Chasewater Railway houses an extensive collection of goods wagons, break vans and carriages from various eras and railway companies (from pre-Grouping through to BR days). Below is a selection of the various items of stock; some operational and others either awaiting or undergoing restoration:

The High Capacity Coal Waggon

The Merry Go Round Waggon or more commonly referred to as MGR hopper, had a long life, first prototypes were built in Darlington works in 1964, and testing at  Darlington Works led to over 11,000 waggons being built at Shildon Waggon Works from 1965 to 1980’s. 

The waggons are designed with automatic door operating mechanism for the conveyance of coal from a continuous moving train of waggons.

The capacity of the wagon, is the maximum permitted for a four wheeled waggon with all route availability; to attain this it was necessary to design the waggon to the maximum width and height permitted by W.3 loading gauge for the UK rail network.

With all body stiffening being internal, the maximum discharge door area had been provided, the end doors being narrower than the centre doors to clear the wheels whilst ensuring maximum door opening. The angles of the hopper sides and the valley of the angles in the corners of the waggon are designed to allow the coal to flow freely without any restriction, the three hopper outlets and the six bottom doors ensuring rapid bottom discharge.

The body of the waggon is galvanised to reduce corrosion, thus allowing plate of the minimum thickness to be used, resulting in a reduced tare weight.
The surface presented by the galvanising also assists in the discharge of the coal.

The under frame is all steel welded construction consisting of ten inch by ten inch H section solebars suitably stiffened and fitted with a superstructure which forms a cradle to support the body.

The waggon also has laminated side bearing springs which are fitted with continental single link suspension incorporating eye bolt adjustment with two stage rubber auxiliary. A horizontal link anchorage is also incorporated to maintain stability on the rubber auxiliary whilst still providing freedom of the continental link.

Air operated power disc brakes are fitted, operating on one combined wheel and disc on each axle, braked up to tare weight, A right hand brake lever hand brake is provided on each axle, operating cast iron brake blocks on the tread of the other two wheels. The handbrake design goes back to the North Eastern Railway, can be found on NER wooden Hopper waggons.

Doors are arranged in pairs, consisting of a driving door to which the gears and door operating lever are connected to slave or following door.

	HAA 351111, owned by Chasewater Railway, was saved from Mossend Yard still loaded with coal. It spent its last days operating coal circuits of Scotland before ending up crippled at Mossend Yard. The wagon still has fully operational air brakes and carries its EWS Maroon.
	HMA 355798 is owned by NWPG, saved from Immingham TMD. Crippled due to defective doors which in turn saved it from the scarp yard, 355798 has been rennovated into Railfreight Red livery and recently starred at NEC Warley. The difference between HMA and HAA, is that HMA has better brakes allowing it to run at higher speeds when loaded. This wagon still has fully operational air brakes.
	HDA 368103 is owned by Chasewater Railway having been saved from Mossend Yard where it resided with 351111 in the crippled siding. Crippled due to defective handbrake, it then become a source for spare parts to keep other MGR’s running. It lost its Drawhook, other parts of its draw gear and other components. It arrived at Chasewater in 2015 but had to join the queue for overhaul. Now back up and running after two solid months of work in 2019/20.
	HAA 352203 is owned by Chasewater Railway and is another example another one saved from Mossend Yard.
	CDA 353224 is owned by the NWPG, having ended up crippled St. Blazey TMD. Originally crippled due to defective roof and left on siding with no road access it was saved as the very first HAA to be converted into a CDA; 353224 being prototype for the class, arriving at Chasewater in 2016 it is in need of some work before running.
	HAA 354966 is owned privately with NWPG. It was crippled due to defective doors at Onllwyn Washery and had been moved round sidings with a digger/loading shovel. Other than some work to get train brakes operational again it is ready for traffic.
	HAA 354456 is owned by NWPG. The wagon spent its time in the Ayrshire Valleys working between collieries and docks at Ayr before coming to grief in 1988 in a large derailment at Dellamlington, just next to what is the Doon Valley Railway today. 354456 and 5 other HAA’s were dumped along side the running line and left untill 2007 when the other 5 were scrapped and 354456 was donated to Doon Valley Railway, it was re-railed and left awaiting repair untill 2020 when NWPG secured the wagon. Now at Chasewater, it is in the que awaiting its turn for repairs.