Class 25 Locomotive Performance

Talerddig Incline (Machynlleth - Caersws)    

Gradient 1 in 52.5 from MP 64.5 to MP 61.75

Note: you can access the individual train logs using links from the Train column

 

Locos

Train

Date

Load

EDBHP

RAILHP

Speed MPH

 

 

 

 

 

 

Av.

Min

25079 / 25186

1605 Shrewsbury 2J57

19/06/82

11 / 392 / 417

 

1681

30

25

25194 / 25235

1605 Shrewsbury 2J57

26/06/82

9 / 320 / 340

 

1266

25

21

25133 / 25224

1007 - Euston 1A46

03/07/82

9 / 297 / 320

1658

1737

35.4

32.1

25033 / 25067

1605 Shrewsbury 2J57

03/07/82

11 / 392 / 417

1684

1753

32

26

25167 / 25224[1]

1640 Derby 1T06

28/07/82

10 / 361 / 386

 

1152

20

18

25097 / 25185

1605 Shrewsbury 2J57

14/08/82

10 / 367 / 392

 

1132

19

17

25206 / 25209

1605 Shrewsbury 2J57

25/08/82

10 / 367 / 392

 

1689

31

26

25298 / 25322

1605 Shrewsbury 2J57

04/09/82

9 / 322 / 342

 

1752

36

31

25298 / 25322

1815 Euston 1A51

05/09/82

12 / 433 / 440

1930

1986

28.7

26.5

25182

1605 Shrewsbury 2J57

18/09/82

4 / 142 / 156

 

865

38

32

25310 / 25311

1007 Euston 1A46

18/09/82

9 / 325 / 345

1740

1811

33.2

29.8

40106

1725 Crewe 1L02

04/12/82

9 / 322 / 347

 

1514

34

28

25057 / 25083

1740 Manchester 1T06

02/04/83

10 / 352 / 377

 

1729

33

28

25237 / 25243

1740 Euston 1T14

30/04/83

13 / 473 / 520

1766

1812

24.7

22.4

25243[2]

1740 Lichfield 1T12

02/05/83

12 / 484 / 514

 

786

12

10

25078 / 25242

1400 Shrewsbury 2J72

28/05/83

12 / 410 /430

 

1551

26

21

25124 / 25133

1715 Shrewsbury 2J57

28/05/83

10 / 368 / 380

1688

1750

31.0

27.5

25289 / 25316

1010 Euston 1A46

04/06/83

9 / 330 / 360

1643

1705

31.0

27.5

25194 / 25305

1715 Shrewsbury 2J57

04/06/83

10 / 361 / 386

 

1736

32

28

25211

1010 Euston 1A46

02/07/83

9 / 333 / 360

874

888

17.8

16.4

25289 / 25327

1400 Shrewsbury 2J72

02/07/83

11 / 410 / 420

1592

1641

26.2

23.3

25297 / 25327

1045 Mach' Euston 1A46

09/07/83

9 / 330 / 360

1559

1617

29.2

25.8

25277 / 25322

1400 Shrewsbury 2J72

09/07/83

11 / 410 / 420

1672

1721

27.6

22.2

25298 / 25320

1045 Mach' Euston 1A46

16/07/83

9 / 330 / 360

1560

1620

30.1

28.9

25277 / 25285

1715 Shrewsbury 2J57

16/07/83

10 / 360 / 380

 

1713

31

28

25320 / 25324

1010 Euston 1A46

23/07/83

9 / 306 / 336

1468

1524

29.0

26.0

25228 / 25239

1715 Shrewsbury 2J57

23/07/83

10 / 360 / 380

 

1407

26

22

25083 / 25199

1756 Derby 1T07

28/07/83

10 / 359 / 379

 

1486

26

25

25229[3]

1715 Shrewsbury 2J57

30/07/83

10 / 432 / 452

 

735[4]

13

7.0

25032 / 25083[5]

1715 Shrewsbury 2J57

06/08/83

10 / 360 / 380

 

1476

27

23

25288 / 25298

1010 Euston 1A46

06/08/83

9 / 333 / 365

1736

 

33

 

25076 / 25083

1715 Shrewsbury 2J57

13/08/83

10 / 370 / 390

1620

1686

31

26

25181[6]

1010 Euston 1A46

13/08/83

9 / 408 / 440

895

935

17

14

25175 / 25221

1010 Euston 1A46

20/08/83

9 / 333 / 350

1598

1594

31

28

25229 / 25234

1715 Shrewsbury 2J57

20/08/83

10 / 370 / 400

1351

1402

24

20

25250 / 25287

1010 Euston 1A46

27/08/83

9 / 333 / 350

1477

1544

31

26

40135

1715 Shrewsbury 2J57

27/08/83

10 / 359 / 380

1344

1410

26

23

25200 / 25212[7]

1715 Shrewsbury 2J57

03/09/83

10 / 370 / 385

908

1136

25

14

25083 / 25245

1740 - Manchester

21/04/84

9 / 333 / 360

 

1687

33

28

25276 / 25283

1830 Euston 1T07

06/05/84

13 / 465 / 505

 

1715

24

23

25154 / 25209

1705 - Swindon

07/05/84

9 / 333 / 360

1408

1610[8]

 

26

25265 / 25283

1755 Stratford on Avon 1T08

07/05/84

7 / 256 / 280

 

1664[9]

 

 

25037 / 25315

1010 Euston 1A46

26/05/84

9 / 333 / 351

 

1108

21

19

25202 / 25245

1705 Shrewsbury 2J87

26/05/84

12 / 407 / 415

 

1676

29

26

25265 / 25315

1010 Euston 1A46

02/06/84

9 / 333 / 366

1712

1758

34

31

25042 / 25207

1705 Shrewsbury 2J87

02/06/84

12 / 407 / 412

 

1752

30

27

25076 / 25189

1400 Shrewsbury 2J84

02/06/84

11 / 397 / 411

 

1776

32

28

25265 / 25321

1400 Shrewsbury 2J84

09/06/84

10 / 359 / 375

1592

1582

30

26

25288 / 25315

1010 Euston 1A46

09/06/84

8 / 296 / 325

1457

1494

30

26

25249 / 25303

1010 Euston 1A46

16/06/84

9 / 333 / 358

1786

1769

31

30

25076 / 25205

1400 Shrewsbury 2J84

16/06/84

11 / 397 / 417

1642

1654

29

25

25249 / 25284

1010 Euston 1A46

23/06/84

9 / 333 / 360

1380

 

28

23

25173 / 25237

1400 Shrewsbury 2J84

23/06/84

11 / 397 / 417

1176

 

20

16

25268 / 25287

1400 Shrewsbury 2J84

30/06/84

11 / 402 / 420

1672

 

29

26

25057 / 25237

1010 Euston 1A46

30/06/84

9 / 333 / 360

1580

 

30

27

25298 / 25311

1010 Euston 1A46

07/07/84

9 / 333 / 367

1622

 

31

28

25042 / 25224

1400 Shrewsbury 2J84

07/07/84

10 / 362 / 386

1156

 

20

19

25279 / 25287

1010 Euston 1A46

14/07/84

10 / 370 / 405

1700

 

31

27

25109 / 25199

1400 Shrewsbury 2J84

14/07/84

10 / 362 / 372

1562

 

30

26

25279 / 25313

1010 Euston 1A46

21/07/84

8 / 296 / 320

1482

 

30

28

25282 / 25324

1705 Shrewsbury 2J87

21/07/84

11 / 405 /410

1727

 

30

27

25251 / 25282

1755 - Derby

26/07/84

8 / 288 / 310

1670

 

34

31

25178 / 25198

1705 Shrewsbury 2J87

28/07/84

10 / 364 / 372

1599

 

31

27

25282

1010 Euston 1A46

28/07/84

8 / 296 / 325

869

 

20

19

25268 / 25279

1010 Euston 1A46

04/08/84

9 / 333 /366

1630

 

31

28

25205 / 25218

1705 Shrewsbury 2J87

11/08/84

11 / 395 / 405

1641

 

29

25

25254[10]

1010 Euston 1A46

11/08/84

9 / 404 / 441

855

 

15

14

25095 / 25154

1400 Shrewsbury 2J84

11/08/84

11 / 395 / 410

1337

 

24

24

25265 / 25287[11]

1010 Euston 1A46

18/08/84

9 / 333 / 374

1775

 

34

30

25044 / 25175

1400 Shrewsbury 2J84

18/08/84

11 / 395 / 410

957

 

16

15

25268 / 25288[11]

1010 Euston 1A46

25/08/84

9 / 333 / 367

1645

 

29

27

25037 / 25230

1400 Shrewsbury 2J84

25/08/84

10 / 356 / 372

1709

 

32

28

25276 / 25298

1705 Shrewsbury 2J87

25/08/84

11 / 405 / 420

1752

 

30

27

25193 / 25282[11]

1010 Euston 1A46

01/09/84

9 / 333 / 375

1765

 

34

30

25285 / 25286

1705 Shrewsbury 2J87

01/09/84

11 / 398 / 410

1807

 

31

28

25269 / 25288

1400 Shrewsbury 2J84

08/09/84

11 / 395 / 408

1664

 

29

26

25278 / 25287

1010 Euston 1A46

08/09/84

8 / 296 / 326

1560

 

31

29

25259 / 25297

1010 Euston 1A46

15/09/84

9 / 329 / 361

1666

 

32

29

25034 / 25058

1400 Shrewsbury 2J84

15/09/84

11 / 395 / 405

1637

 

29

26


[1] Leading engine, 25167, had inoperative weak fields

[2] Train loadings include weight of dead 25230.  From a standing start at Llanbrynmair crossing, MP 64.75

[3] Train loadings include weight of dead 25181. Bad wheel slip between MP 62 and 62 .

[4] RAILHP 946 @ 16mph at MP 63.5, 435 @ 7mph at MP 61.75

[5] Locos driven in tandem

[6] Train loadings include weight of dead 25229

[7] Bad wheel slip caused power to be shut off at MP63 for mile: 1760 at 63.75, 830 at 61.75

[8] Train eased off between MP62 and MP61 so log incomplete

[9] Train eased off between MP62 and MP 62 so log incomplete

[10] Train loadings include weight of dead 25282 (Train significantly overcrowded)

[11] Train significantly overloaded

 

From data collected by Nick Lawford, Alan Baylis and other members of the Rat Roadshow
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