There was a guy that was building a full steam set for a Yamato (from memory).
I'm certain I took pictures of it at a show once, I'll have a look later.
anyone else remember it?
Just found this but the link is dead....Posted by: Jack Rose on 10/05/2003 20:36:26.
I am currently building a steam plant to fit into 9ft long 16 inch beam fibreglass model of the Japanese battleship Yamato (Westward Mouldings). The main propulsion is provided by 2 scale model (Stuart Turner) triple expansion steam engines, the auxiliary services (condensers cooling water pump, small car alternator - for radio control and other electrics, bilge pumps, etc.,) from a horizontal scale model mill steam engine (Stuart Turner No. 9) and feedwater supplied by a steam powered (Southworth Engines) duplex boiler feed pump. The feed pump is controlled by my own design of float controller in a small auxiliary vessel piped into boiler (similar to the principle of a toilet cistern water level control). All the engines have condensers and feed back to a water tank, which supplies the boiler feed pump forming a closed feedwater system. The boiler has been built to my design based on a scotch marine type with "Inglis" modification, essentially a return tube boiler with an additional return path, providing a 3-pass passage through the boiler for the flue gas, it is heated with a blowlamp run on liquid petroleum gas (LPG - propane). The boiler runs between 100 and 120 psi (The main part of the boiler is about 10 inches long by 7 inches diameter and there is a single furnace tube, 2 inches diameter - the main burner blowlamp is about 1.25 inches diameter).
The flow of LPG gas (at about 30psi) is controlled by a gas pressure controller that I have cobbled together for the boiler blowlamp (a standard Sievert/Primus No. 2942 rated at 15.5 kW, 1200 gms/hour propane gas, at 2 bar (26 kW, 2000 gms/hour at 4 bar), which is run between 2 and 4 bar mainly dependent on the electrical loading on the steam driven alternator). The controller consists of a metal bellows sealed gas valve assembly with the control screw removed and replaced by a diaphragm unit (taken from a pressure controlled electrical switch) to operate the gas valve. The sealed pressure side of the diaphragm unit is connected to the boiler and the boiler pressure pushes against the pressure tight diaphragm to operate a short rod on the atmospheric side (which formerly operated the switch) that pushes shut the gas valve as boiler pressure rises. There is a small blowlamp (a standard Bullfinch 1075 Btu/0.32 kW burner) connected directly to the gas supply to act as a pilot lamp.
You can see the pictures of my battleship, its steam plant and me at this website:
http://groups.msn.com/TELsGlobalModelEngineering/shoebox.msnwunder "Jack Rose Battleship" and "Rogue's Gallery".
I have, however, a major problem in that I currently only have one triple and need a second (I have the condenser for it), the person who was going to make it is no longer able to. Could anyone else who may be able to help please contact me.
Many thanks
Jack Rose (Lt.Cdr. (Submarines) RN retired), Brighton
http://www.steamboat.org.uk/hotair/hottopic.asp?view=%201,2,3,9,new,req&expand=yes&topic=40