QFX / QFC wagons

Continuing on with Train 209 and Platform Wagons. Previous articles can be found as below.

Train 209:- November 2018 http://westgateswr.blogspot.com/2018/11/train-209309.html

PE Wagons:- March 2019 http://westgateswr.blogspot.com/2019/03/pe-wagons.html

P/PJ/PH Wagons:- July 2019 http://westgateswr.blogspot.com/2019/07/p-pj-ph-wagons.html

The next development in Platform Wagons came along in 1965 with the introduction of the Commonwealth Engineering build QFX wagons. Some QR documentation refer to this wagon as the PO class. Their entry to service was around the time the RoA classification codes were be introduced. Thus, the class became QFX, Q – Queensland, F – Flat, X – Bogie Exchangeable. The wagons had drawhooks of Premium classification which later became known as D2, and 18” self-contained buffers. Running Numbers 33008 – 33107. In the mid 70’s the wagons were fitted with auto couples, during the fitting period they were classified QFXT. After all wagons were fitted with autos the class reverted back to QFX.

The wagon was 50 ft. long (3.3 metric units) and the hardwood deck that was 9 ft. 4 in. wide (The maximum limit of the rollingstock gauge). Two type of removable stanchions could be fitted to the wagon, 8 ft. 7/8 in. between straight stanchions and 8 ft. 10 ins. between set curved (goose neck) stanchions. Stanchion pockets and lashing brackets/rings were every 5 ft. along the wagon side, there was also 4 across each end. The wagon tare was approx. 18 T 5 C, and carry on A & S Lines (15.75T Axle Load +) 43 T 15 C, some B Lines (12 Axle Load) 29T 15C, on B Lines (10T Axle Load) 21T 15C. Cast steel QR 18 bogies, with 5 ft. 6 in. wheel centres and 2 ft. 9½ in wheels was fitted to the wagon. The drawing indicated the wagon can be fitted with standard gauge bogies.

The big plus for these wagons was they were designed to carry their maximum load supported symmetrically either solely at the headstock or concentrated near the centre section of the wagon. Alternatively the maximum loading may be concentrated symmetrically at other positions on the wagon. i.e. above the bogies centres, or above the centre sill or above the various underframe cross members provide their axle load was not exceeded. This makes the wagon very suitable for heavy machine and end loading.

Photos Peter Kennedy

It didn’t take long (67/68) before other jobs were found for the class, 4 wagons (33017, 33035, 33059, 33085) were fitted with mounting plates for ISO containers. Others followed as more container traffic came available. The container mounts were at each end of the wagon and when loaded with one container, the containers was to be loaded on the hand brake end of the wagon. If the container was loaded on the other end, the wagon would brake as a loaded wagon resulting in flat wheels.

QFX 33060, BK Runcorn.

QFX 33050 was used as a drum wagon for electrification.

Before long before more were built, all came fitted for containers mounting plates and were class QFC wagons. QFCA in 89 when buffers were removed.

1969 Nos 34424 – 34498 fitted with QR 27 bogies ComEng

1971/72 Nos 35660 – 35809 fitted with QR 18 A bogies Scotts of Ipswich

1973 Nos 36676 – 36725 fitted with QR 18 A bogies Scotts of Ipswich

1975 Nos 37879 – 37953 fitted with QR 27 A bogies Vickers Ruwolt

1975/76 Nos 38555 – 38654 fitted with QR 27 A bogies Vickers Ruwolt

From a simple request for 10 wagons, 550 were built.

Various modification continued for other traffic,

QR wagons in a set of 7 wagons for welded rail, 1 set in 1973 mostly QFX wagons (33041, 33061, 33062, 33053, 33079, 33084, 33097), 1983 two more sets were converted. The wagons were for carrying 360 ft. (110 metre) welded rail (18 across by 3 high, subject to rail size). 40 lengths of 60kg rail could be carried. Uncoupling rods removed from intermediate ends. The wagons were red circle (80 Km/h freight) when empty. The QR plan indicates a board painted yellow for lining up ends of rails was painted across the end wagons. Also, wagons had 50 mm wide yellow band painted full length of the solebar stencilled “Returned to Banyo Workshops when unloaded. In later years the yellow band faded.

QFP for Pozzolance Flyash Traffic, converted from QFXs 33008, 33025, 33037, 33056, 33057, 33058, 33060, 33083, 33096, 33098.

QPX 33057

QPC 38633 Cairns

QRG/QRGE Rail Recovery Wagons, 2 sets of 7 wagons. W/N 1/86 (2-1-86) shows Rail Recovery Gantry Train consists of 7 QRG wagons (33018, 33065, 34441, 35669, 35712, 35723, 38612), 1 QLP 37035 (ex QLX), and PRB 44997 (ex BLC) wagons will soon entre service. This train consist will be responsible for the recovery, loading and transport of discarded rail which has been replaced by new rail during track laying operations.

The QRG wagons, previously “QR” wagons (?? Numbers suggest a mix of QFX/QFC’s), have been fitted with gantry support bearings, four fixed stanchions, and electrical control equipment. The QLP wagons contains a power unit at one end of the wagon and racks for storage of gantry components at the other end. The PRB wagon is fitted with support brackets for carrying frames. Both sets were still at Banyo in 2010, seven of the better wagons were transport by road to Rockhampton Workshop for work wagons, the rest were transferred to Queensland Rail ownership.

QFQ Bulk Cement, most converted around 83/84. Converted from both QFX/C wagons.

8 wagons with 8 x 5 T bins. (5 T bins were the same styles as SBC/WBC/HJC/FJC).

7 wagons with 4 x 10 T cylinder type bins.

8 wagons with 2 x 10 T cylinder type bins and 4 x 5 T standard bins.

4 wagons with 1 x 40 T cylinder tank.

QFQ 35764 Cairns

QFQ 34496 Cairns

QFS steel floor and suitable for motor vehicles. Cross bars similar to SM/M series wagons were fitted.

QFCR converted from QFX/QFC, fitted with electric feeder for powering refrigerated containers. (1971). All wagons were fitted with auto couplings and bifurcated train pipe (Brake pipe/cocks/hose bags both sides of the coupling).

QFCS has 8 fixed spigots welded mounted plates for 20 ft. containers. (1967)

IRG/IRGE rail recovery wagons, 2 set of 7 wagons.

QFSR fitted with electric feeder for powering refrigerated containers (steel deck). After the introduction of the PRZY wagons some found their way onto other traffic including the CD weight bridge train.

100 QC commenced entering service in 1987, the timber deck was removed, container securing moved to load container between the bogies. This increased the single container load to 27 tonnes. QFC position for a single container only allow 23 ton (A Class Lines). Removing the hardwood floor (4 tons) and replacing it with a steel sheet increased the wagons carrying capacity.

W/N 10/89 (9-3-89) QFC to QFCA and QC to QCA. A number of QFCA wagons are now in service, with the buffers removed. QCA wagons will also be sent to traffic without buffers. When all these wagons, with buffers removed, they will revert to their original QFC and QC designations (?? Did they ??). These bufferless autocoupler wagon must not be coupled to drawhook wagons. Steel pads are welded to the coupler to prevent the attachment of transition couplings. W/N 13/89 (30-03-89) referred to QGX reclassed to QGA with the removal of buffers.

QFC wagons had a high floor above rail restricting the high of containers that could be carried, with containers being build higher other classes of wagons were being introduced to container traffic, by the mid 1990’s as new fleet of wagons were conveying containers. The need for QFC dropped off. During their life many suffered headstock corrosion/rust from carrying salted skins in containers. A number of wagons had the end sections replaced during overhauls. Many were written off due to rust issue once the new “B” and “P” series of container wagons entered service.

PFO/PFU wagons were a later conversion for steel traffic once released from container traffic by new wagons in1997. QFX and QFC wagons had been used in this traffic all their life. The PFO became captive to BHP traffic and had bolsters add. Chains and dogs were used to secure the load. Tightening chains with a dog can be accident waiting to happen, this was replaced by a winch, positioning and size of the bolsters were altered to better suit long lengths of steel overhanging the wagon resulting in the PFU wagon in 2000. These wagons remained traffic to around 2008.

PFO

PFU with over length loads

PFU with wide plate loads

PFU with steel loads

BMA wagon converted from a QFC in 1999 was an ambulance wagon for mine emergences in the Coppabella area. The wagon returned to Brisbane in 2009 and written off a few years later.

The wagons frames were designed to carry more than 43T subject to suitable bogies being fitted and track upgrading, with the NC Line upgrade to 20 axle load it was suggested but didn’t come off. There was a plan to upgrade the wagon to 100 km/h running (PFOY), but didn’t happen. The class served QR well and were the back bone of heavy haul from the mid 60’s to about 2008. Only a few wagons of the class remain today. Still in traffic are 2 sets of QR welded rail wagons, 1 set of IRG/E recovery rail wagons, IRD/IRDE rail sets, QFRS wagons on the weight bridge train and a few QFC’s in maintenance traffic. A number can be found in workshops as support vehicles (DUMP) for moving jobs around the workshops.

Frame Detail.

Following on with the QFX/C’s, Peter Kennedy has given me some details in regards to loading prestressed concrete girders on QFX/C wagons. This will offer a something different to model.

Perhaps I may enlarge slightly and that is the use of QFC wagons for long prestressed concrete (PSC) girders. As PSC girders entered the world of bridge construction they brought many advantages over steel in bridge building but their transport brought far more problems than steel girders. The real strength of PSC girders is in the heavy steel cables within the concrete. These cables were highly stretched and provided the hidden strength. Because of the stresses in the steel cable these girders must only be supported at or within one metre of each end.

QFC wagons were 15.2 metres long so the max length of a PSC girder could not exceed 17 metres in overall length on a QFC when the supports were positioned at each end of the wagon. Obviously QR, was soon asked to convey longer lengths. It appeared the only method was to mount swivel bolsters, one on each of two QFCs. We had moved long logs in the past using swivel bolsters. See General Appendix 1950 pages 211-215. These swivel bolsters were far simpler than the sophisticated method required to move long and very fragile PSC girders. While both bolsters obviously had to swivel on curves, one also had to slide longitudinally so that when the train was reversed the draft gear between the two QFCs compressed and one swivel slid along a flat slotted plate to allow for this. The next problem was the twisting effect when the leading wagon of the pair of carrying wagon entered the cant ramp at the beginning of a curve and the following wagon was still level then a twisting reaction would twist the girder and destroy the concrete. To overcome this one end of the girder had to sit on a rocking base plate located within the swivel bolster.

To secure the girders to the wagon the only place to chain down the load was to chain the girder to the swivel bolster only to allow free movement of the girder/s. We believed this was not sufficient as we carried single girder up to 52 ton each or 3 girders at 21 ton each. To adequately secure the girders vertical steel rods 1.5 inches in dia were screwed into the swivel bolsters and a heavy timber placed atop the girder/s and bolted down using the vertical rods. When more than one girder was carried on a pair of swivelled bolsters on QFCs then each girder sat on its own rocker plate. While “I” Beam PSC girders have a high level of strength vertically they have little strength laterally and it was necessary to place some form of lateral stiffing to overcome lateral deflection in transit in the form of a timber or steel truss. Care had to be taken with the positioning of the swivel bolsters on the QFC wagons to ensure that the bogie at either end of the wagon were not overloaded. The amount of centre throw was also calculated to ensure the outside edge of girder at the centre stayed within the width limits for loading on sharp curves. To stay within the width and axleload limits of very long girders a PE wagon was sometimes necessary placed between the QFC’s as a runner. At the busiest times up to 9 sets of swivel bolsters using 18 QFC wagons were in use, in slack times they were unbolted from the QFCs and the wagons returned to normal traffic. The conveyance of long PSC girders was planned conjointly by QR special loads section, the Rollingstock design staff of the C.M.E branch and the PSC bridge design Engineer from the Main roads Dept. and the makers of the early girders, ‘’Dowstress’’ at Wacol. All this may be too much for some readers but perhaps a challenge to the serious model maker to produce a model of two QFC wagons fitted with the above described gear carrying a long large PSC girder.

Photos; Peter Kennedy.

Year		Class			Numbers	Bogies		Notes
1965		QFX			33008 - 33107	QR 18		P 266. As built D2 hook drawgear, later to D1 with autos. QFXT for a period.
33017 to QFC, photo shows 3 containers, must have had different mounting plates. 33012, 33020, 33077 frames for coil steel (1973) 33013 33018 QFX Bulk Cement. Some QFX wagons fitted with mounting plates & auto couplings classed QFC (1967) P 278 shows 33081, 33085, 33095 as QFC from P 266 P 362 shows 33008, 33025, 33037, 33056, 33057, 33058, 33060, 33083, 33096, 33098 to QFP. P 362A shows 33028 to QFQ P 462. Shows ~~33043~~, 33050, 33037 as QFS wagons. P 462 A Shows 33043, 33735, 33039 as QFSR wagons. Some converted to QR rail sets. 33041, 33061, 33062, 33053, 33079, 33084, 33097. Some QFX fitted with 4 Pozzonlanic Cement bins QFP (1980) Keith Mc Drawing shows 3 mounting positions for 33017, 33081, 33095. Keith shows the following QFCR #’s 33072, 33015, 33032, 33014, 33090, 33074, 33047, 33042, 33052, 33105, 33070, 33099, 33107, 33035. The rest are 34… numbers. 33050 Drum Wagon
1969		QFC			34424 - 34498	QR 27		P 278. Page 2 allowable Configurations Page dated 96, includes QFC/QFCA/QFCR for “A” class lines
1971 /72		QFC			35660 - 35809	QR 18 A
1973		QFC			36676 - 36725	QR 18 A
1975		QFC			37879 - 37953	QR 27 A
1975/76		QFC			38555 – 38654	QR 27 A
		QFCR						P 295 (3/71) Converted from QFC/QFX for power containers
1973		QR						P 318 (7/73)
	QFP		33008, 33025, 33037, 33056, 33057, 33058, 33060, 33083, 33096, 33098.				P 362 (4/80) Converted from QFX 4 x 10 t circular hopper bins.
	QFQ		1983 34485, 37903, 38581, 38593 1984 – 35731, 35782, 38607, 34464				P362 A. (5/84) 8 x 5 t old style bins similar to FJC/SBC/HJSC etc. Said to be converted from QFX, but numbers indicate QFC’s.
	QFQ		34430, 34481, 34492, 35679, 35681, 35702, 35768. 33028				P 362 B (9/84) ( 2 x 10 t & 4 x 5 t Bins) Said to be converted from QFX, but numbers indicate most are QFC’s. 1984
	QFQ		35661, 35662, 35670				P 362 C. (9/84)4 x 10 t circular hopper bins. P 362 B Said to be converted from QFX, but numbers indicate most are QFC’s.1984 -
	QFQ		34496, 35748, 35758, 35764				P 362 D. (9/84) Single round tank. Said to be converted from QFX, but numbers indicate most are QFC’s. 1984 –
	QFQ			34466, 38585, 38647			P 362 E.(5/87). 4 x 10 t circular hopper bins. 4 x 10 t circular hopper bins. Bins owner by Northern Certified Concrete 1984
	QCA						P 413 (2/88). Converted from QFC Wagons with buffers QC P 412-2 Allowable Configurations
	QFS			1990 – ~~34438~~ 1991- 33037, 38565, 35701, 35793, ~~33043~~, 33050, 35704, 35798. 1992 – 38637, 35761, 36698, 34480, 38/579, 35689.			P 462 (6/91). Converted from QFC. Container/Motor Vehicle/Flat wagon.
	QFSR			34430, 33043, 33735 ??, 35806, 38649, 36709, 33039, 35670.			P 462 A. (11/97) Converted from QFC. Steel floor Container/Motor Vehicle/Flat wagon. 1993 –
							Ballast Cleaning Machine
	QFCA			35761, 35798, 38649			Weighbridge test train
	PFO			34431, 34433, 34442, 34452, 34494, 35672, 35694, 35720, 35734, 35753, 36687, 36699, 37936, 38628, 38652.			P 532 (1/99). Platform Wagon. These wagons reclassified from QFC to PFO when fitted with permanent dunnage and securing equipment. (1998) Some wagons reclassified to PFU with permanent dunnage and chain winches Bolster on plan not the same as PFU’s
	PFU			33014, 33032,33036, 33042,33045, 33046, 33047, 33051, 33054, 33055, 33063, 33072, 33078, 33082, 34425, 34427, 34428, 34435, 34449, 34467, 34473, 34474, 36679, 36699, 37936
	PFOY PFUY						P 532 A ((1/99) upgrade to 100 km/h (Wishful ??).
	IRD/IRDE						Rail sets for QR. 14 wagons, 2 sets converted around 2010.

Weighbridge Test Wagons.

Ballast cleaning Machine

Loading Containers on QFC wagons.

The 1979 Supplement to Working Time Table showed the following restrictions for containers in the South –Western Division.

The following conditions apply to PYC, MTWC, QFC, QFCR, QFCS, PCS, and PCSS wagons loaded with 2.591 m (8’ 6”) containers:-

(a) Trains conveying these wagons must not travel via the platform road at Toowoomba and Dalby.

(b) Speed of trains conveying these wagons must not exceed 15 km / h when crossing the Condamine River bridge at 254.640 km, Southern Line (Warwick).

(c) Speed of trains conveying these wagons must not exceed 15 km / h when passing through the platform roads at Warwick and Roma.

The 1982 Supplement to Working Time Table showed the following containers on the network. There are basically two lengths 6.1 m (20”0 and 12.2 m (40”0) with heights of 2.440 m (8’), 2.650 m (8’ 6”) and 2.650 m (8’ 8½”). Only a few restrictions on 8’ containers, mainly not to travel between Brunswick and Roma Street via Central, coal lines in CQ and west of Cairns must be on PC, PCS PYC or MTWC wagons.

8’ 6” containers had more restrictions, Ipswich to Helidon on PC, B and PFCC wagons only, restrictions between Helidon and Toowoomba. In the SWD on all lines, unless loaded on B, BR, PC, PFC, and PFCF wagons and on PCS and PCSS wagons provided there is no sub frame with restrictions. Central and Northern divisions much the same as 8’ containers.

The 8’ 8½” containers were mainly interstate RACE containers. Travel in the Northern Division was the same as the other containers. They were not permitted west of Ipswich. Restricted mainly to the NCL line via Normanby.

The 1991 Supplement to Working Time Table showed still only three heights of containers, 8’ 8½” high containers has expanded to include SRC, QRCC, C.O.D, Q.R.X, TOTAL, R & H Transport, Nitropil, Rainbow Furniture etc. The above containers can only be accepted between Helidon and Toowoomba on B, PC, PFC, PFCF, PFCC, PJS, MPJS PCS and PCSS wagons with side frames removed and with the written approval of the Regional Civil Engineer Toowoomba.

Wagons carrying containers must not be loose shunted.

Where practicable, containers should be marshalled as closely as possible to the locomotive.

Between Helidon and Toowoomba, speed of trains conveying containers must not exceed 15 km / h while passing through Tunnel No. 3 at 144.500km, Tunnel No. 5 at 151.050 km and Tunnel No. 6 at 151.900km. Suitable signs have been erected at these tunnels.

In the 1999 Operational Route Manual only QCA wagons are shown with restrictions.

Westgate has a number of QFX/C wagons.

The first 3 wagons are Far North Hobbies Kits fitted with Steam Era wheels and bogies cut down for 12 mm operation. A first I had 2 wagons loaded with containers and 1 with army APC’s. Various attempts were made to keep the wagon straight without any luck. Currently the wagons have a square brass bar glued and screwed to the floor. The load is build up around the bar hiding it from the viewer. So far so good, the wagons often run at the front of the train without any trouble. The yellow pipes are plastic balloon sticks, next time you are at Bunnings with the kids and they are handing out balloons, grab a hand full of the sticks the balloons are attached too. I also have some that are white. The runner load is made from styrene sheet, rod and shapes.

When loading steel/pipes etc, dunnage is placed between each row, today dunnage used is 4” x 4” hardwood. The main reason being it is hard to put the wrong side down using square timber. As each row is built up, the dunnage is place in the same position for each row. I cut down match sticks for the dunnage and chocks each side of the pipe. Securing equipment / chains etc. go over the load beside the dunnage to make a tight unit. I used 40 links/inch scale chain to securing all wagons. Not all chains go over all pipes, some have been belly wrapped. When loading our wagon, keep the load within the loading gauge. DEL cab/QLX/ALY are all good tools to gauge your load.

In recent times I have scratched build a number of QFC wagons. Materials used are listed below.

Construction

Floor:- Evergreen # 4067 Car Siding “0” scale 3¼” spacing

.040 thick 32mm (9’ 4”) wide x 175 mm (50’) long.

Wood grain the floor, file, sand paper etc.

Remove stanchion/lashing ring pockets. Approx. 1 plank wide x 1.5 mm deep.

Sole Bar:- Mark out location of Sole bar, 4 mm

Evergreen # 8420 (H0 10” x 4”) (.043” x .112”)

Angle edge Evergreen # 248 Quarter Round .060” (1.5mm). File round side flat to form a triangle (optional).

Outer Edge:- Evergreen # 102 .010’ x .040’ strip.

Bogie Bolster:- 22.5 mm back from headstock

Evergreen # 168. .080” x .188” (cut to fit between solo bars).

King Casting:- Evergreen # 148 .040” x .188” (10 mm long and secured to the centre of the Bogie Bolster). Check bogie bolster height and add adjusted material to have floor at correct height. (12.5 mm).

Evergreen # 138 .030” x .188”

Mark Centre Line, drill with 1.5 mm drill, tap for a 2 mm screw.

Fix bolster to floor.

Centre Sill:- Fix Evergreen #167 .080” x .156” to floor between bogie bolsters.

Sides formed from .040” sheet 9mm wide. Slop ends back 10’ (35 mm).

Fill with lead.

Enclose centre sill with .020 sheet cut to size, small overhang.

Floor Ribs:- Evergreen # 8410 (H0 10” x 4”). Cut to fix between sole bar and centre sill. Only fix to section between bodies in line with stanchion pockets. Fit the outer ends near the bogies first, fill under floor with lead sheet. Fit rest of ribs to hold lead into place. These will be at a reduced size to accommodate the thickness of the lead used.

Coupler Pocket:- I scratch build the coupler box into the floor of the wagon as below. Have also used Kadee # 262 coupler boxes screwed to the floor. This requires drilling through the floor leaving a screw hole in the floor. OK if floor covered with a load. OK for 20’ containers moulted on each end. I used 2mm nylon screws to fix the coupling, easy to trim to floor level with a cutting blade.

Add support each side of coupling on headstock

Evergreen # 145 .040 x .100.

Scratch built coupler box:-

Evergreen # 148 040” x .188”. Pivot pin 5 mm back from headstock. Add adjustment for correct coupler height.

Southern Rail bogies. Evergreen # 138 .030” x .188” supports on headstock Evergreen # 102 .010” x .040” Back end plate Evergreen # 154 .060” x .080” Bottom Plate Evergreen # 149 .040” x .250” Protrude about 1 mm beyond headstock, round front. Top plate can also be extended beyond headstock and front rounded.

Pivot for coupling ⅛” brass rod with 1 mm hole in centre.

Pivot mounting pin 1 mm brass rod.

Making your own coupler box you can reduce the coupling yoke restricting the side movement in the coupler.

More on my method of fixing Kadee couplings to wagons can be found on the Blog, March 2019. http://westgateswr.blogspot.com/2019/03/kadee-couplings-on-narrow-gauged-wagons.html

Headstock:- With 262 couplers. Evergreen # 118 .015 x .188 cut to size and shape. Fits each side of coupling box. Fill in under coupler with Evergreen # 124 .020 x .080

3 mm down each end, slopes back for 7 mm towards bottom of plate.

Evergreen # 8206 6’ x 2” support each side of coupling at the headstock ???

.4 mm holes for coupler lever brackets.

Handbrake:- Evergreen # 144 .040 .080. Drops 4 mm below floor. .012” brass rod for wheel and release leaver. 25 mm of chain.

Spigot Plates:- .015 styrene. 4 mm x 7 mm . 4mm x 8.5 mm (middle) 1mm hole, 1 mm in.

Equipment Box:- .250 x.140 x 12 mm long. Side and Floor # 127 .156” x .020” .

020 x .040 Top of Box. Centre support .010 x .025

Number Board:- Evergreen # 127 .020 x .156. 18 mm long, corners cut off.

End Stanchion Pockets:- Evergreen # 248 .06. Quarter round.

Coupler release levers:- .010 nickel silver wire. 20 mm long bent into required shape.

BP Hoses:- .025 Brass rod or Kerroby Models HD 0037

Stanchions:- .030” x .030 11 mm, 1” x 4” each side.

The following wagons still be completed with decals and weathering.

Stanchions are made to fit into the stanchion pockets on the wagon and can be removed if not required.

Using older wagons as runners as I have done, restricts the marshalling of the set. QFC have D1 drawgear and can be marshalled on the front of a train. The P wagons used as runners have D4 drawgear and need to be marshalled towards the rear of the train.

The load is also made removable to allow the wagons to return empty for their next load. If I had attached the dunnage to the pipes the wagon could have been used for other loads.

The pipe load is balloon sticks cut to length and glued to fit within the loading gauge. This batch was white and were painted. The securing straps is made from a plastic shopping bag, 1 mm strips are cut and wrapped around the load at securing points on the wagon and glued.

All railway networks have a limit on the size of loads that can be carried on their networks. The loading gauge can vary from line to line subject to structures etc. on the line. Without going into a long story, these days most networks have two (2) loading gauges, a loose gauge for loose (pipes etc.) items loaded on a wagon or container and a fixed gauge for containers. To assist me to keep loads within gauge I have built gauge as in the photo. One end also has a gauge for coupler height and position for marking buffers.