1443 5-7/75
3955 - 3969 41508-41522 1409 11/76-2/77
Texas Utilities 1 40719 1461 5/75
Western Pacific 2251 - 2265 38397-38411 2525 5-6/72
MEXICO
Ferrocaril del Pacifico 537 - 546 40820-40829 1404 8-9/75
National de Mexico 9100 - 9113 40326-40339 1484/2812 3/75
9114 - 9121 40340-40347 1484/2812 3-5/75
9122 - 9129 40348-40355 1484/2812 5-6/75
PERU
Southern Peru Copper 40 - 45 40372-40377 1463 10-11/75
50 - 57 40362-40369 1462 3-5/75
58, 59 40370, 40371 1463 10, 11/75
* 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.

GE U23B

Technical Data
Drawings and Technical Data Supplied by: Jean-Denis Bachand
POWERTRAIN
Engine: General Electric FDL12 (4-cycle) @ 2250 hp Bore & Stroke: 9.0" x 10.5" RPM (Max. / Min.): 1050 / 400
Main Gen.: GT581 / GTA-11 Traction Motors: GE-752 (four) Tractive Force (starting): 85,800 lbs @ 25% Tractive Force (continuous): 90,000 lbs @ 10.7 mph
TRUCKS
Wheel Arrngmnt: B-B (2 Axle) or FB-2 Wheel Dia: 40" Turning Radius (min): 21 degrees Wheelbase: 9'-04"
M/U Capability Dyn. Braking Loco Wgt: 252,000 lbs. Speed: 70 mph / Gear Ratio: 74:18
SPECIFICATIONS / DIMENSIONS
Total Length: 60'-2" Locomotive Wheel Base: ?? Engine Hood Height: 15'-04.5" Cab Heighth*: 14'-09"
Cab Width: 9'-11" Top of Walkway: 5'-07.6" Length over handrails: 10'-03.5" Distance between Truck Centers: ??
M/U Capability: Yes Dynamic Braking: Yes Loco Wgt: 242,000 lbs. Speed: 70 mph / Gear Ratio: 74:18
T/M Blower (2): Mechanical Driven Auxillary Generator: GY27 Air Comp.: Westinghouse 3CDC Air Brake: Westinghouse 26L
CAPACITIES

Fuel Oil: 1700 gal. or 2900 gal.

Lub Oil: 300 gal.

Cooling Water: 350 gal.

Sand: 60 ? cubic feet
NOTES & CREDITS
* Height Dimensions are 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 U23B Technical Manual

General Electric U23C

Quantity Built

223 Units

3/1968 to 9/1970

 Somebody's Large Digital Image Here
New: 5 November 2004 Photograph by: xxxxxxx
Revised: 23 October 2010 Info Supplied by: John Komanesky
Original owner Road Numbers Qty. Bldr Numbers Bldr Dates
Atchison Topeka & Santa Fe 7500-7512 13 37098-37110 2515 6/69
7513-7519 7 37111-37117 2515 7/69
Chicago Burlington & Quncy 460-468 9 36988-36996 2510 4/69
Lake Superior & Ishpeming 2300, 2301 2 36706, 36707 2500 3, 4/68
2302 1 37138 2509 9/69
2303, 2304 2 37572, 37573 2511 9/70
Penn Central 6700-6703 4 37540-37543 2525 10/70
6704 1 37544 2525 11/70
6705, 6706 2 37545, 37546 2525 10/70
6707-6709 3 37547-37549 2525 11, 10, 11/70
6710, 6711 2 37550, 37551 2525 10/70
6712-6718 7 37552-37558 2525 11/70
U23C (Built by GE do Brazil)
Rede Ferrviaria Federap S.A.(Brazil 3801-3880 80 2500247-2500346 ?? 12/72-7/74
3901-3920 20 2500603-2500622 40608-40627 40608-40623 9-11/75
3921-3990 70 2500623-2500692 ?? 1972-1976

Source of information: Extra 2200 South

Batch / order numbers provided by Dave Dallner.

General Electric U23C

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: 348,000 lbs.
Powertrain Main Gen.: GT598 Traction Motors: GE-752 (four) Tractive Force (starting): 85,800 lbs @ 25% Tractive Force (continuous): 90,000 lbs @ 10.7 mph T/M Blowers: Mechanical Driven (2)
Trucks Type: C-C (3 axle) Wheel Dia: 40" Speed: 70 mph / Gear Ratio: 74:18 Turning Radius (min): 39 degrees Wheelbase: 13'-9"
Operation M/U Capability Dyn. Braking Auxillary Generator: GY27 Air Comp.: Westinghouse 3CDC Air Brake: West. 26L
Capacities

Fuel Oil: 1700 gal.

Lub Oil: 355 gal.

Cooling Water: 290 gal.

Sand: 32 cubic feet

Option: 2900 gal. Fuel

Dimensions Total Length: 67'-3" Bolster: 41'-11" Pilot-to-Pilot (distance): ? Engine Hood Heighth *: 15'-2" Cab Heighth*: 15'-4"
Dimensions Cab Width: 10'-3.5" Top of Walkway: 9'-1.5" Length over handrails: 10'-06.5" Distance between Truck Centers: 54'-6""
* 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

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