Don
Thank you for your attention, engine specifications:
Boiler length 130 mm, diameter 80 mm, a height of 200 mm. Copper carefully built, with safety valve, water level measurement devices, pressure gauges, waste water collection tank.
Single-cylinder reciprocating steam engine, bore 13 mm, 12 mm stroke. Machine length 80 mm, width 75 mm, 90 mm high.
Unit length of 360 mm (without the gas tank), width 80 mm, 210 mm high. Working pressure to 0.2 MPa (2 kg), drawing on the research vessel hull is about 1 to 1.2 meters.
Also attach a running video:
http://player.youku.com/player.php/sid/XMTkzNTg4MzY4/v.swf