The fleet before all class 700 operation
30 four car sets of Class 127 DMUs prior to electrification
48 new class 317 ac units,
86 dual voltage class 319 ac/dc units
various 'Electrostar' dual voltage class 377 and 387s.
Since the introduction (class 313 c1976) of 'Tightlock' fully automatic couplers as fitted to class 319 units, how to move these trains when stalled has always been a problem with diesel locomotives fitted with conventional buffers and draw hook being non compatible. An emergency tightlock coupler 'knuckle' is available that can fit to certain locomotives (Not DBS 66) drawhooks once the screw coupling is removed, this allows a locomotive to couple to a 319 and with a main reservoir air pipe connection made, movement at 5mph to clear the line can be made. This is labour intensive the coupler being very heavy,takes a fair while to fit and end speed very low. Behold then, a different approach some 36 years (2012) after the Tightlock coupler introduced! Class 57 locos fitted with retractable tightlock (or Dellner) couplers and able to supply/translate brake supply for 'line speed' operation.
Previous Electric (AC only) fleet:
317 301 501 GA Greater Anglia
317 302 502 GA
317 303. 503 GA
317 304 504 GA
317 305 505 GA
317 306 506 GA
317 307 507 GA
317 308 708 GA>London Overground 1
317 309 709 GA>London Overground 2
317 310 710 GA>London Overground 3
317 311 508 GA
317 312 509 GA
317 313 510 GA
317 314 714 GA>London Overground 4
317 315 511GA
317 316 512 GA
317 317 513 GA
317 318 514 GA
317 319 719 GA>London Overground 5
317 320 520 GA
317 321 881 GA<
317 322 722 GA>Demonstrator/traction test bed
317 323 723 GA>London Overground 6
317 324 882 GA<
317 325 883 GA<
317 326 884 GA<
317 327 885 GA<
317 328 886 GA<
317 329 729 GA>London Overground 7
317 330 887 GA<London Overground 8
317 331 888 GA<London Overground 9
317 332 732 GA>London Overground 10
317 333 889 GA<London Overground 11
317 334 890 GA<London Overground 12
317 335 891 GA<London Overground 13
317 336 892 GA<London Overground 14
317 337 GA
317 338 GA
317 339 GA
317 340 GA
317 341 GA
317 342 GA
317 343 GA
317 344 GA
317 345 GA
317 346 GA
317 347 GA
317 348 GA
317 708 -732 (09) & 317 881 -892 (12)
former Stansted Express use
(as built dts 77029 with 317 330 now with 317 344
as built dts 77043 with 317 344 now with 317 887
new 77048 constructed (now with 317 501) also
as built dts 77000 (301/883/) swapped with 77024(325 /501/ to make serviceable 4 car 325.)
Introduced in 1959, Class 127 Diesel Multiple Units constructed by BR Derby
Red Triangle coupling code, 4 car sets had two x 238hp (=476hp) Rolls Royce engines but with non standard diesel hydraulic transmission.
30 sets comprised -60 Driving motor brake vehicles and 60 trailer cars (30 with toilets) -
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51591-59589-59619-51621
51592-590-620-622
51593-591-621-623
51594-592-622-624
51595-593-623-625
51596-594-624-626
51597-595-625-627
51598-596-626-628
51599-597-627-629
51600-598 628-630
51601-599-629-631
51602-600-630-632
51603-601-631-633
51604-602-632-634
51605-603-633-635
51606-604-634-636
51607-605-635-637
51608-606-636-638
51609-607-637-639
51610-608-638-640
51611-609-639-641
51612-610-640-642
51613-611-641-643
51614-612-642-644
51615-613-643-645
51616-614-644-646
51617-615-645-647
51618-616-646-648
51619-617-647-649
51620-618-648-650
317 301 - 317 348
319 001 - 319 013
319 214 - 319 220
319 421 - 319 460
319 361 - 319 386
377 501 - 377 523
377 2 xx various
387 101 - 387 129
387 2xx various