Index of Initial Equipment Fitted to Railcars (From the BUT Spare Parts Catalogue AEC Section).

BUT - AEC Equipment Fitted to Diesel Multiple Units.

Vehicle Nos. BR Lot No. BUT DTO No. Builder Number

of Cars

 Equipments

per car

 Engines
E50001-E50024 30209 1/35 Derby C&W 24 2 Ley.
E50025 30209 1/42 Derby C&W 1 2 Ley.
E50026-E50031 30209 1/35 Derby C&W 6 2 Ley.
E50032 30209 1/42 Derby C&W 1 2 Ley.
E50033-E50047 30209 1/35 Derby C&W 15 2 Ley.
E50048 30209 1/28A Derby C&W 1 2 Ley.
E50049 30459 1/28 Derby C&W 1 2 Ley.
W50050-W50091 30211 1/18A Derby C&W 42 2 Ley.
W50092-W50133 30213 1/18A Derby C&W 42 2 Ley.
M50134-M50137 30248 1/24 Met. Cam. 4 2 R. R.
E50138-E50151 30249 1/12 Met. Cam. 14 2 A52
E50152-E50157 30252 1/12 Met. Cam. 6 2 A52
E50158-E50163 30253 1/12 Met. Cam. 6 2 A52
E50164-E50167 30254 1/12 Met. Cam. 4 2 A52
E50168-E50171 30255 1/12 Met. Cam. 4 2 A52
E50172-E50197 30256 1/12 Met. Cam. 26 2 A52
E50198-E50209 30259 1/12 Met. Cam. 12 2 A52
E50210-E50233 30261 1/12 Met. Cam. 24 2 A52
E50234-E50245 30263 1/12 Met. Cam. 12 2 A52
E50246-E50248 30339 1/12 Met. Cam. 3 2 A52
E50249 30505 1/40 Cravens 1 2 A52
E50250-E50259 30266 1/12 Met. Cam. 10 2 A52
E50260-E50269 30267 1/12 Met. Cam. 10 2 A52
E50270-E50279 30268 1/12 Met. Cam. 10 2 A52
E50280-E50289 30338 1/12 Met. Cam. 10 2 A52
E50290-E50296 30270 1/12 Met. Cam. 7 2 A52
M50303-M50320 30275 1/12 Met. Cam. 18 2 A52
M50321-M50338 30276 1/12 Met. Cam. 18 2 A52
SC50339-SC50347 30278 1/16 Glos. C&W 9 2 A52
M50348-M50358 30278 1/16 Glos. C&W 11 2 A52
E50359-E50370 30280 1/14 Cravens 12 2 Ley.
E50371-E50372 30280 1/14 Cravens 2 2 A52
E50373-E50389 30282 1/14 Cravens 17 2 A52
E50390-E50394 30284 1/14 Cravens 5 2 A52
M50395-M50414 30286 1/17 Park Royal 20 2 A52
E50415-E50419 30288 1/15 Wickam 5 2 Ley.
M50420-M50423 30290 1/13 BRCW 4 2 Ley.
M50424-M50427 30291 1/13 BRCW 4 2 Ley.
M50428-M50479 30293 1/13 BRCW 52 2 Ley.
M50480-M50531 30294 1/13 BRCW 52 2 Ley.
M50532-M50541 30296 1/13 BRCW 10 2 Ley.
E50542-E50583 30298 1/13 BRCW 42 2 Ley.
E50584-E50593 30301 1/13 BRCW 10 2 Ley.
E50594-E50598 30304 1/13 BRCW 5 2 Ley.
E50599-E50624 30406 1/30 Derby C&W 26 2 Ley.
M50625-M50629 30407 1/30 Derby C&W 5 2 Ley.
E50630-E50646 30408 1/30 Derby C&W 17 2 Ley.
W50647-W50695 30334 1/22 Swindon 49 2 A52
W50696-W50744 30335 1/22 Swindon 49 2 A52
E50745-E50751 30271 1/12 Met. Cam. 7 2 A52
Vehicle Nos. BR Lot No. BUT DTO No. Builder Number

of Cars

 Equipments

per car

 Engines
M50752-M50784 30352 1/21 Cravens 33 2 A52
M50785-M50817 30353 1/21 Cravens 33 2 A52
W50818-W50858 30363 1/23 Derby C&W 41 2 Ley.
W50859-W50861 30363 1/23 Derby C&W 3 2 A52
W50862-W50870 30363 1/23 Derby C&W 9 2 Ley.
W50871-W50911 30364 1/23 Derby C&W 41 2 Ley.
W50912-W50914 30364 1/23 Derby C&W 3 2 A52
W50915-W50923 30364 1/23 Derby C&W 9 2 Ley.
M50924-M50935 30460 1/38 Derby C&W 12 2 Ley.
SC50936 30413 1/34 Swindon 1 2 A52
M50938-M50967 30465 1/38 Derby C&W 30 2 Ley.
M50968 30465 1/38 Derby C&W 1 2 Ley.
M50969-M50987 30465 1/38 Derby C&W 19 2 Ley.
SC51008-SC51029 30413 1/34 Swindon 22 2 A52
SC51030-SC51051 30414 1/34 Swindon 22 2 A52
W51052-W51079 30421 1/25 Glos. C&W 28 2 A52
W51080-W51107 30422 1/25 Glos. C&W 28 2 A52
SC51108-SC51127 30444 1/27 Glos. C&W 20 2 A52
W51128-W51140 30446 1/23 Derby C&W 13 2 Ley.
W51141-W51153 30447 1/23 Derby C&W 13 2 Ley.
M51174-M51203 30467 1/31 Met. Cam. 30 2 A52
E51204-E51223 30467 1/31 Met. Cam. 20 2 A52
SC51224-SC51253 30467 1/31 Met. Cam. 20 2 A52
E51254-E51301 30469 1/33 Cravens 48 2 A52
W51302-W51316 30543 1/41 Pressed Steel 15 2 Ley.
W51317-W51331 30545 1/41 Pressed Steel 15 2 Ley.
W51332-W51373 30546 1/41 BRCW 42 2 Ley.
W51374-W51415 30548 1/41 BRCW 42 2 Ley.
M51416-M51424 30498 1/49 Derby C&W 9 2 Ley.
E51425-E51444 30500 1/39 Met. Cam. 20 2 Ley.
SC51445-SC51470 30500 1/39 Met. Cam. 26 2 Ley.
E51471-E51472 30503 1/40 Cravens 2 2 A52
SC51473-SC51494 30503 1/40 Cravens 22 2 A52
E51495-E51514 30501 1/39 Cravens 20 2 Ley.
SC51515-SC51540 30501 1/39 Cravens 26 2 Ley.
E51541-E51550 30508 1/44 Met. Cam. 10 2 R. R.
E51551-E51560 30509 1/44 Met. Cam. 10 2 R. R.
M51561-M51572 30461 1/38 Derby C&W 12 2 Ley.
W51573-W51581 30515 1/56 Swindon 9 2 A52
W51582-W51590 30516 1/56 Swindon 9 2 A52
M51591-M51650 30521 - Derby C&W 60 2 R. R.
M51651-M51680 30530 1/50 Derby C&W 30 2 Ley.
M51681-M51705 30533 1/43 Cravens 25 1 R. R.
M51706-M51730 30534 1/43 Cravens 25 1 R. R.
M51731-M51755 30535 1/48 Cravens 25 1 R. R.
M51756-M51780 30536 1/48 Cravens 25 1 R. R.
SC51781-SC51787 30559 1/51 Swindon 7 2 A52
SC51788-SC51794 30560 1/51 Swindon 7 2 A52
Vehicle Nos. BR Lot No. BUT DTO No. Builder Number

of Cars

 Equipments

per car

 Engines
SC51795-SC51801 30587 1/39 Met. Cam. 7 2 Ley.
SC51802-SC51808 30588 1/39 Met. Cam. 7 2 Ley.
E51809-E51828 30592 1/52 BRCW 20 2 R. R.
E51829-E51848 30593 1/52 BRCW 20 2 R. R.
M51849-M51860 30595 1/50 Derby C&W 12 2 Ley.
M51861-M51900 30598 1/50 Derby C&W 40 2 Ley.
M51901-M51950 30601 1/54 Derby C&W 50 2 Ley.
E51951-E51967 30603 1/53 Swindon 17 2 Ley.
E51968-E51984 30604 1/53 Swindon 17 2 Ley.
SC51985-SC52010 30610 1/55 Derby C&W 26 2 A52
SC52011-SC52036 30612 1/55 Derby C&W 26 2 A52
M52037-M52065 30660 1/54 Derby C&W 29 2 Ley.
M52066-M52075 30691 1/64 BRCW 10 2 R. R.
M52076-M52085 30692 1/64 BRCW 10 2 R. R.
W52086-W52095 30703 - Swindon 10 2 -
W52096-W52105 30704 - Swindon 10 2 -
W55000-W55019 30419 1/25 Glos. C&W 20 2 A52
W55020-W55035 30518 1/57 Pressed Steel 16 2 A52
M55987-M55990 30552 1/45 Glos. C&W 4 2 Ley.
W55991-W55996 30551 1/45 Glos. C&W 6 2 Ley.
W55997-W55999 30418 1/20 Cravens 3 2 A51
M79008-M79020 30123 1/B Derby C&W 13 2 A51
E79021-E79033 30126 1/2 Derby C&W 13 2 A51
E79034-E79046 30177 1/5 Derby C&W 13 2 A51
E79047-E79075 30190 1/3 Met. Cam. 29 2 A51
M79076-M79082 30190 1/3 Met. Cam. 7 2 A51
W79083-W79090 30196 1/6 Swindon 8 2 A51
W79091-W79094 30200 1/6 Swindon 4 2 A51
SC79095 30196 1/6 Swindon 1 2 A51
SC79096-SC79111 30200 1/6 Swindon 16 2 A51
M79118-M79126 30235 * Derby C&W 9 2 A51
M79127-M79136 30240 * Derby C&W 10 2 A51
E79137-E79140 30240 * Derby C&W 4 2 A51
M79141-M79143 30246 * Derby C&W 3 2 A51
M79144-M79149 30201 * Derby C&W 6 2 A51
E79150-E79154 30193 1/5 Derby C&W 5 2 A51
SC79155-SC79168 30199 1/6 Swindon 14 2 A51
M79169-M79181 30321 1/11B Derby C&W 13 2 A51
M79184-M79188 30324 1/11B Derby C&W 5 2 A51
M79189-M79193 30325 1/11B Derby C&W 5 2 A51
E79508-E79512 30192 1/5 Derby C&W 5 2 A51
M79900 30380 1/11B Derby C&W 1 2 A51
M79901 30387 1/11B Derby C&W 1 2 A51
SC79970 30480 1/32 Park Royal 1 1 A52
M79971-M79973 30480 1/32 Park Royal 3 1 A52
SC79974 30480 1/32 Park Royal 1 1 A52
W79975-W79978 30479 1/26 AC Cars 4 1 A52
SC79979 30479 1/26 AC Cars 1 1 A52

*79118-79149 Were BUT DTO Nos 1/7 and 1/11

AEC ENGINE VARIATIONS

The AEC Spare Parts catalogue divides engines into two sections: A51 or A52. Second column below is the DTO nos. and should be referenced to the tables above.

A51    
A220L 1/B, 1/2, 1/5 Engine complete with flywheel (belt tensioner & dynamo)
A220S 1/3, 1/20 Engine complete with flywheel (right-angle drive)
A220W 1/6 Engine as A220S with two oil-pressure switches
A220Y 1/7, 1/11, 1/11B Engine as A220L less dynamo
These all had 18" flywheels and were supplied without fuel filter, fuel pipes and electrical installations. We also believe that all A51s originally had winch gear fitted to assist with engine swaps. Further details would be appreciated.
A52    
A220AC 1/12, 1/14 (24-off), 1/16, 1/17,1/21, 1/22, 1/23 (6-off), 1/25, 1/27, 1/31, 1/33, 1/40, 1/57 Engine complete with flywheel, twin fuel filter, fuel pipes & fittings and electrical installations (right-angle drive)
A220AJ 1/26 Engine as A220AC less air compressor and one oil-pressure switch
A220AK 1/51, 1/56 Engine as A220AC with 3" shorter oil filler tube
A220AL 1/34 Engine as A220AK with Simms starter motor
A220AZ 1/32 Engine as A220AJ less fan shaft spacer and with different electrical installations
A220BB 1/55 Engine as A220AC with Simms starter motor
These all had 20" flywheels and were supplied with fuel filter, fuel pipes and electrical installations.