Hi, A good place to look for a suitable boat, homebuilt, is the following web page http://www.duckworksmagazine.com Its part an online store and part free. But it has in the plan section with nearly all the wooden boat designers in a row. I know there are a few which have drawings for a boat which splits in half or folds up. Might be a wee bit smaller as you requested but the idea might be useful. Just an example, http://www.duckworksbbs.com/plans/benjamin/stasha/index.htm Just a thought you need a backbone, keel, for the boat . So why not use the engine/boiler assembly base as a fixed unit and slide the bow and stern piece over this. Joining them somewhere in the middle of the engine set. Regards Wilfried Vermeiren http://users.skynet.be/modelbouw.wilfried -----Oorspronkelijk bericht----- Van: modeleng-bounce@xxxxxxxxxxxxx [mailto:modeleng-bounce@xxxxxxxxxxxxx] Namens Chris Crosskey Verzonden: maandag 19 maart 2012 13:31 Aan: modeleng@xxxxxxxxxxxxx Onderwerp: [modeleng] Re: Thoughts on future projects.... Mostly I'm interested in finding out about the hull design issues..... I'd have thought it's possible to do it with five sheets of marine ply... one for the centre section, then two each for prow and stern sections, I was trying tofind out if anyone else had built a 15-20 foot launch with a splittable hull.... I have nowhere I can keep a craft that big if it doesn't came apart...... and I doubt I can really sensibly build a 10-foot craft with steam paddles that will carry more than one other person.... chrisc MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.