The information contained in this page features two distinct subject matters:

1/ New locomotives delivered from Derby Locomotive Works would undergo a variety of tests before being placed into traffic. One of the last tests they would undergo would be a lengthy shakedown run with a rake of coaching stock, frequently making a roundtrip from Derby to the Corby area.

2/ Overhauled locomotives would also go out on shakedown run(s) before being placed back into traffic. These runs would usually add the test locomotive to a scheduled service (Derby - Leicester or Nottingham - Leicester).

The information for the years 1963 - 1964 (new deliveries) comes from the observations of Brian Webb.
The information for the years 1972 - 1980 (overhauled locomotive test runs) comes from Bill Spiby.

Other information has been found in many printed and online sources.

This is not a comprehensive list of outshopped locomotives from 1972 onwards, there were other Derby Locomotive Works employees involved in the test runs.

1962
04/03/62 1T48 D157 noted parked on London Road curve, Derby, very ex-works with 1T48 headcode
24/03/62 1C88 D160 very ex-works outside Test House

1963
08/01/63 1T48 D191
10/01/63 1T48 D192/D193
01/02/63 1T48 D8517/D8518
15/02/63 1T48 D5186
12/03/63 1T48 D5186
15/03/63 1T48 D5187
18/03/63 1T48 D5188
20/03/63 1T48 D5189
19/04/63 1T48 D8530
02/05/63 1T48 D5196
03/05/63 1T48 D5197
07/05/63 1T48 D5196
08/05/63 1T48 D5198
10/05/63 1T48 D5199
16/05/63 1T48 D5200
19/05/63 1T48 D5201 & D5202 alongside Derby Test house showing headcode 1T48.
21/05/63 1T48 D5202
06/06/63 1T48 D5204/D5205
11/06/63 1T48 D8536
13/06/63 1T48 D5206/D5207
18/06/63 1T48 D5208/D5209
26/06/63 1T48 D8522
05/07/63 1T48 D8523/D8524
09/07/63 1T48 D5215/D5216
25/07/63 1T48 D8533
30/07/63 1T48 D5217/D5218
21/08/63 1T48 D8527/D8536
22/08/63 1T48 D5220
27/08/63 1T48 D5220/D5221
30/08/63 1T48 D8543/D8544
04/09/63 1T48 D5222
19/09/63 1T48 D7568
25/09/63 1T48 D7569
26/09/63 1T48 D8550/D8551
27/09/63 1T48 D7570
01/10/63 1T48 D8552/D8553
07/10/63 1T48 D7571
11/10/63 1T48 D7572
18/10/63 1T48 D7573/D7574
25/10/63 1T48 D8558/D8559
30/10/63 1T48 D8560
05/11/63 1T48 D7575/D7576
03/12/63 1T48 D1694/D1695
04/12/63 1T48 D5234/D5235
05/12/63 1T48 D1696
06/12/63 1T48 D5233
10/12/63 1T48 D5236/D5238
12/12/63 1T48 D5237/D5239
12/12/63 1T48 D1697
16/12/63 1T48 D8565/D8566
18/12/63 1T48 D5241/D5242
31/12/63 1T48 D1698/D1700

1964
03/01/64 1T48 D5243
11/01/64 DEL D1701/D1707 [ Derby – Old Oak at Kettering ]
16/01/64 1T48 D8567/D8568
17/01/64 1T48 D8573
20/01/64 1T48 D5245
22/01/64 1T48 D1709/D1710
28/01/64 1T48 D8573
29/01/64 1T48 D5247
03/02/64 1T48 D5248
04/02/64 1T48 D1715
06/02/64 1T48 D5249
17/02/64 1T48 D5251
19/02/64 1T48 D5252
25/02/64 1T48 D1717
28/02/64 1T48 D8578/D8580
04/03/64 1T48 D5255
11/03/64 1T48 D5256
12/03/64 1T48 D1723/D1724
13/03/64 1T48 D5257/D5259
17/03/64 1T48 D5260
19/03/64 1T48 D5258/D5261
20/03/64 1T48 D1725/D1726
02/04/64 1T48 D1727
08/04/64 1T48 D5262
10/04/64 1T48 D5263
15/04/64 1T48 D5264
16/04/64 1T48 D8584
17/04/64 1T48 D1730/D1736
20/04/64 1T48 D5265
27/04/64 1T48 D5266/D5267
04/05/64 1T48 D5269/D5270
05/05/64 1T48 D5268
11/05/64 1T48 D1738 loco in pink undercoat, yellow warning panel & red buffer beam.
20/05/64 3P25 XP64 stock
21/05/64 1T48 D5273
23/05/64 DEL D1734/D1735 [ Derby – Old Oak via Kettering ]
25/05/64 1T48 D1741
26/05/64 1T48 D1742
29/05/64 1T48 D5274
01/06/64 1T48 D5275
02/06/64 1T48 D1739
05/06/64 1T48 D1743
08/06/64 1T48 D5279
09/06/64 1T48 D5276
10/06/64 1T48 D5278/D5280
15/06/64 1T48 D5281
16/06/64 1T48 D1745
17/06/64 1T48 D1744
18/06/64 1T48 D5282
30/06/64 1T48 D1746

1965
21/07/65 1T64 D7624 & D7625 northbound at Duffield with maroon coach set.

1966
27/03/66 5136 & 5133 ex-works in Derby yard with D5136 displaying headcode 1T37.

1967
30/01/67 0T39 D7671 noted passing Derby station in ex-works condition.
04/03/67 1T38 D5283 alongside Derby shed in ex-works condition.

1968
17/03/68 5146 in Derby Works yard ex-works with headcode 1C37.

1971
26/11/71 167 on test leading 58 noted arriving at Leicester from Derby (1M51).

1972
23/02/72 5140 no details
26/04/72 121 no details (time 9.43)
26/04/72 7543 no details (time 1.50)
27/04/72 48 no details (time 1.50)
27/04/72 123 no details (time 9.43)
29/04/72 48 no details (time 9.43) 2nd test run.
01/05/72 7522 no details (time 9.43)
01/05/72 5075 no details (light engine)
02/05/72 139 no details (time 11.50)
04/05/72 7651 no details (time 11.50)
05/05/72 31 no details (time 13.50)
11/05/72 5227 no details (time 9.43)
17/05/72 63 no details (time 9.43)
24/05/72 5255 no details (time 9.43)
31/05/72 2 no details (time 9.43)
05/06/72 7514 no details (time 1.50)
07/06/72 68 no details time 9.43)
08/06/72 5268 no details (time 1.50)
09/06/72 163 no details
09/06/72 68 no details (2nd test run)
20/06/72 69 no details (time 13.50)
20/06/72 7612 no details (time 9.43)
21/06/72 30 no details (time 9.43)
22/06/72 69 no details (time 13.50 - 2nd test run)
22/06/72 8186 no details (Nottingham)
27/06/72 69 no details (time 9.43 - 3rd test run)
27/06/72 7575 no details
28/06/72 49 no details (time 11.50)
28/06/72 51 no details (date uncertain in June)
29/06/72 30 no details (2nd test run)
30/06/72 7536 no details (time 9.43)
03/07/72 171 no details (time 11.50)
06/07/72 97 no details (time 9.43)
06/07/72 170 no details (time 1.50)
07/07/72 7673 on 1M51 with 74
12/07/72 30 no details (time 11.47 - 3rd test run)
14/07/72 158 no details (time 9.43)
18/07/72 8188 no details (Nottingham)
02/08/72 68 no details (time 9.43 - rectification?)
04/08/72 54 no details (time 9.43)
04/08/72 7524 no details (time 1.50)
14/08/72 161 no details (time 1.50)
18/08/72 150 no details (time 1.50)
22/08/72 7608 no details (time 9.43)
23/08/72 76 no details (time 1.50)
24/08/72 177 no details (time 1.50)
04/09/72 7538 no details (time 9.45)
06/09/72 127 no details
08/09/72 7538 no details (time 1.50)
08/09/72 8166 no details (Nottingham, away 10.16)
11/09/72 7513 no details (time 9.45)
13/09/72 144 no details (time 1.50)
14/09/72 5257 no details (time 9.45)
24/09/72 178 no details (time 1.50)
29/09/72 64 no details (time 1.50)
02/10/72 5258 no details (time 1.50)
04/10/72 8180 no details (Nottingham Gods Yard, away 11.18)
05/10/72 153 no details (time 1.50)
06/10/72 7502 no details (time 9.45)
06/10/72 83 no details (time 9.43 - year uncertain written as 1971)
07/10/72 19 no details (time 9.45)
21/10/72 147 no details (time 9.45)
xx/10/72 88 no details (date uncertain in October)
30/10/72 177 no details
31/10/72 8134 no details (Nottingham)
01/11/72 144 no details
xx/11/72 131 no details (date uncertain in November)
02/11/72 7520 no details
03/11/72 192 no details
04/11/72 7528 no details
06/11/72 91 no details
08/11/72 8160 no details (10.07 Nottingham)
??/11/72 8194 no details
09/11/72 91 no details (time 9.45 - 2nd test run)
10/11/72 39 no details (time 9.45)
11/11/72 7552 no details
13/11/72 39 no details (time 9.45 - 2nd test run)
14/11/72 7512 no details
17/11/72 42 no details (time 9.45)
21/11/72 8143 no details
27/11/72 5256 no details (time 9.45)
28/11/72 5275 no details (morning)
28/11/72 5256 no details (time 13.50)
30/11/72 5244 no details (time 9.45)
01/12/72 7544 no details (time 13.50)
01/12/72 8168 no details (Nottingham)
08/12/72 125 no details (time 9.45)
09/12/72 7540 no details (time 9.45)
11/12/72 5275 no details (time 9.45)
11/12/72 7551 no details
12/12/72 165 no details (time 11.50)
13/12/72 125 no details (time 9.45 - 2nd test run)
14/12/72 5246 on test 13.50 Derby - St Pancras assisting 5291 to Leicester
15/12/72 7636 on test 13.50 Derby - St Pancras assisting 134 to Leicester.
15/12/72 5246 no details (Derby)
16/12/72 10 no details
19/12/72 5292 on test 08.01 Manchester Piccadilly - St. Pancras assisting 130 to Leicester.
19/12/72 180 no details (time 9.45)
19/12/72 45 no details (time 13.50)
20/12/72 5254 no details (time 13.50)
20/12/72 58 no details (time 9.45)
21/12/72 8161 no details (Nottingham)

1973
05/01/73 7577 no details (time 11.50)
06/01/73 7557 no details (time 9.45)
09/01/73 8139 no details (Nottingham)
18/01/73 53 no details (time 13.50 - No.2 traction motor flashover at Sileby 74mph)
18/01/73 5146 no details (from Nottingham)
19/01/73 53 no details (time ?? - No.2 traction motor flashover on 5th stage)
20/01/73 149 no details (time 9.45)
20/01/73 7532 no details (time 11.50)
22/01/73 53 no details (time 1.50 - load 14, did 53 work to London?)
24/01/73 5276 no details
25/01/73 45 no details (time 1.50 - No.2 traction motor flashover at Draycott 80mph)
25/01/73 8193 no details
27/01/73 5279 no details
29/01/73 70 no details (time 1.50)
01/02/73 7541 no details (time 9.45)
03/02/73 70 no details (time 9.45 - 2nd test run)
08/02/73 164 no details (2nd test run)
09/02/73 45011 no details (time 9.45 - 2nd test run)
09/02/73 8314 no details
09/02/73 164 no details (3rd test run)
13/02/73 7530 no details (time 9.45)
13/02/73 21 no details (time 1.50)
20/02/73 136 no details (time 9.45 - load 307 tons + Class 47 - test loco performance described as low)
21/02/73 7508 no details (time 1.45) (snag sheet says 1972)
21/02/73 71 no details (time 9.45)
??/02/73 70 no details
22/02/73 136 no details (time 1.45 - 2nd test run)
23/02/73 7527 no details (time 1.50)
24/02/73 7503 no details (time 11.50)
24/02/73 71 no details (time ?? - 2nd test run)
26/02/73 7508 no details (time 9.45; third test run)
26/02/73 5293 no details (time ??)
27/02/73 71 no details (time ?? - 3rd test run)
01/03/73 21 no details (time 1.50 - 2nd run)
02/03/73 186 no details (time 9.45)
03/03/73 42 no details (time 9.45)
06/03/73 7526 no details (time 1.50)
06/03/73 8315 no details (Nottingham)
12/03/73 5289 no details
13/03/73 98 no details (time 1.50)
14/03/73 7559 no details (time 9.45)
19/03/73 129 no details (time 1.50)
23/03/73 5281 no details (time 9.45)
28/03/73 5022 no details (from Nottingham time 10.4?)
28/03/73 7 no details (time 1.50)
29/03/73 7503 no details (time 9.45)
29/03/73 5158 no details (time 11.45)
03/04/73 140 no details (time 11.50)
04/04/73 7514 no details
05/04/73 5134 no details (from Nottingham)
05/04/73 7592 no details (time 1.50)
10/04/73 7543 no details (time 9.45)
13/04/73 45102 no details (time 9.45)
13/04/73 45103 no details (time 11.50)
17/04/73 7542 no details
18/04/73 5049 no details (from Nottingham)
19/04/73 8136 no details (Nottingham)
25/04/73 45104 no details (time 11.50)
04/05/73 45001 no details (time 9.45)
09/05/73 45105 no details (time 13.45)
09/05/73 8308 no details (10.07 Nottingham)
10/05/73 160 no details (from Derby)
17/05/73 5160 on test assisting 91 on the 1C59 13.45 Derby - St Pancras.
26/05/73 5259 no details (time 9.40)
30/05/73 5085 no details (from Nottingham)
31/05/73 348 no details (13.45 Derby)
01/06/73 7574 no details (time 13.45)
05/06/73 7539 no details
05/06/73 8194 no details (Nottingham)
20/06/73 5286 no details (time 1.45)
03/07/73 150 no details (time 1.40 - engine shutting down)
03/07/73 45003 no details (time 9.40)
04/07/73 150 no details (time 1.45 - 2nd test run - engine shut down)
05/07/73 150 no details (time 1.45 - 3rd test run)
06/07/73 45109 no details (time 9.40)
10/07/73 5291 no details (time 9.40)
15/08/73 7562 no details (time 9.40)
18/08/73 45111 no details (time 9.40)
21/08/73 7597 no details (time 11.45)
24/08/73 176 no details (time 9.40)
27/08/73 7518 no details (time 11.45)
30/08/73 8074 no details (Nottingham)
31/08/73 7558 no details (time 1.45)
04/09/73 46045 no details (time 9.40 - engine shutting down, low on power)
06/09/73 182 no details (time 9.40)
06/09/73 20032 no details (Nottingham)
11/09/73 7519 no details (time 13.45)
12/09/73 7632 no details
14/09/73 45114 no details (time 13.45)
14/09/73 20185 no details (Nottingham)
02/10/73 7638 no details (time 9.45)
02/10/73 44006 no details (time 1.45)
10/10/73 45113 no details (time 1.45)
11/10/73 25133 no details (time 9.45)
??/10/73 45105 no details
23/10/73 20198 no details (Nottingham)
26/10/73 7594 no details
30/10/73 45006 no details
31/10/73 5181 no details
02/11/73 45006 no details
06/11/73 45005 no details
14/11/73 46056 no details
14/11/73 7563 no details
15/11/73 44005 no details
21/11/73 45008 no details
22/11/73 46036 no details
24/11/73 7587 no details (from Derby)
28/11/73 5349 no details (last 27 on test from Derby??)
29/11/73 40093 no details (time 13.45)
30/11/73 45007 no details (time 13.45)
01/12/73 7650 no details (time 9.45, did test actually take place?)
05/12/73 7616 no details
06/12/73 45117 no details (time 9.45)
08/12/73 45117 no details
17/12/73 7647 no details (time 9.45)
18/12/73 45010 no details (time 9.45, away at 10.07 - engine shutting down - No.2 traction motor flashover at Draycott)
19/12/73 25210 no details (time 9.45)
20/12/73 45010 no details (time 9.45 - 2nd test run, day noted as wet - engine shutting down)
20/12/73 45009 no details (time 11.45, away at 12.10)
21/12/73 45118 no details (time 9.45)
22/12/73 46014 no details (time 9.45, away at 9.55)

1974
16/01/74 46044 no details
17/01/74 25034 no details
04/02/74 45119 no details (time 1.40 Derby)
04/02/74 46009 no details
05/02/74 46009 no details (time 1.45 - 2nd test run - load 9 coaches, 308 tons + a Class 45)
05/02/74 24037 no details (time 10.08 from Nottingham)
08/02/74 25030 no details (time 9.40)
12/02/74 45120 no details (time 11.45)
13/02/74 24038 no details
15/02/74 25207 no details (time 11.45)
22/02/74 25196 no details
26/02/74 24049 no details
27/02/74 46032 no details (time 11.45)
01/03/74 45121 no details (time 11.45)
01/03/74 45012 no details (time 9.40 - No.3 traction motor flashover approaching Loughborough at about 64mph)
02/03/74 25287 no details (time 9.40)
04/03/74 46033 no details (time 9.40)
04/03/74 45012 no details (time 1.45)
06/03/74 25154 no details (time 11.45)
08/03/74 25111 no details (time 1.45)
08/03/74 45013 no details (time 9.40)
18/03/74 25198 no details (time 11.45)
22/03/74 45014 no details (time 9.40)
22/03/74 45122 no details (time 1.45)
23/03/74 45014 no details (time 9.45)
25/03/74 46019 no details (time 11.45)
26/03/74 45015 no details (time 9.40 Derby)
26/03/74 25201 no details (time 11.45)
27/03/74 45014 no details (time 9.45 - 3rd test run)
27/03/74 46037 no details (time 1.45 Derby
28/03/74 45015 no details (time 9.40)
28/03/74 46019 no details (time 1.45)
29/03/74 46034 no details (time 11.45 - locomotive down on power)
29/03/74 25298 no details (time 9.45)
30/03/74 46037 no details (time 9.45)
02/04/74 46019 no details (light engine test run to Burton)
15/06/74 45130 no details (time 9.45 1M21)
07/08/74 45019 on test assisting ?? on the 1C49 at Derby, locomotive in patched livery.
31/08/74 25060 at Works Open Day ex-works displaying headcode 0T36 (presumably tested recently?)
02/09/74 25026 at Derby station partially repainted, assumed to work its running-in turn to Leicester.
01/11/74 25278 on test assisting 68 on the 1C59 13.45 Derby - St Pancras (assumed).
19/11/74 45142 no details (time 1.45 Derby - traction motor flashover 88mph, Syston area?)
20/11/74 45143 no details (time 1.45 Derby)
06/12/74 45145 no details (time 9.45 Derby)
10/12/74 45145 no details (time 9.41 Derby - 2nd test run)
12/12/74 46007 no details (time 11.45 Derby)
17/12/74 46018 no details
17/12/74 25057 no details (time 9.41)
17/12/74 45146 on test assisting 45111 on the 13.45 Derby - St Pancras to Leicester.

1975
22/01/75 45052 no details (time 9.45 1M51)
23/01/75 25259 no details (time 1.45)
10/02/75 45032 no details (time 9.41 - load 8: 275 tons)
10/02/75 46010 no details (time 1.45 - turbo banging and shut down)
13/02/75 25274 no details (time 9.45 1M51 Derby)
15/02/75 45149 no details (time 1.45 - No.1 traction motor flashover at Draycott 70+mph)
21/02/75 46020 no details
21/02/75 25050 no details (time 9.41)
28/02/75 24063 no details
28/02/75 45044 no details (time 9.41 Derby)
28/02/75 45049 no details (time 1.45 Derby)
08/03/75 46050 no details
11/03/75 45038 no details (time 9.41)
13/03/75 45047 no details (time 1.45 1C59)
13/03/75 25092 no details (time 9.41)
14/03/75 45038 no details (time 1.45 - 2nd test run)
18/03/75 24134 no details (3C48 from Nottingham)
18/03/75 45064 no details (time 1.45 1C59)
19/03/75 45047 no details (time 9.41 1M51)
21/03/75 46053 no details (1M51 Derby)
21/03/75 45038 no details
23/03/75 45038 no details (from Derby load 9, 2nd test run)
24/03/75 45038 no details (from Derby 1C59 load 9, 3rd test run)
26/03/75 25090 no details (time 9.41)
27/03/75 25090 no details
27/03/75 45101 no details (time 1.45)
11/04/75 24044 no details (Nottingham 3C48)
16/04/75 24057 no details (Nottingham 3C48 10.07?)
17/04/75 45024 no details (time 1.45 1C49, No.3 traction motor flashover approaching Long Eaton at 75mph)
18/04/75 45039 no details (time 9.41 1M51)
22/04/75 45037 no details (time 1.45 1C49, No.2 traction motor flashover near Syston)
23/04/75 46007 no details (1M51, load 9)
25/04/75 45034 no details (Derby)
26/04/75 45070 no details (1M51, No.5 traction motor flashover south of Loughborough 86mph)
29/04/75 45030 no details (time 11.45 1M59, No.1 traction motor flashover at 48mph Spondon area)
29/04/75 24040 no details (3C48 Nottingham)
01/05/75 25159 no details (1M51 Derby)
02/05/75 45132 no details (1M51)
06/05/75 45054 no details (time 11.45 1C49)
07/05/75 25040 no details (1M51 Derby)
14/05/75 25085 no details (1M51 Derby 9.45)
15/05/75 46005 no details (1C49 Derby - load 8 coaches)
16/05/75 45069 no details (1M59 Derby)
16/05/75 25008 no details (from Derby)
19/05/75 46005 no details (time 1.45 1M59 Derby - 2nd test run)
20/05/75 45053 no details (1M51)
20/05/75 46005 no details (time 1.45 - 3rd test run - load 9 coaches)
22/05/75 46040 no details (time 15.45 1C76 Derby)
23/05/75 25252 no details (1M51 9.41 Derby)
30/05/75 24133 no details (3C48 Nottingham)
30/05/75 45065 no details (time 1.45 1M59 Derby - No.1 traction motor flashover at Borrowash)
03/06/75 25275 no details (time 9.41 1M51)
04/06/75 46034 no details (time 11.45 1C49 Derby)
10/06/75 44002 no details (1C49 Derby - assisting 45139?)
25/06/75 24091 no details (3C48 Nottingham)
26/06/75 45061 no details (time 1.45 1C49)
27/06/75 45028 no details (time 1.45 1C59 Derby)
27/06/75 46025 no details (1M51 Derby)
03/07/75 25099 no details (1M51 Derby 9.41)
03/07/75 45028 no details (1C49)
04/07/75 25252 no details (time 9.41 1M51 piloting 45103)
05/07/75 45150 no details (time 9.41 1M51 Derby - load 9 coaches)
08/07/75 45031 no details (time 9.41, away 10.35; 1M51 Derby)
10/07/75 25220 no details (1M51 Derby 9.41)
04/08/75 25253 no details (1M49 with 45135)
01/10/75 45027 no details (time 9.41 1M51)
03/10/75 25155 no details (1C59 11.45)
04/10/75 25065 no details (1C41 10.50 Nottingham?)
07/10/75 25065 on test (?? 1C41 Derby - London service to Leicester) noted returning light engine in Derby area.
10/10/75 45058 no details (1C41 Nottingham)
14/10/75 45035 no details (1C41 Nottingham)
15/10/75 25122 no details (1P18 14.36 Leicester - Derby)
17/10/75 46033 no details (1C64 Nottingham)
17/10/75 20029 no details (3C48 Nottingham)
22/10/75 45149 no details (16.36 1P18 Leicester - Derby)
22/10/75 25055 no details (1C41 Nottingham)
30/10/75 45060 no details (time 13.50 1C64 Nottingham)
01/11/75 45046 no details (1C41 Nottingham)
07/11/75 45034 no details (time 14.50 1C64 Nottingham)
13/11/75 25066 no details (1C47 10.50 Nottingham)
15/11/75 46043 no details (time 10.50 1C47)
19/11/75 25074 no details (1C47 10.50 Nottingham)
22/11/75 25121 no details (1C41 10.50 Nottingham)
26/11/75 45040 no details (1C64)
27/11/75 46024 no details (1C41)
28/11/75 25052 no details (1C41 Nottingham)
29/11/75 45051 on test assisting 45113 on 1C41 10.50 Nottingham - St Pancras to Leicester.
02/12/75 45051 no details (1C41 - 2nd test run - No.6 traction motor flashover 86mph)
04/12/75 45051 no details (1C41) - 3rd test run)
05/12/75 45110 no details (1C41)
09/12/75 45110 no details (1C41)
10/12/75 46031 no details (1C41)
11/12/75 46026 no details (1C41)
12/12/75 25127 no details (1C41)
16/12/75 20003 no details (3C48)
17/12/75 45025 no details (1C41 Nottingham)

1976
03/01/76 45071 no details (1C41)
07/01/76 45071 no details (1C41 Nottingham - 2nd test run)
13/01/76 25317 no details (1C41 10.50 Nottingham, possibly 45139 was the train engine)
16/01/76 45106 no details (1C41)
17/01/76 45106 no details (1C41 10.50 Nottingham - 2nd test run)
20/01/76 25116 no details (1C41 Nottingham)
22/01/76 45036 no details (1C41 10.50 Nottingham)
23/01/76 25075 no details (from Nottingham)
28/01/76 46027 no details (1C41 10.50 Nottingham)
05/02/76 25219 no details (1C41 Nottingham)
05/02/76 45033 no details (1C64 Nottingham)
12/02/76 45064 no details (1C41 Nottingham)
13/02/76 46021 no details (1C41 Nottingham)
24/02/76 25249 no details (1C41 Nottingham)
25/02/76 45026 no details (1C41 Nottingham)
27/02/76 45073 no details (1C64 Nottingham)
28/02/76 46049 no details (1C49 Nottingham)
03/03/76 20228 no details (3C48 Nottingham)
04/03/76 25039 no details (1C41 Nottingham)
05/03/76 25039 no details (3C48 Nottingham)
06/03/76 25039 no details (1C41 Nottingham)
11/03/76 45001 no details (1C41)
12/03/76 25257 no details (1C64)
23/03/76 25056 no details (1C41 Nottingham)
25/03/76 25270 no details (1C41 Nottingham)
26/03/76 25071 no details (1C41 Nottingham)
02/04/76 25263 no details (1C41 Nottingham)
03/04/76 45043 no details (1C41 Nottingham)
07/04/76 45042 no details (1C64 Nottingham)
10/04/76 45101 no details (1C41)
14/04/76 25223 no details (1C41 Nottingham)
21/04/76 20129 no details (3C48 Nottingham)
23/04/76 45048 no details (1C41 Nottingham)
24/04/76 25102 no details (1C41 Nottingham)
30/04/76 45056 no details (1C41)
05/05/76 45150 no details (1C41)
05/05/76 45132 no details (1C64 14.50)
07/05/76 45105 no details (1C41)
13/05/76 45050 no details (1C64)
14/05/76 25222 no details (1C41)
21/05/76 20145 no details (3C48)
04/06/76 46003 on test assisting 45110 on approx 10.00 Nottingham - London service to Leicester.
16/06/76 45103 no details (1C41)
18/06/76 46052 no details (1C64)
28/06/76 45063 no details
03/07/76 45002 on test assisting 45133 on 1C41 Derby? - London service to Leicester.
02/07/76 25311 no details
09/07/76 25289 no details (1C41)
29/07/76 46012 no details (1C41)
30/07/76 20045 no details (3C48)
30/07/76 25070 no details (Leicester - Derby)
12/08/76 25081 no details (1C41 Derby)
13/08/76 25081 no details (1C41 Derby)
20/08/76 45108 no details (1C64 Nottingham - No.5 traction motor flashover)
20/08/76 25112 no details (1C41 Nottingham)
24/09/76 46023 no details (1C64)
30/09/76 45009 no details (1C41)
01/10/76 20144 no details (3C48)
06/10/76 25041 no details (1C41)
08/10/76 46056 no details (1C41)
14/10/76 45117 no details (1C41)
15/10/76 20087 no details
16/10/76 25225 no details (1C41)
30/10/76 45003 no details (1C41)
04/11/76 25312 no details (1C41)
04/11/76 46029 no details (1C64)
10/11/76 25287 no details (1C49 Derby)
12/11/76 45107 no details (1C41 - No.2 traction motor flashover twice)
13/11/76 25109 no details (1C41)
16/11/76 45107 no details (1C41 - 2nd test run)
18/11/76 45011 no details (1C41)
19/11/76 25088 no details (1C41)
26/11/76 25120 no details (1C64)
04/12/76 45104 no details (1C41 - No.6 traction motor flashover at 74mph)
09/12/76 45104 no details (1C41 - 2nd test run)
10/12/76 25097 no details (1C41)
18/12/76 45007 no details (1C41)

1977
28/01/77 25236 no details (1C41)
02/02/77 46051 no details (1C64)
02/02/77 25089 no details (1C41)
03/02/77 45102 no details (1C41 - No.2 traction motor flashover at 85mph)
03/02/77 20053? no details (3C48)
05/02/77 45102 no details (1C41 - 2nd test run)
09/02/77 25113 no details (1C64)
10/02/77 25315 no details (1C41)
10/02/77 45015 no details (1C64 14.50 Nottingham)
16/02/77 45013 no details (1C64 - rectification)
17/02/77 46044 no details (1C64)
17/02/77 25069 no details (1C41)
18/02/77 45004 no details (1C41)
18/02/77 46004 no details (1C64)
19/02/77 45055 no details (1C41 - did test run actually take place?)
23/02/77 25067 no details (1C41)
28/02/77 25117 no details (1C41)
03/03/77 45112 no details (1C41)
04/03/77 46004 no details (1C41)
04/03/77 25313 no details (1C64)
05/03/77 45016 no details (1C21 Derby)
08/03/77 45139 no details (1C64 - No.6 traction motor flashover 70+mph)
10/03/77 45114 no details (1C41)
11/03/77 25145 no details (1C64)
17/03/77 46014 no details (1C41)
19/03/77 46032 no details (?1M21 Derby)
23/03/77 20006 no details (3C48)
24/03/77 25184 no details (1C41)
24/03/77 45109 no details (1C64)
29/03/77?? 45014 no details
29/03/77 40109 no details (1C41 - engine low on power)
31/03/77 25183 no details (1C64)
31/03/77 45110 no details (1C41)
02/04/77 46011 no details (1C41)
06/04/77 45014 no details (1C41 - No.6 traction motor flashover at 80mph)
06/04/77 25314 no details (1C64 - train engine 45119)
14/04/77 25258 no details (1C41)
14/04/77 45126 no details (1C64 - No.4 traction motor flashover at 82mph)
15/04/77 20044 no details (3C48)
??/04/77 45037 no details
20/04/77 45115 no details (1C41 - train engine 45116)
21/04/77 25107 no details (1C41 Nottingham)
22/04/77 40112 no details (1C51)
24/04/77 46013 no details (1C51)
29/04/77 40040 no details (1C41)
30/04/77 25179 no details (1C41 Nottingham)
04/05/77 46046 no details (1P10 Leicester)
06/05/77 20071 no details (3C48, 10.33 away)
07/05/77 45077 no details (1C21 Derby)
11/05/77 40038 no details (1C21 - No.1 traction motor flashover)
12/05/77 40038 no details (1P10 - 2nd test run)
13/05/77 25322 no details (1C21 Derby)
18/05/77 25186 no details (1C21 Derby)
19/05/77 40156 no details (1C21)
19/05/77 46047 no details (1P10 Leicester)
21/05/77 45113 no details (1C21 Derby)
21/05/77 25322 (very ex-works) noted at Knighton South Junction with 45147 light engines, following test run?
25/05/77 25187 no details (1C21 Derby)
26/05/77 45118 no details (1C21 Derby)
15/06/77 45017 no details (1C21 Derby - No.3 traction motor flashover)
16/06/77 25105 no details (1C21 Derby)
17/06/77 20092 no details (3C48)
23/06/77 45121 no details (1C21 Derby)
24/06/77 25165 no details (1C21 Derby)
30/06/77 40083 no details (1C?? Derby)
01/07/77 25114 no details (1C21 Derby)
01/07/77 46009 no details (1P10 Leicester)
02/07/77 40097 no details (1C21 Derby)
05/07/77 25175 no details (1P10 Leicester - Derby)
07/07/77 20068 no details (3C48 Nottingham)
08/07/77 45122 no details (1C21 Derby - No.1 traction motor flashover at Draycott 76+mph)
13/07/77 25148 no details (1C21 Derby)
13/07/77 46034 no details (1P10 Leicester)
15/07/77 25164 no details (1C49 Derby)
16/07/77 25164 no details (1C49 Derby, with 45129?)
22/07/77 25160 no details (1C21 Derby)
22/07/77 45019 no details (1P10 Leicester)
25/07/77 25114 on test assisting 45108 10.05 Derby - St. Pancras to Leicester.
27/07/77 40154 on test with 45xxx Derby - Leicester
28/07/77 25114 on test with 45117 Derby - Leicester
03/08/77 45116 no details (1P10 Leicester - No.5 traction motor flashover 80+mph)
04/08/77 45116 no details (1P10 Leicester - 2nd test run - No.6 traction motor flashover)
04/08/77 25129 no details (1C21 Derby)
06/08/77 45116 no details (1C21 Derby - 3rd test run)
10/08/77 45116 no details (1P10 Leicester - 4th test run)
02/09/77 40175 no details (1C21 Derby)
03/09/77 25170 on test assisting 45145 on the 1C21 10.05 Derby - St. Pancras as far as Leicester.
05/09/77 46019 no details (1C21 Derby)
07/09/77 46019 no details (1C21 Derby - 2nd test run)
09/09/77 45020 no details (1C21 Derby)
12/09/77 40149 no details (1C21 Derby)
13/09/77 20031 no details (3C48 Nottingham PCD)
14/09/77 25104 no details (1C21 Derby)
22/09/77 40125 no details (1C21 Derby)
26/09/77 25307 no details (1C21 Derby)
30/09/77 46042 no details (1P10 Leicester)
01/10/77 40141 no details (1C21 Derby)
03/10/77 46041 no details (1C21 Derby)
08/10/77 45119 no details (1C21 Derby)
12/10/77 43012 no details
14/10/77 25126 no details (1C21 Derby)
19/10/77 40117 no details (1C49 Derby)
20/10/77 20043 no details (3C48 Notiingham 3F01?)
04/11/77 45021 no details (time 12.07 Derby)
05/11/77 25254 no details (time 12.07 Derby)
08/11/77 40023 no details (12.07 Derby)
19/11/77 45129 no details (1C49 12.07 Derby)
22/11/77 40120 no details (1C49 12.07 Derby)
02/12/77 45032 no details (1C49 Derby)
03/12/77 45022 no details (1C49 Derby)
05/12/77 25323 no details (1C49 Derby)
06/12/77 40122 no details (1C49)
08/12/77 25253 no details (1P10 Leicester - Derby)
08/12/77 25242 no details (from Nottingham PCD)
09/12/77 40078 no details (1C49 Derby)
14/12/77 25325 no details (1C49 Derby)
17/12/77 46015 no details (1C49 Derby)
17/12/77 40143 no details (3F01 Nottingham)
19/12/77 46015 no details (1C49 Derby - 2nd test run)
22/12/77 45005 no details (1P10 Leicester - No.3 traction motor flashover))
22/12/77 25134 no details (1F01? Nottingham)
28/12/77 45005 no details (1C49 - 2nd test run)
31/12/77 43018 + 43019 no details

1978
10/01/78 20013 no details (3F01)
11/01/78 40104 no details (1C49 Derby)
12/01/78 45024 no details (1C49 Derby - No.6 traction motor flashover)
23/01/78 25242 no details (1C49 Derby)
24/01/78 45131 no details (1C49 Derby)
27/01/78 25132 no details (1C49 Derby)
02/02/78 25326 no details (1C49 Derby)
03/02/78 45007 no details (1C49)
08/02/78 40128 no details (1C49 Derby - engine low on power)
09/02/78 45039 no details (1C49 Derby - No.3 traction motor flashover)
10/02/78 45039 no details (1C49 Derby - 2nd test run)
17/02/78 25157 no details (3F01 Nottingham)
24/02/78 45008 no details (1C49 Derby)
25/02/78 25193 no details (1C49 Derby)
01/03/78 46006 no details (1C49 Derby)
04/03/78 46054 no details (1C49)
14/03/78 25150 no details (1C49 Derby)
15/03/78 25136 on test assisting 45110 on 1C49 Derby - London service to Leicester.
17/03/78 45135 no details (1C49 Derby)
18/03/78 25185 on test assisting 45108 on the 1C49 12.07 Derby - St Pancras.
29/03/78 45028 no details (1C49 Derby - Nos.1 & 2 traction motors flashover)
30/03/78 25147 no details (1C49 Derby)
31/03/78 45028 no details (1C49)
04/04/78 45132 no details (1C49 Derby)
05/04/78 45132 no details (1C49 Derby - No.3 traction motor flashover)
07/04/78 45140 no details (1C49 Derby)
07/04/78 25180 no details (from Nottingham 3F01)
12/04/78 46034 no details (1C49 Derby)
18/04/78 25131 no details (1C48)
19/04/78 25320 no details (1C49 Derby)
21/04/78 45130 no details (1C49 Derby)
22/04/78 45053 no details (1C49 Derby - No.1 traction motor flashover approaching Leicester at 80mph)
24/04/78 25055 no details (1C49)
25/04/78 45053 no details (1C49 Derby - 2nd test run)
27/04/78 25141 no details (1C49 Derby)
28/04/78 45064 no details (1C49 Derby)
29/04/78 46050 no details (1C49 Derby
20/05/78 46040 on test?? ex-works double heading southbound service.
14/06/78 25191 no details - main generator flashover at 26mph.
15/06/78 25284 no details (1C49 Derby)
16/06/78 25191 no details (1C49 Derby)
21/06/78 25133 no details (1C49 Derby)
23/06/78 45061 no details (1C49 Derby)
24/06/78 25043 no details (3F01 Nottingham)
29/06/78 25173 no details (1C49 Derby)
30/06/78 25152 no details (3F01 Nottingham)
30/06/78 46025 no details (1C49 Derby)
14/07/78 45148 no details (1P10 Leicester)
26/07/78 25124 no details (3F01 Nottingham)
27/07/78 25036 no details (3F01 Nottingham)
28/07/78 45018 no details (1P10 Leicester - loco failed before test run could start)
31/07/78 45018 no details (1P10 Leicester - 2nd attempt - may have suffered a traction motor flashover)
02/08/78 45018 no details (1P10 Leicester - 3rd test run)
03/08/78 45146 no details (1P10 Leicester - No.1 traction motor flashover)
04/08/78 25208 no details (3F01 Nottingham)
10/08/78 25146 no details (3F01 Nottingham)
11/08/78 25208 no details (1P10 Leicester)
31/08/78 46007 no details (1C49 Derby)
01/09/78 45044 no details (Derby - No.4 traction motor flashover at 45mph)
01/09/78 25195 no details (3F01 Nottingham)
05/09/78 45123 no details (1C49 Derby - No.1 traction motor flashover at Draycott 80mph)
06/09/78 45044 no details (1C49 Derby - 2nd run)
07/09/78 45031 no details (1C49 Derby - Nos.5 & 6 traction motors flashover)
08/09/78 45044 no details (1C49 Derby - 3rd run - No.2 traction motor flashover at Draycott 73mph)
11/09/78 45031 no details (1C49 Derby - No.2 traction motor flashover at Draycott 70mph)
14/09/78 25297 no details (1C49 Derby)
18/09/78 45144 no details (1C49 Derby
28/09/78 45027 no details (1C49 Derby
29/09/78 46053 no details (1P10 Leicester)
02/10/78 45027 no details (1P10 Leicester - Nos.3 & 4 traction motors flashover)
03/10/78 25176 no details (1C49 Derby)
04/10/78 25199 no details (1F01 Nottingham)
04/10/78 45027 no details (1P10 Leicester - 3rd test run)
07/10/78 45027 no details (1C49 Derby - 4th test run)
12/10/78 45124 no details (1C49 Derby - No.2 traction motor flashover 66/70mph)
17/10/78 46018 no details (1C49)
30/10/78 45037 no details (1C49 Derby - 2nd test run - Nos.1 & 2 traction motors flashover)
01/11/78 45037 no details (1C49 Derby - 3rd test run - No.1 traction motor flashover
03/11/78 45037 no details (1C49 Derby - 5th test run)
04/11/78 25250 no details (1F01 Nottingham)
04/11/78 45035 no details (1C49 Derby)
07/11/78 45076 no details (1C49 Derby)
08/11/78 46043 no details (1C49 Derby)
09/11/78 25181 no details (1C49 Derby)
23/11/78 45134 no details (1C49 Derby - No.4? traction motor flashover at Draycott at 74mph)
25/11/78 45134 no details (1C49 Derby - No.3 traction motor flashover)
02/12/78 45034 no details (1C49 Derby - No.5 traction motor flashover at Syston 82mph)

1979
22/02/79 45025 on test assisting 45135 on the 12.07 Derby - St Pancras.
24/03/79 25032 no details
25/04/79 45002 no details (1C49 Derby)
19/05/79 25119 on test assisting 45136 on 3F01 Nottingham - St Pancras empty newspaper vans (?) to Leicester.
22/05/79 46051 no details
01/06/79 45142 no details (1C49 Derby
08/09/79 25279 no details (1F01)

1980
08/07/80 25205 on test assisting 45108 on 12.07 Derby - St Pancras to Leicester.
10/07/80 44008 on test assisting 45121 on the 12.07 Derby - St Pancras service to Leicester.
14/07/80 45016 on test assisting 45103 on a Derby - London service.
17/07/80 25265 no details - light engine to Burton.
29/12/80 45059 on test assisting 45150 on a Derby - London service.

1983
06/10/83 45044 no details (time 08.50)

1984
09/12/84 45046 no details (1F08 - failed exhauster at Kegworth, run round train at Syston & return, train unfitted:max 25mph)

1985
04/04/85 45113 no details
04/12/85 20108 no details
28/11/85 45129 no details (Derby - Nottingham - two test runs)

1986
30/01/86 45122 no details (two test runs)
23/02/86 45114 no details (Derby - Loughborough)
28/03/86 45110 no details (Derby - Loughborough?)
29/03/86 45110 no details

Test Trains
1C21 10.05 / 10.50 Derby - St Pancras to Leicester.
1C41 Nottingham - St Pancras.
1C49 12.07 / 12.10 Derby - St Pancras to Leicester.
1C51 12.50 Nottingham - St Pancras.
1C64 14.50 Nottingham - St Pancras.
1M51 08.01 Manchester Piccadilly - St Pancras.
1P10 10.30 St Pancras - Derby - testing from Leicester.
3F01 10.06 Nottingham - Wellingborough parcels to Leicester.

It is hoped to add further details of these Test Trains and of the workings of the overhauled locomotives using diagrammed passenger services.

Page added February 17th 2014.
Last updated January 27th 2024.

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