44:
80:
the wagon to prevent it collapsing when unloading. The wagon itself was 16 feet 6 inches (5.03 m) over headstocks on a 10 feet 6 inches (3.20 m) wheelbase chassis. The wagon was not symmetrical, with both the access ladder and the discharge pipe only at one end. The total capacity of powder was 611 cubic feet (17,300 L).
176:. The maximum load of the wagon was reduced to 17 tons and the diagram of the modified wagon was 1/281. As a result, in 1964 a further batch of 17 Ton wagons with vacuum brakes were constructed to Diagram 1/278, and these were followed by a 21 Ton variant designated ASH21, with these being built to diagram 1/279 (
79:
w, and the designation came about as the design of wagon features air fluidisation, a system that pumps air into the powder under pressure to loosen it and prevent clumping, thus allowing the powder to be drained from the wagon efficiently. The distinctive external ribs were designed to strengthen
358:
although they were slightly lower as the silos were mounted between the frames rather than on top of them. The wagons were completely distinctive, with two circular powder silos. A walkway is provided to permit access to the top of the silos with a ladder on each side located between the silos.
357:
to carry some types of powder traffic that were unsuited to the
Presflo design. There were two designs; diagram 1/274 had a 10 feet 6 inches (3.20 m) wheelbase while the final 100 wagons were built to diagram 1/277 and had a longer 12 feet (3.7 m) wheelbase with larger silos
35:
but wagons to this design were subsequently used to transport other powdered commodities. The later
Prestwin wagons were designed to overcome problems encountered with using the Presflo design for certain powdered commodities. Both types of wagon were loaded by gravity but unloaded using
60:
designs should either be continued or developed, there were also occasions where a need was identified that could not be met by an existing wagon designs such as the need for the bulk transport of cement powder, a commodity that had previously been carried bagged in vans.
310:. All five privately preserved Presflos were built by Butterley Iron, and the single wagon in the care of the National Railway Museum was built by Gloucester Railway Carriage and Wagon. No examples built by BR Shildon works, Metro-Cammell or Central Wagon have survived.
699:
184:). These wagons were longer than the previous Presflos and thus had a longer wheelbase and chassis. The brake arrangement was Morton brakes on one side but on the side with the discharge equipment they were fitted with clasp brakes.
508:
model in the 1970s which was marketed as a
Prestwin. The colours were fictional and the design of the wagon itself, while bearing a general resemblance to the BR Prestwin, had several major differences, most notably the silhouette.
340:
The first 00 gauge ready-to-run
Presflo wagon was produced by Hornby Dublo. This model was subsequently sold to Wrenn and was produced by them is a variety of liveries including grey. Bachmann also produce a 00 scale model.
236:, and as a result five wagons were lettered SLATE POWDER for this traffic. Further wagons that had previously been used for salt traffic were also used, some being branded BULK SLATE. Traffic was originally over the
83:
The prototype
Presflo wagon was built to BR Diagram 1/273 but all production wagons were built to diagram 1/272. A total of 1840 Presflo wagons were constructed to diagram 1/272 with the following numbers:
880:
975:
283:
A Presflo wagon, originally used for cement powder traffic, has been preserved as part of the national collection. Wagon No B873368 was built in 1951 has been part of the collection of the
306:
have been restored. A further example owned by the
Darlington Railway Preservation Society was recorded as awaiting restoration in 2013, while a further example is located at the
322:
ready-to-run models of the
Presflo in both bauxite and grey liveries. Also in O Gauge First Class Kits have produced a kit of one of the Presflo wagons used for fly ash, and
323:
649:
200:
997:
733:
275:
in July 1967, with a passenger train subsequently running into the wreckage, causing 7 fatalities and the destruction of prototype locomotive DP2.
387:
380:
354:
162:
155:
148:
141:
307:
144:
in 1958 - constructed with screw couplings and drawbars for a planned traffic flow taking Fuller's Earth to Italy via train ferries.
1184:
1232:
927:
1286:
56:
While the Ideal Stock
Committee reviewed the existing wagon designs inherited by British Railways and recommended which pre-
43:
394:
The whole fleet of wagons were originally painted in bauxite although some were later repainted in a dark grey/black.
337:
between 1960 and 1964, and was re-released between 1975 and 1979. This kit was subsequently re-issued again by Dapol.
1267:
953:
674:
1114:
256:
1305:
288:
1310:
211:
612:
531:
Different sources quote a variety of numbers for the total number of
Presflo wagons built across all diagrams
1087:
361:
Construction of the type started in 1960 and went on for 2 years. The wagons were numbered in four series:
405:
From 1972 Prestwins were used to convey Dried
Hydrate of Alumina from Burtisland to Welwyn Garden City.
446:
241:
215:
1281:(2nd (Reprinted, updated and considerably expanded) ed.). Clophill, Bedfordshire: Irwell Press.
252:
225:
A trial was carried out using Presflo wagons built to diagram 1/272 for use with powdered slate from
299:
207:
1136:
431:
284:
881:"Ellis Clark Trains E73-1-7U Finescale O Gauge Presflo Wagon 'Un-numbered', Bauxite (Pre-order)"
240:
from Delabole to Tonbridge, but when that line closed in 1967, the powder was taken by lorry to
272:
237:
219:
569:
294:
In addition five other Presflo wagons have been privately preserved. Examples located at the
103:
96:
89:
8:
1162:
512:
424:
412:
408:
248:
855:
303:
57:
830:
805:
780:
755:
488:
produced a ready-to-run model of the Prestwin in bauxite. A total of 67000 were made.
1282:
1263:
1024:
461:
295:
181:
134:
350:
24:
1206:
485:
442:
498:
kit of the diagram 1/277 version of the Prestwin, which later passed to Dapol.
37:
1299:
501:
420:
373:
366:
196:
124:
117:
110:
1050:
260:
177:
902:
1137:"Prestwin wagon, used to carry sand between Oakamoor and Port Sunlight"
158:
in 1961 - built with Oleo buffers and ordered for Rugby Cement traffic
613:"FROM THE ABSTRACT TO THE CONCRETE : GLOUCESTER'S CEMENT WAGONS"
465:
457:
976:"Wrenn Presflo "BRITISH RAIL" 20T Cement Wagon Rolling Stock W5005X"
47:
46002 hauls Presflo wagons south of Loughborough, Nigel Tout, 9.7.75
31:
goods. The Presflo design was specifically for carriage of powdered
1233:"Bachmann 38-292 CQV Prestwin Twin Silo Wagon BR Bauxite Weathered"
505:
495:
469:
416:
330:
233:
226:
318:
Ellis Clarke Trains have announced that they will produce several
319:
173:
452:
Trials were carried out to use the Prestwin design for carrying
491:
334:
271:
These wagons were prone to lateral oscillation, which led to a
32:
28:
700:"Kernow Model Rail Centre - Cornish Exclusive Wagons OO Gauge"
127:
in 1958 - specific for ICI salt traffic and built with 2 silos
23:
were the designation for two types of goods wagon designed by
473:
229:
998:"BR 22T 'Presflo' Cement Wagon 'Blue Circle Cement' Yellow"
515:
were due to release a ready-to-run OO gauge model in 2019.
453:
326:
have produced an O gauge kit of a diagram 1/272 Presflo.
259:
passenger trains, this being used in the construction of
714:
1051:"BR Wagon Numbers - Railway-owned B/DB Series - Part 1"
287:
since 1986. In 2020 this wagon was on display at their
251:
with a Presflo wagon being attached to the rear of the
172:
In the mid 1960s a Presflo wagon was modified to carry
1279:
An Illustrated History of the North Cornwall Railway
630:
584:
550:
1297:
397:Prestwin wagons ceased to be used in the 1980s
187:BR operation of Presflo wagons ceased in 1987.
168:B873794-B873893 built by Central Wagon in 1961
130:B888581-B888880 built by Central Wagon in 1958
355:Gloucester Railway Carriage and Wagon Company
308:Rushden, Higham and Wellingborough Railway
1276:
720:
1109:
1107:
1105:
1082:
1080:
1078:
1076:
1074:
1072:
1025:"Post Nationalisation Wagon Development"
954:"Hornby Dublo 4646 Presflo Cement wagon"
247:During the 1970s cement was conveyed to
199:between Aberthaw and either Oakengates,
151:in 1958 - built with instanter couplings
42:
734:"British Railways Presflo cement wagon"
667:
1298:
1257:
1019:
1017:
1015:
831:"PO APCM 8717 Cement Wagon built 1963"
636:
607:
605:
603:
601:
599:
590:
556:
1260:British Railway goods wagon in colour
1141:Science & Society Picture Library
1102:
1069:
806:"PO TC 8953 Cement Hopper built 1960"
781:"PO TC 8956 Cement Hopper built 1960"
694:
692:
570:"Kitmaster Presflo Cement Wagon Kit"
436:Sand from Oakamoor to Port Sunlight
1277:Wroe, David; Reeve, George (2008).
1185:"Twin Silo Cement Wagon (Prestwin)"
1012:
903:"FCK22 Flyash Presflo Hopper Wagon"
895:
756:"PO PF 29 Cement Hopper built 1960"
596:
13:
689:
400:
180:) and diagrams 1/ 280 and 1/ 282 (
14:
1322:
1262:. Leicester: Midland publishing.
1207:"Lima British HO Wagons - Part 2"
349:Prestwin wagons were designed by
27:in the 1950s for the carriage of
928:"1960 Presflo Cement Wagon 1.76"
907:First Class Kits mail order site
654:First Class Kits mail order site
572:. Gaugemaster Controls Ltd. 2021
190:
1251:
1225:
1199:
1177:
1155:
1129:
1043:
990:
968:
946:
920:
873:
856:"PO 5 Cement Hopper built 1960"
848:
823:
798:
773:
748:
726:
278:
1165:. Hornby Collector Guide. 2021
642:
562:
525:
1:
538:
244:and the wagons loaded there.
617:visit-gloucestershire.co.uk/
543:
333:plastic kit was produced by
266:
7:
1000:. Bachmann Europe Plc. 2021
479:
344:
10:
1327:
1163:"Prestwin Twin Silo Wagon"
1115:"prestwin wagons (page 2)"
883:. Ellis Clark Trains. 2021
736:. The Science Museum Group
51:
1143:. National Railway Museum
860:Railway Heritage Register
835:Railway Heritage Register
810:Railway Heritage Register
785:Railway Heritage Register
760:Railway Heritage Register
386:B873720-B873770 built by
379:B873370-B873419 built by
372:B873194-B873199 built by
365:B873000-B873023 built by
313:
206:Cement was conveyed from
161:B873420-B873719 built by
154:B873200-B873369 built by
147:B873024-B873193 built by
140:B887800-B887999 built by
133:B888881-B888900 built by
123:B888551-B888580 built by
116:B888281-B888550 built by
109:B888181-B888280 built by
102:B888111-B888180 built by
95:B888001-B888110 built by
932:The airfix tribute forum
675:"Presflo Wagon liveries"
518:
439:Soda ash from Northwich
324:Just Like The Real Thing
300:Quainton Railway Society
201:Birmingham Curzon Street
1258:Hendry, Robert (1999).
1029:International Good Guys
468:, Ground silica, Salt,
423:and Warrington, and to
409:Sodium tripolyphosphate
285:National Railway Museum
1306:British railway wagons
1235:. Model Junction. 2021
1187:. North Western Models
484:Between 1978 and 1982
238:North Cornwall Railway
220:Blue Circle Industries
48:
1311:Freight rolling stock
721:Wroe & Reeve 2008
46:
934:. Tapatalk Inc. 2021
425:Procter & Gamble
273:derailment at Thirsk
1117:. RMweb.co.uk. 2020
1090:. RMweb.co.uk. 2020
978:. Connoisseur Wrenn
702:. RMweb.co.uk. 2020
677:. RMweb.co.uk. 2020
419:facilities at both
413:Albright and Wilson
195:Wagons operated by
1031:. Mike Smith. 2003
427:at West Thurrock.
304:Llangollen Railway
49:
1288:978-1-903266-89-2
1088:"prestwin wagons"
296:Mid-Hants Railway
88:B888000 built by
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956:. Dublo For Sale
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529:
415:at Corkickle to
351:British Railways
257:Kyle of Lochalsh
232:quarry in north
203:or Southampton.
25:British Railways
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668:
658:
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650:"Brief History"
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443:Alumina hydrate
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193:
58:nationalisation
54:
12:
11:
5:
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1313:
1308:
1294:
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1268:
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1224:
1213:. 8 April 2015
1198:
1176:
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1011:
989:
967:
945:
919:
894:
872:
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797:
772:
747:
725:
723:, p. 135.
713:
688:
666:
641:
629:
595:
583:
561:
548:
547:
545:
542:
540:
537:
534:
533:
523:
522:
520:
517:
481:
478:
472:, Starch, and
462:Fuller's earth
421:Port Sunlightt
402:
399:
392:
391:
388:Gloucester RCW
384:
381:Gloucester RCW
377:
370:
346:
343:
315:
312:
280:
277:
268:
265:
212:Exeter Central
192:
189:
170:
169:
166:
163:Gloucester RCW
159:
156:Gloucester RCW
152:
149:Gloucester RCW
145:
142:Gloucester RCW
138:
135:Butterley Iron
131:
128:
121:
114:
107:
100:
93:
53:
50:
38:compressed air
9:
6:
4:
3:
2:
1323:
1312:
1309:
1307:
1304:
1303:
1301:
1290:
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1269:1-85780-094-X
1265:
1261:
1256:
1255:
1234:
1228:
1212:
1211:Lima HO scale
1208:
1202:
1186:
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695:
693:
676:
670:
655:
651:
645:
639:, p. 59.
638:
633:
618:
614:
608:
606:
604:
602:
600:
593:, p. 87.
592:
587:
571:
565:
559:, p. 12.
558:
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528:
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516:
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510:
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503:
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428:
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418:
414:
410:
406:
401:Traffic flows
398:
395:
389:
385:
382:
378:
375:
374:Metro-Cammell
371:
368:
367:Metro-Cammell
364:
363:
362:
359:
356:
353:and built by
352:
342:
338:
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209:
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202:
198:
197:Tunnel Cement
191:Traffic flows
188:
185:
183:
179:
178:vacuum brakes
175:
167:
164:
160:
157:
153:
150:
146:
143:
139:
136:
132:
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125:Metro-Cammell
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118:Metro-Cammell
115:
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111:Metro-Cammell
108:
105:
101:
98:
94:
91:
87:
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85:
81:
78:
77:
72:
71:
67:is short for
66:
62:
59:
45:
41:
39:
34:
30:
26:
22:
18:
1278:
1259:
1237:. Retrieved
1227:
1215:. Retrieved
1210:
1201:
1189:. Retrieved
1179:
1167:. Retrieved
1157:
1145:. Retrieved
1140:
1131:
1119:. Retrieved
1092:. Retrieved
1059:. Retrieved
1054:
1045:
1033:. Retrieved
1028:
1002:. Retrieved
992:
980:. Retrieved
970:
958:. Retrieved
948:
936:. Retrieved
931:
922:
910:. Retrieved
906:
897:
885:. Retrieved
875:
863:. Retrieved
859:
850:
838:. Retrieved
834:
825:
813:. Retrieved
809:
800:
788:. Retrieved
784:
775:
763:. Retrieved
759:
750:
738:. Retrieved
728:
716:
704:. Retrieved
679:. Retrieved
669:
657:. Retrieved
653:
644:
632:
620:. Retrieved
616:
586:
574:. Retrieved
564:
552:
527:
511:
504:produced an
500:
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483:
451:
441:
438:
435:
429:
407:
404:
396:
393:
360:
348:
339:
328:
317:
293:
282:
279:Preservation
270:
249:Kishorn Yard
246:
224:
205:
194:
186:
171:
82:
75:
74:
69:
68:
64:
63:
55:
20:
16:
15:
1055:LTSV wagons
637:Hendry 1999
591:Hendry 1999
557:Hendry 1999
494:produced a
449:to Newport
1300:Categories
1252:References
539:References
458:China clay
447:Rogerstone
430:Lime from
291:location.
242:Wadebridge
216:Barnstaple
182:air brakes
104:BR Shildon
97:BR Shildon
90:BR Shildon
1239:21 August
1217:21 August
1191:21 August
1169:21 August
1147:21 August
1121:21 August
1094:21 August
1061:21 August
1035:21 August
1004:22 August
982:22 August
960:22 August
938:22 August
912:21 August
887:21 August
865:22 August
840:22 August
815:22 August
790:22 August
765:22 August
740:21 August
706:21 August
681:22 August
659:21 August
622:21 August
576:22 August
544:Citations
466:limestone
464:, ground
267:Accidents
253:Inverness
513:Bachmann
496:00 gauge
476:powder.
470:Soda ash
417:Unilever
345:Prestwin
331:00 gauge
261:oil rigs
234:Cornwall
227:Delabole
210:to both
208:Westbury
29:powdered
21:Prestwin
432:Hindlow
390:in 1962
383:in 1961
376:in 1960
369:in 1960
320:O gauge
289:Shildon
174:fly ash
165:in 1961
137:in 1958
120:in 1958
113:in 1957
106:in 1956
99:in 1955
92:in 1954
65:Presflo
52:Presflo
17:Presflo
1285:
1266:
1057:. 2014
492:Airfix
486:Hornby
480:Models
335:Airfix
314:Models
302:, and
33:cement
519:Notes
474:Slate
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