----- Original Message ----- From: "Steve Wood" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, September 21, 2006 8:34 PM Subject: Re: [canals-list] Re: Dry-docks for canal boats
> Daniel Hutchinson wrote: > > http://www.alvechurch.com/marinas/anderton/index.html > > Link is actually <http://www.alvechurch.co.uk/marinas/anderton/index.html> > > This put a crazy idea into my head. I'm involved with the Caldron and > Uttoxeter Canals Trust and was chatting recently with another member > about overcoming the problem on headroom in Frog tunnel. Is there a > solution here? Suppose your boat floated into a tank which was quite > deep, say aft draught or so. The door is closed and the water pumped > out. The whole lot will stay afloat as some of the water has been > replaced by air, but the roof of your boat will be maybe 18 inches > lower, depending on draught as it sits on the bottom of the tank. > > Would this work...? Obviously this assumes that the tunnel can be > dredged and the tank is not too wide at the waterline. That is interesting Steve. I wonder if you had as much to drink when you thought this up as I have had in replying :-)) Frog is a very narrow tunnel and I suspect that there is not much draft over the invert because the water level in that pound has already been lowered. When the water is pumped out of the tank wouldn't the tank float higher as the boat floats lower? I can visualise a situation where equilibrium prevails and the cabin roof gets stuck in the middle of the tunnel and the tanks grounds on the bottom. How to extradite tank and boat could be interesting. The Hoffman monologue springs to mind :-) Phil Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/canals-list/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/canals-list/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
