Somewhere in the thread on the Genesis and Hornby 4 and 6 wheel coaches are some photos of a 1937 SR weed killing train composed of a modified 6 wheel passenger brake and 6 old tenders. I thought this would be an interesting modelling challenge. Thanks to Tony Seal (ex 3mm Society) I was able to find some more prototype information and photos. The attached photos show my 4mm scale (OO) representation of the train.
The van, as per prototype, is a modified SECR 6 wheel passenger brake van, with duckets at both ends, made from a Branchlines brass kit. The tenders are 4 ex-SECR O1 tenders and 2 ex-LSWR Adams tenders from Golden Arrow Productions resin kits. The build includes quite a few 3D printed items (e.g. pipe fittings, valves) produced by friends in the Risborough & District Model Railway Club (RDMRC).
If you want to see the model in the flesh you’ll find it on the RDMRC stand at Railex, Aylesbury on 27-28 May : http://www.railex.org.uk/
Roy