Steam Loco Class Information

Class Details

Introduced 1901. Robinson GCR design.
Original sub class details:
Tenders : J11/1 & J11/4 - 3,200 gallon, J11/2 & J11/5 - 4,000 gallon.
J11/1 & J11/2 - high boiler mountings, J11/4 & J11/5 - low mountings.
J11/4, J11/5 plus some J11/1 & J11/2 were superheated. All superheated
with low boiler mountings by 1952 and classified J11.
64317/24/79/93/4/5 & 64420 rebuilt by BR to J11/3.

Weight:
Loco 51 tons 19 cwt (not Su) Driving Wheel: 5' 2"
52 tons 2 cwt (Su)
Tend 44 tons 3 cwt (3,200 g) Boil Press: 180lb/sq in SS
48 tons 6 cwt (4,000 g)
Cylinders: Valve Gear: Stephenson (slide valves)
Two 18?" x 26" (inside) TE: 21,960 lb

Total Locos for Class - 147

64280
64281
64282
64283
64285
64286
64287
64289
64290
64291
64292
64293
64294
64295
64296

64297
64298
64299
64300
64301
64302
64303
64304
64305
64306
64307
64308
64309
64310
64311

64312
64313
64315
64319
64320
64321
64322
64323
64324
64325
64326
64327
64328
64329
64330

64331
64334
64335
64336
64337
64338
64339
64340
64341
64342
64343
64344
64345
64347
64348

64349
64350
64351
64353
64355
64356
64357
64358
64360
64361
64363
64365
64366
64367
64368

64369
64370
64371
64372
64374
64376
64377
64378
64379
64380
64381
64382
64383
64384
64385

64387
64388
64389
64390
64391
64392
64393
64395
64396
64397
64398
64399
64400
64401
64403

64404
64405
64407
64408
64409
64410
64411
64412
64413
64414
64415
64416
64419
64420
64421

64422
64423
64424
64425
64426
64428
64429
64430
64431
64432
64433
64434
64435
64436
64437

64438
64440
64443
64444
64445
64446
64447
64448
64449
64451
64452
64453