Hello,  Just found this site while doig some net surfing.  Im interested in marine steam engines and am on the lookout for a small steam engine project that could power my 10' wherry. Im a lousy machinist LOL, but a good patternmaker and metalcaster. If anyone knows of a good set of plans please let me know. Im looking for something out of the ordinary. Would also like to see a picture of a herreshoff auxiliary engine that I found a drawing of in a 1962 steamboat magazine. Its a 3.5" x  3.5"  piston valve design that I find very attractive.  Thanks in advance and Hello from Delaware......

Hi there,
Welcome to our site ,i"m positive that you will find a lot of answers here .
We have some very smart ducks here .
Greetings from The Bombus

welcome aboard.

if you are looking for an engine for a 10 footer then reeves have some intresting plans located http://shop.ajreeves.com/stationary-engines-12-c.asp

an example of one of there engins can be seen http://www.ebay.co.uk/itm/Live-steam-compound-steam-launch-engine-/160831097672?pt=UK_Trains_Railway_Models&hash=item257247cb48

on the herreshoff auxiliary i am not aware of this one other than a possibe tripple half way down here http://www.prestonservices.co.uk/marine.html

Thanks peewee, those arte some good links 

Welcome David