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## About This Content
There had been a ten year gap between the last vacuum braked bogie steel
carrier design and the first new air braked design in 1972. British Rail was
in the slow process of moving away from the use of unfitted and vacuum braked
stock, and with the planned number of air braked vehicles being insufficient
to replace all of the older stock and meet traffic needs, a solution had to be
found.

In October 1975, a prototype emerged from Swindon Works as Design Code BD006B
that was a conversion of an unfitted Bogie Bolster D. The wagon had air brake
equipment fitted and was mounted on modern Y25C bogies, fitted with clasp
brakes. The handbrake was applied by a single lever on each side, in contrast
to the 2 levers per side of the original. There were 4 tensioner reels per
side to help secure the load with straps, instead of the chains previously
used and the gross weight was increased by 5t. When new, it had five fixed
wooden bolsters for supporting the load. The vehicle was renumbered as 950000
was coded as BDA under TOPS and was painted in Freight Brown livery.

Two years later, the first production batch began to emerge from Ashford Works
with 200 vehicles as Lot 3907 to Design Code BD006A. These were converted in
the same fashion as the prototype and retained the low height wooden bolsters
of that design, though there were now six of them. They were delivered in
Freight Brown livery.

In the summer of 1978, Shildon Works began to produce the 600 wagons that
would form Lot 3925 and were given the Design Code BD006C. Initially the only
difference was that these wagons were fitted with 6 tensioner reels per side.
About half way through the construction run, the bolster design was changed,
with a wooden rubbing strip fitted to the metal supports reclaimed from the
donor vehicles. This design raised the load by 3 inches and also had an extra
pair of locating sockets for the stanchions that supported the load. The
livery was changed from Freight Brown to the new Railfreight Flame Red during
1979, near the end of the conversion of this batch.

Vehicles 950801 – 950900 were converted as Lot 3965 in the final few months of
1979 at Shildon. These were to the final Design Code of BD006D, issued to
reflect the change to disc brakes and a wheel operated handbrake that was
mounted on the bogie. All were delivered in Railfreight Flame Red. A further
350 conversions to this design were completed over the 12 months from March
1980, once again at Shildon, to Lot 3968. It was intended that this lot would
number 650 vehicles, but the last 300 were cancelled.

This pack contains examples of each of the main variations, excluding the
prototype and the few vehicles that ran on experimental bogies. The wagons are
available in Clean and Dirty condition in the appropriate livery or liveries.
Empty vehicles feature randomly placed bolster stanchions. There are a
selection of loads, ranging from lightweight U-channel to heavy slabs. Loaded
vehicles have mass and braking effort tailored to each load type and also
factor in the differences in the braking performance between batches. There
are 4 random lettering styles available on each variation, though these can be
fixed when placed in a scenario. Works plate details are dynamically assigned
according to vehicle number. Intelligent tail lamps are used with most options
featuring an oil lamp. The vehicles in Dirty Railfreight Red feature a Mk 1
battery flashing lamp, appropriate for the mid-late 1980’s.

The BDA 80t Bogie Bolster Wagon Pack for Train Simulator features:
* Freight brown and Railfreight flame red and grey liveries
* Clean and weathered variants
* Randomised decals with overrides
* Empty and Loaded versions with suitable physics
* Seven different loads – steel billets, steel blooms, pipes, H-beams, steel rods, steel slab and U-channel
* Animated hand brakes
* ‘Intelligent’ tail lamps
* Randomised bolster stanchions on empty versions

The pack includes a user manual with further details about the rolling stock
and the customising of some of the features when using the wagons in
scenarios.

TS Marketplace: BDA 80t Bogie Bolster Wagon Pack