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Marten, Howes and Baylis ~ Live Steam Model Boat Kits

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Topaz ~ Edwardian Steam Powered River Launch:

This elegant and powerful launch has the following features. The saloon has a galley and separate w.c. The seats in the saloon are upholstered, the floor is carpeted and there is a drop leaf table. The rear door opens to a cockpit with upholstered seats and the forward doors open to a covered steering position. Forward of this is the steam plant. A skylight covers the engine, and forward of this is the boiler. A refillable gas tank and oil separator are also provided, these are concealed beneath the floors, as are all the radio control servos. All pipework has been pre-bent and all connections fitted. The boiler and gas tank are hydraulically tested, and the complete unit steam tested before despatch. The floors each side of the engine and boiler lead to a forward cockpit with slatted seats and a drop leaf table. The saloon has a detachable coach roof, allowing access to the galley, w.c. and saloon. At 1/12th scale, there is plenty of scope for the miniaturist to add their own personal touch. The kit comprises a fibreglass hull and all ply and other woods necessary to complete the model. There are over one hundred brass fittings, (no white metal is used). These include boathooks, door plates, stanchions, tread plates, hand rails, oil lamps and taps. A Windermere kettle, (non working), is also provided. The saloon and cockpit button back upholstery is ready moulded, as are the w.c. and basin. All running gear is brass or stainless steel, bearings fitted and ready to install. Full size drawings and an instruction book with detail drawings and colour illustrations are also provided. The kit is available without the steam plant for those who wish to install other units.

Technical Data
Part No.

The Topaz is a twelfth scale model of a typical Edwardian steam powered river launch, L.O.A. 45" (1144mm), beam 8" (203mm), maximum draft 3" (76mm). Displacement 10lbs (4.5kgs), duration 30 minutes.

Large colour pictures for Topaz are currently unavailable but will be coming soon.

Main Side View

Forward cockpit with steering wheel.

Forard cockpit drop leaf table.

Engine and boiler space with the refillable gas tank under the starboard floor and the oil separator tank under the port floor, note the skylight over the engine and Windermere kettle.

Note, throttle and forward-reverse servos under the floors.

Horizontal fire tube boiler, providing steam for the twin cylinder, double acting slide valve engine.

Twin cylinder double acting steam engine, note throttle and reversing linkages, displacement lubricator and the boiler with water level gauge and pressure gauge.

Step each side of cockpit with brass tread plates concealing engine control servos.

Close up view of galley and heads.

Cabin with wash basin and separate w.c. Note oil lamps, door handles, door plates etc. The radio control receiver and batteries are under the upholstered seats.

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All images and text are copyright © JoTiKa Ltd.
All pictures can be clicked on to view a larger colour version in a new window.


To order, call:
+44 (0)1905 776 073
Or buy online at

To order, call:
+44 (0)1905 776 073
Or buy online at