This is a 4mm kit to build a model of a 10 ton sulphuric acid tank with wooden underframe based on the RCH 1907 specification.

The kit comprises:

• Detailed instructions with drawings
• 3D printed superstructure
• Pinpoint Bearings and couplings
• Whitemetal buffers
• Wire
• Rolled wire section for vertical strapping.
• Requires 3’1” equivalent wheel, either closed or open spoke types.
• Requires paint and lettering.

The kit can be assembled with cyanoacrylate adhesive.

Early Tank Wagon

This early version represents a wooden underframe acid tank with 9’ wheelbase and length 15’4” over headstocks as per RCH Drawing reprint March 1922. This design is documented as originating in 1907. It is described as:

10, 12 & 14T Tank wagons for Sulphuric Acid with Wood or Steel underframe

The following panel is noted on the diagram.

To BE CLEARLY MARKED :- “TO CONVEY SULPHURIC ACID ONLY"

EXCEPT AS OTHERWISE PROVIDED HEREON FOR FURTHER PARTICULARS REFER To STANDARD SPEC^ns FOR 10 OR 12 TON TANK WAGONS DATED DEC^mr 1907, AND14 TON TANK WAGONS DATED FEB^ry 19ll.

DRAWING 107.

PRIVATE OWNERS10,12 & 14 TON TANK WAGONS FOR THE CONVEYANCE OF SULPHURIC ACID, NOVEMBER,I913.

This version is fitted with Charles Roberts axleboxes marked with 9” x 41/4” journals appropriate for the 10 ton wagons.

This is a sample list of photographs of sulphuric acid tank wagons.

Hudson, B. (1987) Private owner wagons. Headstock. ISBN 0 9512793 0 0

See Plate 27 for 14 ton Charles Roberts tank "Prentice Brothers Ltd., Stowmarket accompanied by RCH drawing 107 1907 design (1922 reprint).

See Plate 95 for 1933 build Charles Roberts 12ton tank "The West Cumberland By-Products Co, ltd., Flimby,".

Turton, K. (2007). Private owner wagons: A sixth collection. Lightmoor Press.

See page 139 for Spooner & Bailey Ltd. Charles Roberts 1906 Tank

See page 142 for John Summers & Sons Ltd. Tank No.13 delivered 1914