GE U25B

April 1959 to March 1966

Quantity Built: 478**

Revised: 30 Sept. 2011 Photograph by: Marty Bernard
-- Roster Info: John Komanesky
Original owner Road Numbers Qty Bldr Numbers Batch/Order Nos. Bldr Dates
Atchison Topeka & Santa Fe 1600-1607 8 34246-34253 1321 4-5/62
1608-1615 8 34677-34684 1371 2/63
Chesapeake & Ohio 2500, 2501 2 34566, 34567 1381/1383 8/63
2502, 2503 2 34569, 34570 1381/1383 8/63
2504 1 34568 1381/1383 8/63
2505-2507 3 34724-34726 1381/1383 8-9/63
2508-2537 20 34731-34760 ?? 10/63-1/64
Chicago Burlington & Quincy 100-105 6 35194-35199 1435 9/64
Erie Lackawanna 2501-2512 12 35160-35171 1432 9/64
2513-2527 15 35652-35666 1456 7-8/65
General Electric 751, 752 2 33505, 33506 XP-24 test beds 4, 6/59
753-756 4 34220-34223 1311 - Demos 1-2/61
2501, 2502 2 34239, 34236 1300 - Demos 7/62
2503, 2504 2 34234, 34237 1300 - Demos 7/62
51 1 34561 1364 - Demos 7/63
52 & 53 2 34564, 34565 1364 - Demos 7/63
54 1 34562 1364 - Demos 7/63
** GE Demonstrators #2501-2504 sold to UPRR as 633-636
Great Northern 2500-2506 7 34962-34968 1415 4/64
2507, 2508 2 34984, 34985 1415 4/64
2509-2523 15 35566-35580 1451 4-5/65
Louisville & Nashville 1600-1604 5 34713-34717 1379 6/63
1605-1608 4 34727-34730 1379 8/63
1609-1612 4 34761-34764 1384 11-12/63
1613-1626 14 35130-35143 1426 6-10/64
Milwaukee 380-391 12 35632-35643 1453 6-8/65
New Haven 2500-2509 10 35394-35403 1437 10/64
2510-2525 16 35718-35733 1457 10-11/65
New York Central 2500-2529 30 34986-35015 1418 3-9/64
2530-2559 30 35423-35452 1442 11/64-2/65
2560 1 35700 1458 9/65
2561-2569 9 35691-35699 1458 7-9/65
Norfolk & Western 3515 1 35581 1446 2/65
Pennsylvania 2500-2506 7 34528-34534 1345 8/62
2507-2528 22 34539-34560 1361 9-10/62
2529-2533 5 35124-35128 1423 9/64
2534-2548 15 35530-35544 1444 2-3/65
2649-2658 10 35773-35782 1463 11-12/65
Rock Island 200-205 6 34707-34712 1378 5/63
206-211 6 34718-34723 1378 9-10/63
212-224 13 35111-35123 1421 4-6/64
225-238 14 35701-35714 1452 9-10/65
St. Louis-San Francisco 800 1 34227 1311 12/61
801, 802 2 34231, 34232 1311 11/61
803 1 34229 1311 12/61
804-807 are ex-GE Demonstrators #753-756
808 1 34573 1364 7/63
809, 810 2 34571, 34572 1364 7/63
811 1 34563 1364 7/63
812 and 813 are ex-GE Demonstrators #51 and 54
814 and 815 are ex-GE Demonstrators #52 and 53
816-823 8 35522-35529 1439 3/65
824-831 8 35761-35768 1459 1-2/66
Southern Pacific 7500-7505 6 34240-34245 1325 3-4/62
7506-7511 6 34698-34703 1376 3-4/63
7512-7514 3 34704-34706 1376 4/63
7515-7527 13 34685-34697 1372 3/63
7528-7564 37 34765-34801 1405 1-3/64
7565-7567 3 34959-34961 1405 4/64
Union Pacific 625-627 3 34224-34226 1310 8/61
628 1 34228 1300 8/61
629, 630 2 34238, 34233 1300 5/62
631, 632 2 34230, 34235 1300 5/62
637-640 4 34535-34538 1340 8-9/62
Wabash 500, 501 2 34254, 34522 1330 5, 6/62
502-505 4 34256-34259 1330 5/62
506, 507 2 34519, 34520 1330 8/62
508, 509 2 34521, 34524 1330 8/62
510, 511 2 34523, 34525 1330 8/62
512 1 34526 1330 8/62
513 1 34527 1330 8/62
514 1 34255 1330 8/62

**Total includes four XP24 proto-types

Source of information: Extra 2200 South. Corrections / additions provided by: John Whittingham.

Batch/Order numbers were provided by Dave Dallner.

GE U25B

Technical Data

Drawings and Technical Data Supplied by: Jean-Denis Bachand
POWERTRAIN
Engine: General Electric FDL16 (4-cycle) @ 2500 hp Bore & Stroke: 9.0" x 10.5" RPM (Max. / Min.): 1050 / 650
Main Gen.: GT598 Traction Motors: GE-752 (four) Tractive Force (starting): 75,000 lbs @ 30% Tractive Force (continuous): 64,000 lbs @ 10.7 mph
TRUCKS
Wheel Arrngmnt: B-B Wheel Dia: 40" Turning Radius (min): 39 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: 45'-6" Engine Hood Height: 14'-06.6" Cab Heighth*: 14'-02"
Cab Width: 9'-11" Top of Walkway: 5'-07.6" Length over handrails: 10'-06.5" Distance between Truck Centers: 36'-02"
M/U Capability: Yes Dynamic Braking: Yes Loco Wgt: 252,000 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: 355 gal.

Cooling Water: 290 gal.

Sand: 32 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 Advanced Generation, 1989, by James W. Kerr
  • GE U25B Technical Manual, 1960

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